Samson Cque 8 Stereo Amplifier User Manual
Contents
1. 0 10 4204 AY PUD 2041 SIY O41UO2 0 JSI D20A 21 SMOJ D SIU D20A 12043 BULYIDG au AAI s o4ju02 32NV TV 8 241 104 05 apOW JaUUDY I Z 0118s sig an2 D3fNI 121 SDW Sg anb I o1 1 12 sajosuo au pa12auuo si 2 DIOA NI VW 58 anb 5 ay o1 spues Kupi Ixnp SJaXIUJ JY DIA JUAS BJD S D20A PUD 215 209 uoissas D20A D 10 euoudppau buiMoj oJ au burpeg pea N Z x ES lt 2 lt Ja O uj 4 99 383 OJO U 5 CC LL OZuals rg 5 1 0 0 8L 8L 1 0 Bonviva gii 1 8 4 NOSMHWS TES NIVIA 2 4 24 rar ANr1 TANVWd 449 NO LAdNI ANI LHS ANY 1447 OL 12 Ceque 8 Connections CUE MIX SET UP FOR MULTITRACK RHYTHM SECTION RECORDING XIUJ D 10J JDA 129 10 SIY dn UDIDISNUW JSI D20A AY SMOJ D SIU Dn IA IPUI PUD 4901 AAA AY s o41u02 3 241 1292. Parallel to Main Input Matches Main Input 10 k Ohms unbalanced 21 dBu unbalanced 6 Segment LED 24 to OL load compensating 2 1 4 TRS Left Right Headphone outputs per Channel 140 mW at 32 ohms 385mW at 66 ohms 8 Ohms EQ Shape Switch Volume Control 10 Hz to 32 kHz 0 3 dB gt 90 dB unweighted 22 Hz to 22 kHz 0 008 typ 4 dBu 1 kHz 105 125 VAC 60 Hz 215 254 VAC 50Hz Standard IEC receptacle with fuse 29 Watts Max 1 3 4 44 5 mm 19 482 6 mm 8 1 2 217 mm 5 5lbs 2 5 kg 8lbs 3 6 kg 16 Ceque 8 Block Diagram 123fnNI 2 _ ic gm SLNdLNO 1337 a m HO H 2 1S STEN LHOIW YSLAW 13A33 13NNYH2 ONON 14337 NIVIN J BZ LalwN 4SLSVWA UlJO2 UD 291 UOSUJ8ES MMM LOANI SANOHd LnadLno LndNi SNOILIDdIJNNOO 17 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
3. Safety Instructions 1 Please read all instructions before operating the unit 2 Keep these instructions for future reference 3 Please heed all safety warnings 4 Follow manufacturers instructions 5 Donotuse this unit near water or moisture 6 Clean only with a damp cloth 7 Do not block any of the ventilation openings Install in accordance with the manufacturers 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 polarized 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 electrician 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
4. s MAIN Right input Now you can use the BALANCE control to adjust the level difference between the monitor mix and the vocal channel By using a combination of the MAIN VOLUME and BAL ANCE controls you can dial up the perfect mix directly on the C que 8 Ceque 8 Connections LINKING MULTIPLE C eque 8 s Any number of Ceque 8 s can be linked together daisy chained allowing you to monitor an input signal over more than twelve sets of headphones or to give individual musicians more control over their own headphone mix To do this simply follow these basic steps Make a connection between one Ceque 8 5 Left Right Link outputs and the next one s Left Right Main inputs BALANCED SIGNAL FLOW SIGNAL FLOW LINK OUTPUT SAMSON 2 gt tee EN POWER AC IN E 4 4 M E iv 7 7 020 LEFT RIGHT BALANCED Because the Ceque 8 Stereo Link output jacks are electronically balanced we recommend the use of 3 conductor cable and 1 4 TRS Tip Ring Sleeve connectors Even when several Ceque 8 s are linked together this way there is no loss of power or audio fidelity every Channel on every Ceque 8 will sound just as loud and clear as if it were the only unit connected The status of the front panel Stereo 2 CH buttons affects only that unit and has no effect on any subsequent linked units 10 Ceque 8 Connections HEADPHONE IMPEDANCE AND SENSITIVITY RATINGS Virtually all headpho
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6. D to the Ceque 8 s rear panel Left Right LINE INPUT jacks Raise the master VOLUME until the main meter reaches 18 to 12 dB Connect a set of headphones to Channel 1 and slowly turn the channel s Volume clockwise until you hear the desired level WARNING Because the Ceque 8 is capable of generating extremely high volume levels always start with the channel Volume knob at minimum and then slowly turn it up Operating the Ceque 8 SETTING UP THE C que 8 Continued Repeat the previous step for all Channels that have headphones connected making sure to start the VOLUME knob completely counterclockwise and then slowly raising it until the desired level is achieved If you have connected different models of headphones to the various Channel Headphone jacks you may find that some require more gain than others to achieve the same volume This kind of disparity will occur if the various headphones have different impedances The lower the impedance the louder the headphone will sound compared to another higher impedance headphone at the same VOLUME setting Another factor affecting headphone loudness is called sensitivity This is generally measured by deter mining the decibel dB level generated by 1 mW of power input The higher the dB rating the louder the headphone See the Reference chart on page 13 of this manual for more details achieve optimum signal to noise ratio the master VOLUME should generally set a
7. H 1 SAMSON Si OC t D we o oo MEL SHAPE OUT MM I c AA RE US coc A SR 5 c SHAPE OUT C OUT gt Q CH 2 INJECT 4 CHANNEL HS animar s d cum CH HEADPHONE AMP 4 CHANNEL HEADPHONE AMP Owners Manua WV Un e 5 A Safety Instructions Caution To reduce the hazard of electrical shock do CAUTION not remove cover or back FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE FUSE No user serviceable parts inside Please refer all ser ATTENTION vicing to qualified personnel UTILISER UN FUSIBLE DE RECHANGE DE M ME TYPE WARNING DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION RISK OF ELECTRIC SHOCK RISQUE DE CHOC ELECTRONIQUE DO NOT OPEN NE PAS OUVRIR WARNING To reduce the risk of fire or electric shock do not expose this unit to rain or moisture 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 suffi cient 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 impor tant operating and maintenance servicing instructions in the literature accompanying the product Important
8. HANNEL VOLUME HEADPHONE AMP HEADPHONE CHANNEL 3 The same knob and switch compliment is duplicated for Channel 3 MAIN POWER SWITCH When turned on activates the C que 8 MASTER INJECT Stereo TRS front panel input for injecting a signal into the main mix 11 2CH STEREO SWITCH Changes the global operat ing mode from normal stereo to 2 channel 12 HEADPHONE CHANNEL 2 The same knob and switch compliment is duplicated for Channel 2 13 HEADPHONE CHANNEL 4 The same knob and switch compliment is duplicated for Channel 4 STACKING BUMPERS Sleek and highly functional the rubber bumpers allow you to stack several que 8 s or other Samson C class units Angled feet are also included providing a convenient tilting mechanism that allows easy operation on worksta tions or desktops 22 REAR PANEL LAYOUT POWER AC IN 18 V MADE IN CHINA AC INLET AC power supply connector is here CHANNEL 4 OUTPUT Rear panel headphone out put for Channel 4 CHANNEL 3 OUTPUT Rear panel headphone out put for Channel 3 CHANNEL 2 OUTPUT Rear panel headphone out put for Channel 2 Controls and Connectors LEFT RIGHT LEFT RIGHT BALANCED BALANCED CHANNEL 1 OUTPUT Rear panel headphone output for Channel 1 F LINK OUTPUTS Outputs that are tied to the main input for linking to another headphone amp or other device LINE INPUT The main signal input to the head
9. Y EU oec genb D NOSMWS T3NVd HV3H NO LAdNI OL 13 Stacking and Tilting the C que 8 Stacking the C que 8 You can stack one C cue 8 or any other Samson C Class units on top of each other by simply lining up the bumpers Important Note When stack ing the C que 8 be sure that only the bottom unit has the tilting feet installed o Remove the bottom screw from right front bumper Identify the right tilting foot by the locating R marking on the inside top o Position the angled foot under the right bumper as shown in the drawing Installing the Tilting Feet SAMSON You can install the tilting rubber feet included C que 8 with your C que 8 so that you can set the unit at a comfortable operating angle on a worksta tion or desktop Follow the simple instructions below to install the tilting feet L1 L1 C2 C2 C2 CC 4 CHANNEL HEADPHONE AMP Remove the bottom screw from right front bumper o Identify the right tilting foot by the locat ing R marking on the inside top Position the angled foot under the right bumper as shown in the drawing Use the included 3 x 16mm screw to attach the foot Repeat steps above for the front left bumper 14 Ceque 8 Wiring Guide Unbalanced 1 4 Connector Signal Signal Tip signal Ground Sleeve ground Balanced TRS 1 4 Conn
10. alization con C tour for each channel When the EQ SHAPE switch is WZ in the LED will illuminate indicating the EQ SHAPE OUT circuit is engaged The EQ SHAPE circuit provides a pre set equalization curve designed to sound good on FN most program music In this mode the low frequen cies have a 6dB boost at 100Hz and the high frequen i boosted 6dB at 12kHz When the EQ SHAPE switch is in the out position frequency response of the channel is flat VOLUME Control o 10 CH 2 VOLUME The channel VOLUME control is used to adjust the channel headphone output The volume control will adjust the level of the front panel headphone outputs as well as that channel s rear panel head phone outputs CHANNEL LEVEL Meter Each Ceque 8 Channel has 6 segment LEDlevel meter which monitors the output of the channel in Decibels dBs 24 toOL overload If the LEVEL meter displays an OL signal then turn down the channel VOLUME and if necessary also turn down the master VOLUME Operating the Ceque 8 STEREO AND TWO CHANNEL MODES All of the Ceque 8 s four channels can be set to operate in two different modes Stereo and 2 Channel Stereo Mode Stereo mode is a normal operating mode where all mix inputs from MAIN and INJECT maintain their stereo image throughout the signal path to each headphone output The BALANCE control is used to adjust the stereo image between the Left and Right side To desig
11. ch Each headphone output has its own individual Shape Circuit Level Meters and Level control Special output jacks on the rear panel allows any number of Ceque 8 units to be linked together with no loss of signal The Ceque 8 can be used in a wide variety of applications including recording studios teaching labs broadcast environments and for live performance In this manual you ll find a more detailed description of the features of the Ceque 8 as well as a guided tour through the front and rear panels step by step instructions for using the Ceque 8 a reference chart that gives impedance and sensitivity rat ings for a number of popular headphone models and full specifications You ll also find a war ranty 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 With proper care and adequate air circulation your Ceque 8 will operate trouble free for many years We recommend you record your serial number in the space provided 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 t
12. dropped Table of Contents Introduction Ceque 8 Features Controls and Connectors Front Panel Layout Rear Panel Layout Operating the Ceque 8 Setting Up the Ceque 8 Ceque 8 Master section Stereo and Two Channel Modes Ceque 8 Channels Ceque 8 Connections Linking Multiple Ceque 8 s Headphone Impedance and Sensitivity ratings Cue Mix Set up for Multitrack Vocal Recording Cue Mix Set up for Multitrack Rhythm section Recording Stacking and Tilting the Ceque 8 Ceque 8 Wiring Guide Specifications Block Diagram Copyright 2001 Samson Technologies Corp Printed June 2002 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 15 16 17 Introduction Congratulations on purchasing the Samson Ceque 8 Headphone Amplifier Although this unit 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 Ceque 8 is a compact high quality device that allows you to monitor any stereo or monophonic source signal balanced or unbalanced over as many as twelve separate headphones Providing unusually high power levels and superb audio fidelity the Ceque 8 is compatible with virtually all popular headphone models Front panel controls include a Master Input Level con trol and Stereo 2 Channel swit
13. ector Signal ring Tip signal Signal tip pau Ring signal Signal tip _ n Y ES odes m Sleeve Insert Cable 1 4 TRS connector to two 1 4 can be used to connect a stereo signal to the Master Inject ip Sleeve common Right ring 7 Left tip Left tip Ring right Left Channel 7 Right ring Common N A COMMON common Sleeve common ip Right Channel XLR Balanced Wiring Guide Hot Common Common 1 Hot 2 Hot 2 Common 1 Common Hot End View Solder Fointe XLR 15 Specifications Master Section Rear Panel Input Impedance Max input level CMRR Master Section Front Panel Master Volume control Master Level Meters Master Inject Controls Link Output Connectors Max Output Level Channels Impedance Max input level Level Meters Outputs Max output level Impedance minimum Controls Global Specifications Frequency response Noise THD Power Supply Mains Voltages USA Canada Mains Voltages Europe Power Inlet Power Consumption Physical Dimensions Net Weight Shipping Weight 2 TRS Balanced 1 4 Left Right or Left mono 15 k Ohms balanced 26 dBu balanced Min 40dB gt 55 dB 1 kHz 0 10 6 Segment LED 24 to OL 1 4 TRS jack Left Right ST 2CH Switch Volume Control Balance Control 2 1 4 TRS Balanced Left Right
14. he original packing materials and if possible return the unit in the original carton and packing materials Ceque 8 Features The Samson Ceque 8 headphone amplifier utilizes the latest technology in gain management design Here are some of it s features Four channel headphone mixer amplifier providing individual controls each channel Ideal digital audio workstations stage and studios Dual headphone outputs one rear plus one front panel output per channel allowing a total of eight head phones connected at the same time Maximum output power on each channel regardless of different headphone impedances Left and Right Line inputs for master stereo bus on balanced TRS Tip Ring Sleeve 1 4 phone tors Inject input on TRS Tip Ring Sleeve unbalanced stereo phone connector allowing for the insertion of an additional stereo signal that is mixed with the stereo Line input for more me mixing 2 Channel Stereo mode switch configures the C que 8 to operate in traditional stereo mode in 2 Channel mono mode Balance controls pan in Stereo mode the level balance between the Line and Inject inputs in 2 Channel mode EQ Shape circuit on each channel provides a music contour equalization curve that boosts the low and high frequencies of the headphone output Each channel has six segment LED Output meter with range of 24 to cli
15. n a monitor mix in the Stereo mode follow these steps Press the ST 2CH switch to the OUT position You ll notice the switch LED is not illuminated indicating that the main input is in STEREO mode Make a Stereo connection from your mixer s auxiliary or bus outputs to the main Left and Right Line inputs on the Ceque 8 s rear panel In the Stereo mode the BALANCE control adjusts the loudness between the left and right headphone outputs Mixing Signals in 2 Channel Mode In 2 Channel mode the MAIN left and right inputs and the INJECT left and right inputs are summed to a common mono signal that is present on all of the C que 8 s headphone outputs The BALANCE control is now used to adjust the volume difference between the left and the right inputs In a recording situation you can use the 2 Channel mode to make a More Me cue mix letting you adjust the volume of the mix directly on the C que 8 To design a monitor mix in the 2 Channel mode follow these steps Press the ST 2CH switch to the IN position You ll notice the switch LED is now illuminated indicating that the Ceque 8 is in 2 Channel mode Create mono monitor mix on one of your mixer s auxiliary sends and make a connection from that aux send output to the MAIN Left input on the Ceque 8 s rear panel Use your mixer s direct output or another aux send to route the signal of the lead vocal channel and make a connection from that output to the Ceque 8
16. nes that terminate in a stereo 1 4 plug can be used with the Ceque 8 Headphone Amplifier This chart provides a partial listing of some of the more popular models along with their impedance and sensitivi ty ratings As described on page 7 of this manual headphones with lower impedances or higher sensitivity will sound louder as compared to other higher impedance or lower sensitivity headphones at the same channel Volume setting Samson Technologies has no connection with any of these manufacturers nor do we endorse any particular models for use with the Ceque 8 This is simply a reference listing for your convenience For more information about any of these headphones contact the manufacturer directly SAMSON HEADPHONES Model PH60 RH100 RH300 RH600 CH70 CH700 Impedance 32 ohm 64 ohm 32 ohm 40 ohm 32 ohm 64 ohm Sensitivity mW 100 dB 106 dB 106 dB 106 dB 103 dB 108 dB OTHER MANUFACTURER S HEADPHONES Manufacturer AKG AKG Beyer Beyer Fostex Fostex Fostex Sennheiser Sennheiser Sony Sony Sony Model K 141 K 240 DT 150 DT 801 T 10 T 20 T 40 HD 450 original HD 450 Series II MDR 7502 MDR 7504 MDR 7506 Impedance Sensitivity mW 600 ohm 98 dB 600 ohm 88 dB 250 ohm 114 dB 250 ohm 114 dB 50 ohm 91 dB 50 ohm 96 dB 50 ohm 98 dB 70 ohm 94 dB 60 ohm 94 dB 45 ohm 100 dB 45 ohm 103 dB 63 ohm 106 dB 11 Ceque 8 Connections CUE MIX SET UP FOR MULTITRACK VOCAL RECORDING
17. nput level from the MAIN Left and Right Inputs in Decibels dBs from 24 to OL overload If the LEVEL meter displays an OL sig nal then turn down the signal using the master VOLUME control Master Inject The Ceque 8 s MASTER INJECT is a TRS input Tip Ring Sleeve that allows a second stereo signal to be inserted and summed together with the MAIN Left and Right signals You can use a stereo signal from your mix ers bus outputs or auxiliary sends to balance the mix between two stereo signals like rhythm tracks and vocals 2 Channel Stereo switch The 2 CH STEREO switch is used to change between the Ceque 8 s two global operating modes 2 Channel and Stereo In Stereo mode the left and right Line inputs are mixed with the left and right Inject inputs in stereo with the Balance knob controlling the left and right panning In 2 Channel mode the left and right LINE inputs are mixed with the left and right INJECT inputs into a single mono signal with the BALANCE knob controlling the level difference between the LEFT and RIGHT inputs Operating the C que 8 Ceque 8 CHANNELS Headphone Output The Ceque 8 s Headphone Output jack accepts a standard 1 4 TRS connector for easy interface with most professional headphones Once the master VOLUME has been set the channels output level is set by the VOLUME knob EQ Shape Each of the four Ceque 8 channels features an EQ ao qm SHAPE switch allowing individual equ
18. p making it easy to monitor the channel output level six segment Main Level meter provides clear and accurate indication of Line input level with an oper ating range of 24 to clip Stacking Rubber Bumpers included allowing several C que 8 s or other Samson C Class units to be stacked on top of each other creating a neat array of high quality signal processors Tilting Feet are also included so that C class units can be positioned in a comfortable and ergonomic position on desktops and workstations 19 1 u one rack space rack mount kit available Three year extended warranty Controls and Connectors FRONT PANEL LAYOUT 9 o INJECT i CH 2 p D 2 10 MASTER VOLUME Controls the level being sent to the individual channels BALANCE Controls Left and Right Pan in Stereo Mode or Level Balance between Main and Inject in 2 Channel Mode MAIN MASTER LEVEL METER Indicates the amount of signal being driven into the four channels from the master volume control HEADPHONE OUTPUT 1 4 TRS Connector for con necting any standard headphone EQ SHAPE SWITCH Provides Equalization Contour for music listening CHANNEL VOLUME Controls the volume being sent to the individual headphone channels CHANNEL LEVEL METER Displays the amount of power being supplied to the channels Q LN 22 e 4 C
19. phone amp Plugging into the left jack only sends the signal to both the left and right Operating the C que 8 SETTING UP THE C que 8 Setting up your Ceque 8 Headphone Amplifier is a simple procedure which takes only a few minutes Remove all packing materials save them in case of need for future service and plug the provided AC adapter cord in the rear AC inlet but don t plug the power cable into a wall outlet just yet Connect the output from the device you want monitored to the Left Right LINE INPUT jacks on the Ceque 8 rear panel The Ceque 8 accepts both balanced and unbalanced signals Generally a balanced signal is preferable because it provides better signal to noise ratio and reduced extraneous noise controls to the following positions cv SAMSON C que 8 S 2 4 CHANNEL Qo VOLUME UU HEADPHONE AMP AA n 0 F 000000 gl gl gl L3 c3 00 00 1 MASTER VOLUME CHANNEL 1 VOLUME 0 ST 2CH SWITCH CHANNEL 1 SHAPE SWITCH Out MASTER BALANCE Center 12 00 CHANNEL 2 4 s Controls Set the Same as Channel 1 Turn the master Volume knob and all four headphone Channel Output knobs to their minimum fully counterclockwise setting Plug the Ceque 8 power adapter into wall outlet and switch the unit on by pressing the power switch Apply a signal like the output of a mixer playing a C
20. s high as possi ble short of audible distortion However if this results in your getting blasted with signal even though the channel volume is near minimum you ll need to decrease the Master Volume while raising one or more channel volume levels Conversely if you find that you have to raise one or more headphone Channel Volume knobs to maximum or near maximum to achieve the desired level try increasing the master Volume level while decreasing the channel volume s C que 8 Master Section Q Master Volume The Ceque 8 s master VOLUME control is used to adjust the input signal connected to the main Left and Right inputs In addition the master VOLUME control adjusts the level of the signal inserted in the INJECT which is summed with the MAIN Left and Right input signal Balance Control The Ceque 8 s main channel has a BALANCE control which controls how much signal is sent to the left or right headphone outputs The control knob has a center detent which indicates that the left and right sides are balanced In 2 Channel mode the signal becomes mono and the BALANCE knob adjusts the level balance between the signals connected to the LEFT inputs and signals con nected to the RIGHT inputs For more information on 2 Channel mode see the section Mixing Signals in 2 Channel Mode found on page 9 of this manual Er ai Rie Master Level meter The Ceque 8 s master section includes a 6 segment LED LEVEL meter which monitors the i
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