Samson S zone Musical Instrument User Manual
Contents
1. 4 INPUT 4 ZONE STEREO MIXER Owners Manual SAMSON Un A D 7 A Un de 9 Y N A 7 O mm u Safety Instructions Consignes de s curit Sicherheitsvorkehrungen Instrucciones de seguridad WARNING DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION AVIS RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR WARNING To reduce the risk of fire or electric shock do not expose this unit to rain or moisture To reduce the hazard of electrical shock do not remove cover or back No user serviceable parts inside Please refer all servicing to qualified personnel The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product Important Safety Instructions Please read all instructions before operating the unit Keep these instructions for future reference Please heed all safety warnings Follow manufacturers instructions Do not use this unit near water or moisture Clean only w2. DESS a1nqujsIp auoz s BUISN UDINDIS 1 5 D 101 015 2211 0 SMOYS ajduDxa au S zone System Configurations up S zone s Four Room Set E JOO 5505 505 505 5g 422 Mola inaino swoz indina swoz 1 sas swoz HOINOGW San San BENZIN TINAN DS INOZ v t euoz Cc 19 S zone Wiring Guide S zone Wiring Guide There are several ways to interface the S zone depending on your exact monitoring set up Follow the cable diagrams below for connecting your monitor system Mic Input Wiring for Channel 1 and 2 Mic Input Euroblock to Female XLR Hot Zi 1 Hot 2 Solder Points End View 4 3 4 Ze LINE 1 IN MIC 1 IN Line Input Wiring for Channel 1 and 2 Stereo Line Input Euroblock to Two RCA 2 GI y GI Tip signal
3. ZONE SELECT 2 3 Monitor Section Zone Select Switch Using the Monitor VOLUME control When you are monitoring the signal from the selected sound zone you can use the volume control to adjust the level in the internal Monitor super speaker or in the head phones VOLUME Monitor Section Output Volume Control Knob 13 Operating the S zone Using the headphone Any standard headphone with an impedance of 8 200 ohms can be plugged into the front panel PHONES 1 4 inch jack When a headphone is connected to the PHONES input the internal super speaker will turn off allowing the user or installer to monitor any zone without disturbing the room ambiance ZONE SELECT HEADPHONES S zone Phones Jack Routing a signal to the Internal Monitor The following section explains a simple procedure to route signal from inputs to outputs and then monitor the Zone output in the Zone Monitor Connect an input signal like a CD or DVD player to the one of the S zone s line inputs Assign that input to the or more zones using the input channel ZONE assignment switches adjust the assigned ZONE s OUTPUT VOLUME control s so that you see the input reading on the out put meter s Position the ZONE SELECT switch to the Zone that you want to hear in the monitor use the Monitor VOLUME control to adjust the level in the speaker or headphone Note If you assigned
4. 2 D 2 XY f lo S M a neon zs Zone Output Right a T Exch RR X 1 E Tot d Y de 4 ce gen a Cold 3 Zone Output Left Zone Output Balance Line To connect the 5 zone Zone Outputs to an unbalanced input using standard 1 4 inch connectors follow the wir ing diagram below Zone Output Un balanced Line Euroblock to 1 4 inch Phone 5 2 Ground Signal Tip signal 4 Y Y A ES Ch T E Ground Sleeve ground re bs Tip signal 12 E Ground Sh au ground Zone Output Unbalance Line 11 Operating the S zone Using the S zone Input Section The S zone provides four stereo inputs that can also be set to accept mono signals The input channels are where you will connect your sound sources like CD DVD player AV monitor output paging mics or just about any other audio signal Channel 1 and 2 also feature a high quality micro phone input offering 58 dB of gain and phantom power for using condenser microphones In addition Channel 1 and 2 include a ducking feature which will automatically lower the volume of the line inputs so that an announcement can be heard over the program music material The S zone s inputs are laid out in four separate input strips that include a volume control a stereo mono selection switch four zone assignment switches and even a conve nient scribe strip for labeling the
5. STEREO MONO switch This switch is used to select either stereo or mono input SCRIBE STRIP Convenient area for marking the input source allowing you to label the channel with the device connected to the input ZONE 3 When the LED Backlit switch is pressed in the switch lights amber and the input is assigned to ZONE 3 ZONE 4 When the LED Backlit switch is pressed in the switch lights orange and the input is assigned to ZONE 4 MIC LINE 2 Channel 2 input with the same knob and switch complement as Channel 1 LINE 3 Channel 3 input with the same knob and switch complement as Channel 1 LINE 4 Channel 4 input with the same knob and switch complement as Channel 1 MONITOR SECTION 11 12 MONITOR SPEAKER This built in miniature super speaker allows you to listen to the signal that is pres ent at any ZONE OUTPUT MONITOR VOLUME This rotary control is used to adjust the monitor level heard in the front panel Headphone jack or SUPER SPEAKER 14 ZONE SELECT switch This four position switch is used to assign any of the four Zones to play in the MONITOR SPEAKER or HEADPHONE JACK HEADPHONE JACK Connect any standard stereo headphone using a standard 1 4 inch jack to moni tor the ZONE OUTPUTS ZONE OUTPUT SECTION 15 16 17 18 19 21 24 VOLUME This rotary control is used to control the overall level of OUTPUT ZONE 1 HIGH High frequency equalizer rotary contr
6. Designing an Installation Plan If you are a professional installer you ll probably want to skip over this section however if you are setting up your system for the first time this section can help make your installation a little bit easier Before you start plugging stripping and connecting wires it a good idea to have a clear installation plan To create your installation plan you need to consider several design parameters including what sound sources will be used if announcement paging in necessary which rooms need to have sound is remote volume control required which type of speakers will do the best job for the room they are covering and your wire plan Selecting the Sound Sources The S zone provides four input channels with the ability to connect up to six input sources On input Channel s 1 and 2 there is an input for connecting microphones with phantom power to operate condenser type mics You can connect line level signals on all four input channels so sig nals from TAPE CD DVD or Karaoke players Audio Video TV monitors Radio Tuners DJ mixers or any other line level device can be used as a sound source You may also be able to connect the output from a Home Hi fi receiver if it s equipped with a line level output For example in a small to medium size restaurant you may want background music from a CD in a room Disco Karaoke in another room and have the ability to have a hostess paging parties for their tables an
7. un personnel qualifi Le signe avec un clair dans un triangle pr vient l utilisateur de la pr sence d une tension dangereuse et non isol e dans l appareil Cette tension constitue un risque d lectrocution Le signe avec un point d exclamation dans un triangle pr vient l utilisateur d instructions importantes relatives l utilisation et la maintenance du produit Consignes de s curit importantes 1 Veuillez lire toutes les instructions avant d utiliser l appareil Conserver ces instructions pour toute lecture ult rieure Lisez avec attention toutes les consignes de s curit Suivez les instructions du fabricant Ne pas utiliser cet appareil pr s d une source liquide ou dans un lieu humide Nettoyez l appareil uniquement avec un tissu humide Veillez ne pas obstruer les fentes pr vues pour la ventilation de l appareil nstallez l appareil selon les instructions du fabricant 8 Ne pas installer pr s d une source de chaleur radiateurs etc ou de tout qui pement susceptible de g n rer de la chaleur amplificateurs de puissance par exemple 9 Nepasretirer la terre du cordon secteur ou de la prise murale Les fiches cana diennes avec polarisation avec une lame plus large ne doivent pas tre modi fi es Si votre prise murale ne correspond pas au mod le fourni consultez votre lectricien 10 Prot gez le cordon secteur contre tous les dommages possibles pincement tension torsion etc Veill
8. D d 79 082 C O291192911019 MS Dale um e 0 A D X 7 0 7 paaaadg The Samson S zone four channel stereo zone mixer utilizes state of the art high quality audio circuit technol ogy for precise tonal and level control Here are some of the S zone s main features e The S zone has four stereo Input Channels with a e Ultra low noise circuitry with high quality op amps Volume control Stereo Mono switch and our dedi ensure superb audio fidelity cated Zone assignment switches Electronically balanced and unbalanced input Channel 1 and Channel 2 inputs feature a high and output connections are made via easy to use quality microphone pre amp with phantom power Euroblock connection strips allowing you to connect just about any dynamic or condenser microphone Internal power supply ensures reliability and trouble free operation e TheS zone features four stereo Zone Outputs each with a Stereo Mono switch Volume control High Standard 19 rack design the S zone requires only a and Low equalizers and a six segment LED bar VU single rack space for easy integration into any travel Meter monitoring the output level enabling you to ing or fixed installation audio system control the overall level and tone independently for four discreet coverage areas e Opti
9. and connect it to any standard AC socket Press the front panel Power switch in order to turn on the S zone Power on your CD player then power your active speaker or power amp On the Line 3 input channel press the Zone 1 Switch Apply an input signal from the CD player to the S zone and slowly raise the front panel LINE 3 Volume control knob to the 0 point While the input signal is present slowly raise the front panel ZONE OUTPUT 1 control knob to the 0 point if sending signal from a CD Player drive the mixer s out put meters at approximately 0 VU Quick Start continued Once you get a good level reading on the ZONE OUTPUT VU meter you can begin to slowly raise the volume control on your active speakers or power amp Now experiment with the level using both the Zone 1 Output and the power amp input level On active speakers there is usually a unity gain or 0 dB point on the volume control knob and you should set the control to that position to start Then you may need to lower the ZONE OUTPUT VOLUME control or the speaker s volume control to set the proper level that you want in your particular room If your are using a power amp you may want to turn the power amp all the way up and again you may need to lower the ZONE OUTPUT VOLUME control to set the proper level You may also need to lower the ZONE OUTPUT VOLUME control or the power amp s volume control to set the proper level that you want in your part
10. control ZONE 4 OUTPUT This connector includes the Zone 4 Left and Right balanced output connections along with the connections for the REMOTE volume control LINE 3 AND 4 INPUT This connector is used to hook up the LINE 3 and 4 Left and Right input con nections DUCK TRIM This rotary control is used to adjust how much signal level is dropped when the micro phone activates the DUCK circuit MIC LINE 2 This connector includes the connec tion for a stereo line level and mono microphone input for channel 2 222 MIC TRIM The rotary control is used to adjust the input sensitivity of the microphone pre amplifier on channel 2 J MIC LINE 1 This connector includes the con nection for a stereo line level and mono micro phone input for channel 1 K The rotary control is used to adjust the input sensitivity of the microphone pre amplifier on channel 2 L CH 1 MASTER switch This switch is used to enable the ducking function on channels 2 3 and 4 M DUCK ENABLE Channel 2 will act as a ducking master when this switch is pressed in and the volume of channels 3 and 4 will automatically be lowered when the there is a microphone signal on Channel 2 DUCK ENABLE Channel 1 will act as duck ing master when this switch is pressed in and the volume of channels 3 and 4 will automati cally be lowered when the there is a micro phone signal on Channel 1 Designing an Installation Plan
11. in Zone 2 In this case press the Zone Assign switch 1 on channel one but do not engage the Zone 2 Assign switch MIC LINE 1 VOLUME ZONE 3 ZONE 4 OO ZONE 1 ZONE 2 Sv ZONE 3 ZONE 4 Channel Input Zone Assignment Switches Using the VOLUME Control Each channel of the four S zone s channels have an inde pendent level control labeled VOLUME It s a good idea to start your set up with all of these turned off in the fully counterclockwise position Once you have all the chan nels connected and the ZONE assignment is set you can use the VOLUME control to adjust the level of the channel input in any zone Now that you have made the connections for your inputs you can test the signals by using the S zones MONITOR selection voLuME Sn Channel Input Volume Using the Monitor Section The S zone features a unique monitor section located in the center of the unit allowing the operator or installer to listen to each of the zones in headphones or in the internal super speaker The added convenience allows the installer or end user to monitor the program material that is play ing in each zone from a single location in the building MONITOR ZONE SELECT 2 1 3 4 MONITOR VOLUME S zone Monitor Section Selecting the Output The ZONE SELECT is a four position switch used to assign any zone to the monitor section for listening in the head phone or internal super speaker
12. input source Set the Input for Stereo or Mono Operation The S zone is a stereo device and thanks to the STEREO MONO switch you can set any of the input channels to accept either stereo or mono signals If you are connecting a mono source like a microphone you will want to set the Stereo Mono switch to the MONO position By selecting MONO you do not have to worry about which speakers the mic will be routed to regardless if you are using a mono or stereo sound zone If you are connecting a device like a CD or DVD player and you want to run that signal in stereo set the STEREO MONO switch to STEREO position To learn more of output using stereo and mono outputs see the section Setting the Outputs for Stereo or Mono operation on page 14 of this manual MIC LINE 1 voLuME O 1 MONO 1 5 sT MONO Channel Input Stereo Mono switch Using the Zone Assignment switches The S zone channel input strips each have assignment switches for the four output zones labeled ZONE 1 ZONE 2 ZONE 3 and ZONE 4 These switches are used to select which of the sound sources will be heard in each of the zones The switches are backlit with red LED s which illuminate when the switch is pressed in indicating the input channel is assigned to the Zone Output Using these switches it is possible to choose what you are hearing in each zone For example you may want make an announce ment in the room connected to Zone 1 but not
13. or cut and that the LOW frequency response of the channel is flat The HIGH Frequency EQ control provides up to 12 dB of CUT or BOOST at 10kHz You ll notice a single detent when the control knob is located in the center of its travelindicating that there is no boost or cut and that the HIGH frequency response of the channel is flat The next section explains how to apply some common equalization curves to for typical applications Operating the S zone Setting the Zone Output EQ For Voice To set the Zone Output equalizer for vocal operation you want to emphasize the midrange response To do this lower the LOW and HIGH frequency control knobs by about 3dB so set them to the 11 00 position as shown in the following diagram Vocal EQ Contour Setting the Zone Output EQ For Music To set the Zone Output equalizer for music playback you want to emphasize the bass and a treble like most con sumer hi fi systems To do this raise the LOW and HIGH frequency control knobs by about 3dB so set them to the 2 00 position as shown in the following diagram Music EQ Contour Note It s a good idea to test the sound zone with the type of program material music or speech that will ultimately be used in the working installation Your speaker may sound great with little or no added equalization on the Zone Output You can use an RTA Real Time Analyzer like the Samson D1500 to measure the frequency response of the speaker system in any sound
14. s always a good idea to start with all the Zone Volume controls turned all the way down fully counter clockwise Then follow these steps Once you have a signal playing in the input assign the input to a zone Now slowly raise the LEVEL control until you get to the desired level and look for the level display on the zone output meter appoximately 0 VU on the output meter an o ooooooj VOLUME Zone Output Volume 14 Using the Equalizer Each of the four Zone Outputs includes a two band equal izer allowing individual equalization settings on each output channel Located in the Zone Output section on the right side of the front panel each output s equalizer features LOW BASS and HIGH TREBLE controls By using these controls to adjust the frequency response you can to set an individual tonal contour curve for the speakers connected to each Zone Output For example if you are using a zone for announcement paging only you can cut a little of the bass and treble which will produce an equaliza tion contour emphasizing the midrange For music you can add bass and treble to produce a Hi fi equalization contour ZONE 1 OUTPUT Zone Output Equalizer The LOW Frequency EQ control provides up to 12 dB of CUT or BOOST at 100 Hz You ll notice a single detent when the control knob is located in the center of its travel range indicating that there is no boost
15. the equipment rack to the various sound zones Depending on the speakers you choose and the length of cable runs you need to make you may choose to run speaker level or line level to the sound zones If you are using passive non powered speakers you will need to connect the S zone to a power amp and run speaker wire however you need to be careful to pay attention to the wire gauge and total length of the wire run If you are us ing powered active speakers you can run long distances using the balanced outputs directly from the S zone Another type of installation is one that uses speakers and amplifiers with 70 volt transformers The benefit of these systems you can run long lengths of wire and have many speakers connected to a single amplifier Since the equipment used in these types of installations are fairly specialized you ll probably need professional help Only a licensed and insured professional sound contractor should perform installations of 70 volt systems Selecting Speakers for Each Zone To select the speakers you need to consider a few impor tant issues like where you are going to place your power amplifiers using powered or un powered speakers or if you need to run a 70 volt distributed sound system The following sections provide an overview on how to connect passive speaker or active speakers in a typical installation Designing an Installation Plan Using Passive Speakers If you are using passive un powere
16. to all input sources like CD DVD MP3 amp TAPE players and amplifiers in your audio sys tem is off Turn the volume control of your active speakers all the way off If you are using passive speakers with a sepa rate power amplifier be sure to turn the power amp volume controls all the way off TOR T LINE 4 IN MIC On the front panel of the S zone set all the VOLUME control knobs to their bottom most OFF setting Set all ZONE OUTPUT LOW and HIGH Equalizer control Knobs to their flat 0 center detented position Now make the S zone input connections using the Euroblock connectors on the rear panel Mic Input Euroblock to Female XLR bo Common 1 Hot 2 B Si CT 5 cd common Cold 3 GI ei Stereo Line Input Euroblock to Two RCA Tip signal Ol Tip signal Sleeve ground Y at ESL 5 gt Right Line Input Sleeve ground A Tip signal Tp Sleeve ground SS 55 B E Left Line Input 1 Sleeve ground Next make the S zone output connections using the Euroblock connectors on the rear panel Zone Output Balanced Line Euroblock to Male XLR Common Common 0 Hot 2 A p 00 End View Solder Points Cold 3 Zone Output Right Common Common 0 Hot 2 F E 1 ac e Be Cold End View Solder Points Cold 3 Zone Output Left Plug in the supplied AC connector
17. 4 2 GI Tip signal Sleeve ground GI y y aa qe s LIES 2 4 15 O Right Line Input Sleeve ground Tip signal Tip signal Sleeve ground Left Line Input NEE Sleeve ground Line Input Wiring for Channel 3 and 4 Channel 3 and 4 Stereo Line Input Euroblock to Two RCA Tip signal Tip signal Y SE 1 Ki Channel 3 Right Line Input Sleeve ground Sleeve ground Tip signal 2 H Sleeve ground m 1 2 em d Channel 3LeftLinelnput Es 2 Tip signal Sh d E leeve ground 2 A Tip signan Sleeve ground Tip signal a e 1 Y 4 1 ft y Channel 4 Right Line Input H Sleeve ground Tip signal lieve ground Tip signal Line Input Wiring for Channel 3 and 4 Sleeve ground Zone Output Balanced Line Euroblock to Male XLR Common 2 1 1 2 REMOTE End View Solder Points 4 3 Zone Output Right Common 2 1 7 2 Cold End View Solder Points 4 3 Zone Output Left 20 S zone Specifications Input Impedance Mic Line Max Input Level Mic Line Maximum Gain Mic Line Output Level Output Impedance Balanced Unbalanced Max S N ratio THD CMRR Phantom power Tone Controls LOW HIGH Connectors Inputs Outputs Power Supply Mains Voltages selectable Fuse Power Consumption Power inlet Dimensions Weight 21 S zone S
18. MIC TRIM CH 1 DUCKS 3 4 DUCK ENABLE Mic Trim Experiment by moving each of the CHANNEL VOLUME control knobs up and down carefully listening to get the best balance between your microphone and music from your CD player Now read on and learn about more different wiring hook ups and more on using some of the S zones advance fea tures If you have followed all the steps above and are experienc ing difficulties with any aspect of setting up or using your S zone you can call Samson Technical Support 1 800 372 6766 between 9 AM and 5 PM EST or contact your local distributor Connecting the S zone Get Connected The S zone s rear panel is where you will find all except the headphone jack of the input and output connections The S zone provides four input channels that can accept up to four line level sources and two microphones and four output channels to feed the sound zones The connections for these inputs and outputs are made via standard Eurob lock connectors the mating ends to connect to your wires have been included The Euroblock connectors are easy to wire up just strip your wire insert it into the Euroblock connector and tighten down the screws The next section of this manual will detail the connections for the S zone s inputs and outputs Euroblock Connector Connecting the S zone Inputs After you have designed a plan for your installation you will need to connect your audio sou
19. NEL 3 CHANNEL 4 DUCK ENABLE DUCK ENABLE MIC LINE MIC LINE CONTROL 2 DUCKS 3 2 DUCKS 4 MIC LINE MIC LINE CONTROL CONTROL 1 OR 2 DUCKS 3 1 OR 2 DUCKS 4 MIC LINE CONTROL 1 DUCKS 2 1 DUCKS 3 1 DUCKS 4 MIC LINE CONTROL 1 DUCKS 2 1 DUCKS 3 1 DUCKS 4 17 S zone System Configurations Using the S zone with Active Speakers DINING ROOM COCKTAIL LOUNGE Using the S zone with Passive Speakers KITCHEN kb A INPUT 1772 ln o E O0 Eu ba oe COCKTAIL LONGE E sauoz au1Jo ui 2574 xonp Jas 2D Indu Sz Jauupy gt auoz s pa12auuoo gt uo 1ndui Saul ol SI M Y 021243 y pub 1ndul aul sp ay pa12euuoo s 1 2 0 saxinos OIPND 104 aya gt 1ub4nD3sa4 ybnoAyy Aggoj woos aui ul 2 Ib3202 ay
20. NOW O3H31s ED 1 Nal ssvg ONOW O3H31s 318381 ssvg 123135 3NOZ 3WmIOA YOLINOW YOLINOW S3NOHd 50414119 NI INN QNO t NI3NIT awn p Y INOZ 3NOZ 23 2 504 1437 os ONO NI INN LINOZ gw SOd 1HDIY NI INIT 3Wmo Ren M3ISVW L gt Em 50414312 NI INN 730 2 GND ZNI INN SOd LHDIY Z NI INN 3NOZ ES ONO ZW See Se ee E messe fr NI SIN ZW ONOW A 2 NISOd 2310 L3NOZ 038315 1040 gek Whi e E SOd 1437 1 AND I v3NOZ SOd 1HOIM L NI INIT INOZ OND LIIW o 0 7 NI93N L IW oe ee ONOW A 2 NI SOd 12 L3NOZ 038315 Ou mm 3NmOA WIYL 143 6 ef ER Notes 23 Notes 24 Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com
21. Pole Ein geerdeter Stecker hat zwei flache Pole und einen dritten Erdungsstift Der breitere Pol oder der dritte Stift dient Ihrer Sicherheit Wenn der vorhandene Stecker nicht in Ihre Steckdose passt lassen Sie die veraltete Steckdose von einem Elektriker erset zen 10 Sch tzen Sie das Netzkabel dahingehend dass niemand dar ber laufen und es nicht geknickt werden kann Achten Sie hierbei besonders auf Netzstecker Mehrfachsteckdosen und den Kabelanschluss am Ger t 11 Ziehen Sie den Netzstecker des Ger ts bei Gewittern oder l ngeren Betriebspausen aus der Steckdose 12 berlassen Sie die Wartung qualifiziertem Fachpersonal Eine Wartung ist not wendig wenn das Ger t auf irgendeine Weise beispielsweise am Kabel oder Netzstecker besch digt wurde oder wenn Fl ssigkeiten oder Objekte in das Ger t gelangt sind es Regen oder Feuchtigkeit ausgesetzt war nicht mehr wie gewohnt betrieben werden kann oder fallen gelassen wurde NOP a FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION Pour viter tout risque d lectrocution ou d incendie ne pas exposer cet appareil la pluie ou a l humidit Pour viter tout risque d lectrocution ne pas ter le couvercle ou le dos du boitier Cet appareil ne contient aucune pi ce rem placable par l utilisateur Confiez toutes les r parations
22. a forma como si el cable de corriente o el enchufe est n da ados o si se han derramado l quidos o se ha intro ducido alg n objeto dentro de la unidad si esta ha quedado expuesta a la lluvia o la humedad si no funciona normalmente o si ha ca do al suelo Son Table of Contents Introduction S zone Features Controls and Functions Front Panel Layout Rear Panel Layout Designing an Installation Plan Connecting the S zone Connecting the S zone Inputs Connecting the S zone Zone Outputs Operating the S zone Using the S zone Input Section Set the Input for Stereo or Mono operation Using the Zone Assignment switches Using the VOLUME Control Using the Monitor Section Using the headphone Controlling the Zone Outputs Setting the Output level Setting the Zone Output EQ For Voice Setting the Zone Output EQ For Music Using the Ducker Setting The DUCK ENABLE switches Channel 1 DUCK ENABLE Channel 2 DUCK ENABLE CHANNEL 1 MASTER Usng the Ducker Switch Chart S zone System Configurations S zone Wiring Guide Specifications S zone Block Diagram Notes Copyright 2004 Samson Technologies Corp Printed October 2004 Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com 8 10 11 12 12 12 12 13 13 14 14 15 15 16 16 16 16 17 18 19 20 21 22 23 24 Introduction Congratulations on purchasing the S
23. amson S zone four channel stereo zone mixer Although this product is designed for easy operation we suggest you take some time out first to go through these pages so you can fully understand how we ve implemented a number of unique features The S zone is a professional quality 4 channel zone mixer that allows you to mix just about any audio signal includ ing those from microphones stereo CD and tape players video players and then lets you distribute an indepen dent mix to any of the four stereo zones Each of the input channels is assignable to any or all of 4 stereo zones outputs via easy to use LED backlit switches The micro phone inputs can be set to duck the zone inputs so that the background music automatically turns down when an announcement is made On each the S zone s outputs you ll find a convenient two band equalizer allowing you to adjust the overall tonal response of each zone A five segment LED bar VU meter is present on all outputs pro viding a visual display of the level of each zone Perhaps the most unique feature of the S zone is it s front panel monitor section The zone assignment switch headphone jack level control and internal super speaker allow you to monitor the signal that is playing in any zone directly on the S zone without having to physically be in the room that signal is playing in The handy scribe strip for both the inputs and outputs make it easy to label the connect ed gear and the room
24. d speakers you need to first decide where you will place your power amplifier If the speakers in a particular sound zone are less than 100 feet away you can locate your power amplifier in the same rack as the S zone and wire the speaker wires from the amplifier to your sound zone NOTE This type of wiring is known as home run wiring since you are making direct connection from the amplifiers in the equipment rack to the speakers loicated in the sound zone room In this case you would connect the S zone s Zone Output to the power amplifier input and the run the speaker wires to the passive speakers If the speakers in a particular sound zone are further than 100 feet you should consider placing the amplifier in the same room as the sound zone In this case you will run balanced line level signal from the 5 zone s Zone Output over the long wire run to the input of the power amplifier located in the sound zone Using Active Speakers If you are going more than 100 feet you can also consider using active speakers speakers with built in power When using active speakers you can connect the S zone s outputs using the balanced line level signals In this case you will run line level signal from the S zone s Zone Output over the long wire run to the input of the powered speaker located in the sound zone For more information on wiring for balanced signals see the wire guide on page 20 of this manual Setting up the S zone Quick Start W
25. d a cook paging a waitress to pick up an order The S zone can accomplish all of this easily Creating the Audio Zones You can create separate audio environments using the S zone s four output channels Obviously or not perhaps not so obviously we call an output a zone on the unit but a zone is also the area where you want to have sound So think about where you want to distribute the sound The S zone can accomplish all of this easily In addition the S zone let s you easily connect a remote control level for each of the zones so you can control the volume in the room even if the audio equipment is located somewhere else Now take some time to consider where you need to have sound in your particular installation After you have decided where you need to create sound zones you can consider your speaker selection but first decide where you are going to locate your equipment rack Locating Your Equipment Rack Since the S zone is standard 19 inch rack mount device you should consider using an equipment rack such as the Samson SRK8 To select a good location for your equip ment rack you should consider several points including the proximity to each of the sound zones if the users need to access the gear like to change CD s or to adjust a volume level and if you have a convenient location to the electrical service to name a few You will need to consider the length of wire runs and routing necessary to make the connections from
26. e recommend that you take the time to read through this manual and then use it as a reference guide If you are installing your first system you should read through the section Designing an Installation Plan on page 6 before you start connecting your S zone If you re a professional installer you can skip over that section and if you want to get started running some signals through your inputs and outputs you can follow the following quick start example Setting up your S zone is a simple procedure which takes only a few minutes The following section describes the set up and operation of a simple installation using the S zone with a CD player and paging microphone NS SELF POWERED SPEAKER SPEAKER O CD PLAYER PAGING MIC In this set up example a paging microphone connected to the S zone s CHANNEL 1 input and a CD player connected to CHANNEL 3 The 5 zones ZONE OUTPUT 1 is connected to a pair of active self powered speakers If you are using passive speakers the S zone s ZONE OUTPUT should be connected to the power amp input e Remove all packing materials save them in case of need for future service and decide where the unit is to be physically placed it can be used freestanding or mounted in a standard 19 rack The S zone requires only a single rack space sure the power
27. ez ce que le cordon secteur soit libre en particulier sa sortie du boitier 11 D connectez l appareil du secteur en pr sence d orage ou lors de p riodes d inutilisation prolong es 12 Consultez un service de r paration qualifi pour tout dysfonctionnement dom mage sur le cordon secteur baisse de performances exposition la pluie pro jection liquide dans l appareil introduction d un objet dans le boitier etc naupwn PRECAUCION Para reducir el riesgo de incendios o descargas no permita que este aparato quede expuesto a la lluvia o la humedad Para reducir el riesgo de descarga el ctrica nunca quite la tapa ni el chasis Dentro del aparato no hay piezas susceptibles de ser reparadas por el usuario Dirija cualquier reparaci n al servicio t cnico oficial El s mbolo del rel mpago dentro del tri ngulo equil tero pretende advertir al usuario de la presencia de voltajes peligrosos no aislados dentro de la carcasa del producto que pueden ser de la magnitud suficiente como para constituir un riesgo de descarga el c trica a las personas El s mbolo de exclamaci n dentro del tri ngulo equil tero quiere advertirle de la existencia de importantes instrucciones de manejo y mantenimiento reparaciones en los documentos que se adjuntan con este aparato Instrucciones importantes de seguridad 1 Lea todo este manual de instrucciones antes de comenzar a usar la unidad 2 Conserve estas instrucciones para cualqu
28. f Channel 1 the level of the inputs connected to Channel 3 and 4 will automatically be lowered by the amount set by the DUCK TRIM control Once there is no input present on Channel 1 the level of the inputs connected to Channel 3 and 4 will be returned to their normal level Therefore you can con nect a microphone to Channel 1 s input and a CD player to Channel 3 s input press the Channel 1 DUCK ENABLE and whenever you speak into the microphone the back ground music will be lowered When you stop speaking the background music will returned to the original level You can set the DUCK ENABLE on Channel 1 individually or together with the Channel 2 DUCK ENABLE if you need to have two microphones ducking the background music O DUCK TRIM MIC TRIM m cinto O LINE 2 IN MIC 2 IN O n LT ROT LINE2 IN MIC2IN DUCK ENABLE MIC TRIM CH 1 Ducks 2 3 9 LOT 1 MASTER LINE 1 IN 3 IN DUCK ENABLE Channel 2 DUCK ENABLE When the Channel 2 DUCK ENABLE switch is pressed in when ever signal is present at the input of Channel 2 the level of the inputs connected to Channel 3 and 4 will automatically be lowered by the amount set by the DUCK TRIM control Once there is no input present on Channel 2 the level of the inputs connected to Channel 3 and 4 will be returned to their normal level Therefore you can con nect a microphone to Channel 2 s input and a CD player to Channel 3 s input press the Chan
29. icular room This concept is known as gain staging and it is the most important part of getting a good sound Ideally you want the S zones Output level meter to read about O dB This will give you the best signal to noise performance and clean est sound So try to adjust the Zone Output Volume controls so that the VU Meter reads about 0 dB Then adjust the vol ume control on the amplifier or speaker to a the desired listen ing level Now that you have the basic system operation level set you can get a level setting for your microphone connected to the S zone s CHANNEL 1 input While speaking into your microphone slowly raise the VOLUME control knob on CHANNEL 1 to the 0 posi tion e Atthis point if the microphone is very low in volume raise the level of the rear panel MIC TRIM control If the microphone is very high in volume lower the level of the rear panel MIC TRIM control You want to set the MIC TRIM so that you have a good range of level con trol on the CHANNEL 1 VOLUME control without add ing any distortion Setting up the S zone Note The MIC TRIM level control allows you to set the best sig nal to noise level Very simply put this means the hottest mic level with the least amount of distortion If the MIC TRIM is too low the mic level may not be loud enough If the MIC TRIM is set too high the channel will distort Use your ears to set the MIC TRIM to the highest point before you hear any distortion
30. ier consulta en el futuro Cumpla con todo lo indicado en las precauciones de seguridad Observe y siga todas las instrucciones del fabricante Nunca utilice este aparato cerca del agua o en lugares h medos Limpie este aparato solo con un trapo suave y ligeramente humedecido No bloquee ninguna de las aberturas de ventilaci n Instale este aparato de acu erdo a las instrucciones del fabricante 8 No instale este aparato cerca de fuentes de calor como radiadores calentadores hornos u otros aparatos incluyendo amplificadores que produzcan calor 9 Noanule el sistema de seguridad del enchufe de tipo polarizado o con toma de tierra Un enchufe polarizado tiene dos bornes uno m s ancho que el otro Uno con toma de tierra tiene dos bornes normales y un tercero para la conexi n a tierra El borne ancho o el tercero se incluyen como medida de seguridad Cuando el enchufe no encaje en su salida de corriente llame a un electricista para que le cambie su salida anticuada 10 Evite que el cable de corriente quede en una posici n en la que pueda ser pisado O aplastado especialmente en los enchufes recept culos y en el punto en el que salen de la unidad 11 Desconecte de la corriente este aparato durante las tormentas el ctricas o cuando no lo vaya a usar durante un periodo de tiempo largo 12 Dirija cualquier posible reparaci n solo al servicio t cnico oficial Deber hacer que su aparato sea reparado cuando est da ado de algun
31. ith a damp cloth Do not block any of the ventilation openings Install in accordance with the manu facturers instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polar ized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or third prong is provided for your safety When the provided plug does not fit your outlet consult an electri cian for replacement of the obsolete outlet 10 Protect the power cord from being walked on and pinched particularly at plugs convenience receptacles and at the point at which they exit from the unit 11 Unplug this unit during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified personnel Servicing is required when the unit has been damaged in any way such as power supply cord or plug damage or if liquid has been spilled or objects have fallen into the unit the unit has been exposed to rain or moisture does not operate normally or has been dropped SOW Or NIS ACHTUNG Um die Gefahr eines Brandes oder Stromschlags zu verringern sollten Sie dieses Ger t weder Regen noch Feuchtigkeit aussetzen Um die Gefahr eines Stromschlags zu verringern sollten Sie weder Deckel noch R ckwand des Ger ts en
32. nect a mic and line input to Channel 1 and Channel 2 at the same time follow the wiring diagram below Mic Input Euroblock to Female XLR Common 1 Hot 2 N 2 i f e O CI P i H OF W cold N 1 Solder Points End View 4 2 O Common Cold 3 uz GI E Stereo Line Input Euroblockto Two RCA Tip signal Mum S F 2 O Tip signal Sleeve ground 3 e r 1 1 Y Right Line Input Sleeve ground n Tip signal Tip Gigna Sleeve ground yo EY PT ei Left Line Input D Sleeve ground Mic Line Input Wiring for Channel 1 and 2 Connecting the S zone Connecting the S zone Zone Outputs After you have designed a plan for your installation you will need to connect the S zone s Zone Outputs to your power amplifiers or powered speakers You can wire the S zone s Outputs for balanced or unbalanced It is highly recommended that you use balanced wiring when you are running long runs of cable let s say over 20 feet When you run a balanced wire you benefit from CMR Common Mode Rejection which reduces the possibility of noise and hum from other interfering electrical device Regard less of the sound source it s important to connect the outputs properly To connect the Zone Outputs to a balanced input using standard XLR connectors follow the wiring diagram below Zone Output Balanced Line Euroblock to Male XLR Common 1
33. nel 2 DUCK ENABLE and whenever you speak into the microphone the back ground music will be lowered When you stop speaking the background music will returned to the original level You can set the DUCK ENABLE on Channel 2 individually or together with the Channel 1 DUCK ENABLE if you need to have two microphones ducking the background music TRIM CH 4 Ducks DUCK TRIM MIC TRIM LOT BOT LINE 2 IN 2 IN 000000 LOT ROT LINE2 IN MIC IN puck ENABLE 1 Ducks 23 4 CH 2 DUCKS 3 4 0 CHANNEL 1 MASTER If you are using a microphone or line level signal to duck the level of the inputs connected to Channels 2 3 and 4 you can use the CHANNEL 1 MASTER switch so that Chan nel 1 will have priority over all the other inputs With the CHANNEL 1 MASTER selected when signal is present at the input connected to Channel 1 all other inputs will be lowered by 10dB DUCK TRIM 4 Ducks OU Operating the S zone Using the Ducker continued You can set the S zone s ducking matrix to seven settings The diagram below shows the possible settings for using the DUCK ENABLE and MASTER switches Follow the grid below and set the S zone Ducker switches to the positions that are best suited for your application CHANNEL 1 CHANNEL 2 CHANNEL 1 DUCKS 3 4 DUCKS 3 4 MASTER CHANNEL 1 CHANNEL 2 CHAN
34. ol with 12 dB of cut or boost at 10kHz OUTPUT METER Six segment LED meter display ing the level of the ZONE 1 OUTPUT with 20 to 14 dB indicators STEREO MONO switch This switch is used to select either stereo or mono operation on the ZONE 1 OUTPUT SCRIBE STRIP Convenient area for marking the ZONE OUTPUT allowing you to notate the room or area the zone is feeding LOW Low frequency equalizer rotary control with 12 dB of cut or boost at 100Hz ZONE OUTPUT 2 ZONE 2 OUTPUT with the same knob and switch complement as ZONE 1 OUTPUT ZONE OUTPUT 3 ZONE 3 OUTPUT with the same knob and switch complement as ZONE 1 OUTPUT ZONE OUTPUT 4 ZONE 4 OUTPUT with the same knob and switch complement as ZONE 1 OUTPUT POWER switch Use this switch to power the unit on and off Rear Panel Layout Controls and Functions al SE 14 pu AC INPUT FUSE HOLDER Connect the supplied 3 pin IEC power cable here ZONE 1 OUTPUT This connector includes the Zone 1 Left and Right balanced output connections along with the connections for the REMOTE volume con trol ZONE 2 OUTPUT This connector includes the Zone 2 Left and Right balanced output connections along with the connections for the REMOTE volume control ZONE 3 OUTPUT This connector includes the Zone 3 Left and Right balanced output connections along with the connections for the REMOTE volume
35. onal security cover kit prevents S Zone settings from accidentally being altered A remote Volume Control for each Zone Output up to 3000 feet in distance is possible using standard All steel chassis makes the S zone eminently road 50k 100k linear taper potentiometer and two con worthy ductor shielded wire Three year extended warranty e Microphone Duck switch on Channel 1 and Channel 2 which when turned on allow any signal from the microphone inputs like an announcement or page to automatically lower the background music level e The S zone features a unique front panel monitor section including a zone assignment switch head phone jack level control and internal super speaker allowing you to monitor the signal that is playing in any zone directly on the S zone without having to physically be in the room that the signal is playing in Co ntrols and Functions Front Panel Layout 2 0 SAMSON INPUT SECTION 1 10 VOLUME Rotary control used to adjust the level of signal source connected to channel 1 ZONE 1 When the LED Backlit switch is pressed in the switch lights red and the input is assigned to ZONE 1 ZONE 2 When the LED Backlit switch is pressed in the switch lights green and the input is assigned to ZONE 2
36. pecifications 6000 XLR balanced 22K O 14 dBV balanced 24 dBV 60 dB 26 dB 17 dBV max 200 Ohms 100 Ohms 96 dB lt 02 gt 52 dB Mic 12 VDC 15 dB at 100 Hz 15 dB at 10 kHz 6 PIN Euroblock 9 PIN Euroblock USA Canada 120 V 60 Hz U K Australia 240 V AC 50 Hz Europe 230 AC 50 Hz 100 120 V AC 250 mA slow blow 200 240 V AC 125 mA slow blow 5 Watts Standard IEC receptacle with fuse 19 in w x 7 5 d x 1 75 h 482 mm w x 190 d x 44 h 5 1 Ib 2 31 kg S zone Block Diagram ENId LIV NIW GND 88001 SITOAS 13437 310438 93N 14319 INOZ 50414319 INOZ 13319 INOZ DON v INOZ SOd LH9IY INOZ QNO LHOIY b INOZ SLIOAS p 13131 310W38 t 13 31 310W3H t 133131038 D3N 1437 INOZ 50414316 3NOZ GND 1331 INOZ DAN INOZ SOd IHN INOZ QN9 LH9IY INOZ SIOAS 133131038 13A31 1313131038 SIN 13317 3NOZ SOd 14312 3NOZ OND 13317 3NOZ DON Z INOZ 504 LH9IY Z INOZ 0213 Z INOZ SLIOAS 2 73431 SLOWSY u3dlM 2 734371 SLOWSY 2 13431 310 39 93N 14311 INOZ SOd 1331 1 INOZ 1331 1 INOZ 1 INOZ SOd IHR L INOZ IH9ld 1 INOZ SLIOAS 113137 310W38 13 31 310W38 I 133131038 318381 ssva ONOW 038315 318341 SSV9 O
37. rces to the S zone s inputs You may want to connect several devices like microphones for paging and other line level devices like CD DVD MP3 TAPE or Karaoke players or perhaps a radio tuner Regardless of the sound source it s important to connect the inputs properly Follow the section and wiring diagrams below to connect your input sources The microphone inputs accept low impedance 100 to 600 ohms balanced or unbalanced microphones Connect your microphones to inputs channel 1 and 2 us ing the following wiring guide Note The S zone always provides 15 volts of phantom power to the microphone inputs so you ll have no problem using just about any condenser microphone Dynamic microphones can be connected as well Mic Input Euroblockto Female XLR Common Hot 2 Cold 3 Solder Points End View A LoT fr LINE 1 IN MIC 4 IN Mic Input Wiring for Channel 1 and 2 E 10 E Next connect your line inputs to channels 2 using the wir ing guide below These inputs are set to accept 10 dBV levels which is the standard for devices like most CD and DVD players LINE niput Lurupiuen tu Two nen Ol o Ol Tip signal 5 Sl Tip signal Sleeve ground 52 ma O Y 5 0 P G Right Line Input A 4 Sleeve ground Tip signal Tip signal Sleeve ground Y Left Line Input 1 Sleeve ground Line Inp
38. s the S zone is feeding For easy installation all the S zone connections are made with standard Euroblock connection strips In this manual you ll find a detailed description of the features of the S zone as well as a guided tour through the front and rear panels step by step instructions for using the unit suggested applications and full specifica tions You ll also find a warranty card enclosed please don t forget to fill it out and mail it so that you can receive online technical support and so we can send you updated information about other Samson products in the future Also be sure to check out our website www samsontech com for complete information about our full product line With proper care and adequate air circulation your S zone will operate trouble free for many years We recom mend you record your serial number in the space pro vided below for future reference Serial number Date of purchase Should your unit ever require servicing a Return Authorization number RA must be obtained before shipping your unit to Samson Without this number the unit will not be accepted Please call Samson at 1 800 3SAMSON 1 800 372 6766 for a Return Authorization number prior to shipping your unit Please retain the original packing materials and if possible return the unit in the original carton and packing materials S zone Features 6 x 2 In
39. t fernen Im Innern befinden sich keine die vom Anwender gewartet werden k n nen Uberlassen Sie die Wartung qualifiziertem Fachpersonal Der Blitz mit Pfeilspitze gleichseitigen Dreieck soll den Anwender vor nichtisolierter gefahrlicher Spannung im Ger teinnern warnen Diese Spannung kann so hoch sein dass die Gefahr eines Stromschlags besteht Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender auf wichtige Bedienungs und Wartungsanleitungen aufmerksam machen die im mit gelieferten Informationsmaterial beschrieben werden Wichtige Sicherheitsvorkehrungen 1 Lesen Sie alle Anleitungen bevor Sie das Ger t in Betrieb nehmen 2 Bewahren Sie diese Anleitungen f r den sp teren Gebrauch gut auf Bitte treffen Sie alle beschriebenen Sicherheitsvorkehrungen Befolgen Sie die Anleitungen des Herstellers Benutzen Sie das Ger t nicht in der N he von Wasser oder Feuchtigkeit Verwenden Sie zur Reinigung des Ger ts nur ein feuchtes Tuch Blockieren Sie keine Bel ftungs ffnungen Nehmen Sie den Einbau des Ger ts nur entsprechend den Anweisungen des Herstellers vor 8 Bauen Sie das Ger t nicht in der N he von W rmequellen wie Heizk rpern W rmeklappen Ofen oder anderen Ger ten inklusive Verstarkern ein die Hitze erzeugen 9 Setzen Sie die Sicherheitsfunktion des polarisierten oder geerdeten Steckers nicht au er Kraft Ein polarisierter Stecker hat zwei flache unterschiedlich breite
40. two or more inputs to different Zone Outputs you will hear the different signals in the Monitor speaker or headphones as you change the ZONE SELECT switch Operating the S zone Controlling the Zone Outputs The S zone has four output zones which are controlled using the four ZONE output strips located on the right side of the front panel Each Zone Output has its own level control output meter and two band equalizer You can adjust the overall volume using the Level control and even apply some basic equalization to contour the frequency response of the speaker system when necessary You can also add a label for the zone name using a grease pencil or removable label on the Zone Output Scribe Strip ZONE 1 OUTPUT VOLUME 26 sen UY 07 124 Ka NA 47 E amp Uy X 7 Zone Output Section Setting the ZONE OUTPUT for Stereo or Mono Operation The S zone is a stereo device and thanks to the STEREO MONO switch you can set any of the ZONE OUTPUT s to send either stereo or mono signals In many installations itis desirable to run mono sound zones since the sound is being distributed through several speakers and there is no one position In other situations like around a cocktail lounge perhaps a disco karaoke dance floor in a restau rant or an outside patio in a home installation you may want to run a stereo sound zone ZONE 1 OUTPUT o Zone Output Stereo Mono switch Setting the Output level It
41. ut Wiring for Channel 1 and 2 Now connect your line inputs to channels 3 and 4 using the wiring guide below Channel 3 and 4 Stereo Line Input Euroblock to Two RCA Tip signal Tip signal 2 gt Channel 3 Right Line Input 1 Sleeve ground Sleeve ground Tip signal 2 H Sleeve ground 5 E E Channel 3Left Line Input Li 2 A Y lt lt Sleeve ground u AS 2 Tip signal Sleeve ground Tip signal A Y T CT 0 gt Channel 4 Right Line Input 1 Sleeve ground Tip signal Tip signal Sleeve ground Sleeve ground Line Input Wiring for Channel 3 and 4 These inputs are set to accept 10 dBV levels which is the standard for devices like most CD and DVD players Connecting the S zone Zone Inputs continued If you need to connect one or two microphones along with more than two line level input sources you can use the mic and line inputs for channel 1 and 2 at the same time You should only do this if you need more than two line inputs When you connect both the mic and line to the same input you will not be able to control the level of the two input sources individually So if possible in this situa tion select a line level device that has its own output level control You can use that level control to help you balance between the line level and the mic connected to the same input To con
42. zone If you do not have an analyzer use your ears and adjust the equalization to a setting that sounds good to you Operating the S zone Using the Ducker The S zone allows you to set up a sophisticated music and paging system where the background music will auto matically lower when an announcement is made This automatic level control is known as Ducking The S zone s ducker can operate with either one or two microphones al lowing two zone paging Plus you can even use a line level source to duck another line level source for example ap plications like one CD player audio advert ducking another playing background music Setting The DUCK ENABLE switches The S zone can use either Channel 1 2 or even Channel 1 and 2 to duck the line inputs connected to channel three and four You can even set Channel 1 as a Master channel which will duck the line inputs connected to Channel 3 and 4 and the mic and or line connected to Channel 2 The next section details the operation of the DUCK EN ABLE switches located on the right side of the S zone s rear panel O MIC TRIM TRIM LOT ROT o LINE 2 IN Mice IN Q 4 DUCKS 4 E 1 A LoT RO Tos LOT R To LINE2 IN e IN DUCK ENABLE LINE 1 IN MIC 3 IN DUCK ENABLE Channel 1 DUCK ENABLE When the Channel 1 DUCK ENABLE switch is pressed in when ever signal is present at the input o
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