Bogen DRZ35 radio receiver
Contents
1. H D 3000 FM Antenna Connections ae 300 ohm FM Antenna The included di pole antenna or a 300 ohm antenna feed can be connected to these terminals 75 ohm FM Antenna A 75 ohm coaxial antenna can be connected to this F style connector AM Antenna The included AM loop antenna can be connected to these terminals Signal Outputs BOOSTER AMP OUTPUT SIGNAL OUTPUTS A mono RCA connector provides a line level output of the signal feeding the LINE DRZ35 power amplifier This signal is typically used to feed the input of an additional L booster amp for systems that require more than the DRZ35 s 35 watts of power Since the additional booster amp is external to the DRZ35 the zone switches have BOOSTER AMP no effect on the output of this amp The Booster Amp Output is affected by the PRE POST Volume switch which allows the installer to determine if the Booster Amp signal is affected by changes in the front panel volume control Post Volume PRE VOLUME or not Pre Volume When using this output to supply an additional external amplifier the Post position might be desirable so that the output level of that amplifier tracks adjustments to the DRZ35 volume control If it is desirable to use the volume control on the external booster amp to control its output level then Pre Volume should be used so that the input level to the booster amp does not change with adjustments to the front panel2. DIGITAL AM FM TUNER 4 DRZ35 4 ZONE MUSIC amp PAGING SYSTEM SPEAKER ZONE SELECT TUNER MUSIC SELECT MIC LINE MUSIC BA d POWER I yig 4 v ya er o om gt x e y e e y e e 1 4 4 o4 A E A A A D 10 D 10 D VT ege g G kf Y 1o O ON INPUT LEVEL D 2 BOGEN 7 L DRZ35 4 Zone Music amp Paging System ESQ CEN COMMUNICATIONS INC 2009 Bogen Communications Inc All rights reserved Specifications subject to change without notice 54 2190 01B 0912 NOTICE Every effort was made to ensure that the information in this guide was complete and accurate at the time of printing However information is subject to change WARNING To reduce the risk of Fire or Electric Shock Do Not Expose this apparatus to rain or moisture Apparatus shall not be exposed to dripping or splashing and no objects filled with liquids such as vases shall be placed on the apparatus WARNING Only connect unit to AC mains outlet providing protective earthing connection NOTE Mains plug is used as disconnect device from the mains and shall remain readily accessible and operable CAUTION These servicing instructions are for use by qualified service personnel only To reduce the risk of el
3. Jumpers shown connecting the 4Q Output to the Zone Selection Switches Connections Connecting a Speaker Load directly to the Amplifier Output not using zone function When the zone selection feature is not desirable the speaker load can be connected directly to one of the amplifier output terminals on the Amplifier Output terminal strip 25V 70V or 4 ohm OUT 40 OPERATION LINK IN 70 25V OPERATION Connecting a single group of 25V or 70V speakers The speaker load for transformer coupled speakers are connected between the COM and either 25V or 70V terminal depending on the speaker type A jumper must be connected across the LINK terminals for these outputs to work A second jumper is typically connected across the GND and COM terminals This jumper can be omitted if it is desirable to have the speaker signals float without a hard connection to the system ground Connecting a single group of low impedance speakers OUT 40 OPERATION E LINK Ad IN 70 25V OPERATION 4 The speaker load for low impedance speakers are connected between the i GND and the 4Q terminal There must be no jumper installed across the ge D LINK terminals for the 4 ohm output to work properly GND COM ME ZOV ZONE 40 WARNING ae 4 ohm and 25V 70V outputs should not be connected simultaneously US Only one output to be used at a time
4. v INOZ ANOZ z INOZ 1 INOZ GE t INOZ Ah o o SG ASL G 330 NOILO3T13S H3MOd ZHO9 AOZ L ANOZ INOZ 3NOZ A8C AN LINDYID TL Up O 3NOZ o A0Z ASZ NITE TS o 00000 188 Jor 3719991 SSV8 os HaNnl xnv woo H3MOd i d L LB HOLIO3NNOO q E d SNIH2IIMS VNNALNV YANNL Xnv HOH i ra A ia Las A Y3LSYN d Aa eem 7 CHEZ KSE ino TINDHIO XOA uaisooas ann 2 dud i d G om f INT o WOLNWHd 12 Limited Warranty Exclusion of Certain Damages The Bogen DRZ35 4 Zone Music amp Paging System is warranted to be free from defects in material and workmanship for two 2 years from the date of sale to the original purchaser Any part of the product covered by this warranty that with normal installation and use becomes defective as confirmed by Bogen upon inspection during the applicable warranty period will be repaired or replaced by Bogen at Bogen s option provided the product is shipped insured and prepaid to Bogen Factory Service Department 50 Spring Street Ramsey NJ 07446 USA Repaired or replacement product will be returned to you freight prepaid This warranty does not extend to any of our products that have been subjected to abuse misuse improper storage neglect accident
5. 12 LIMITED WARRANT Vo geed 13 DRZ35 Front Panel DISTAL OEM TUNER l DRZ35 4 ZONE MUSIC amp PAGING SYSTEM 8 1 CVU O0000 POWER BAND MEMORY SLEEP DOWN UP SPEAKER ZONE SELECT Q 1 2 3 4 5 45 ME UP D VOLUME MIC LINE MUSIC BASS TREBLE yy yt yey Vey Wf y e E e E e y y A LAA A 0 10 10 10 0 1088 Tunap 1088 Tanap INPUT LEVEL Tone _ TI 1 Digital AM FM Tuner 7 Master VOLUME Control AM FM tuner module see Page 3 for details Controls overall level of mixed input signals 8 Signal Level LED Indicators Five segment output voltage level OdB indicates maximum rated output level 2 MIC Input Level Control Controls microphone level MIC can be set so that it will mute all other input sources 9 Power ON Indicator S PINE Input Level Control Indicates when Power is on Controls level of the Line input 10 Master POWER Switch 4 MUSIC Input Level Control Turns Power to DRZ35 unit ON or OFF Controls level of selected music source Tuner or AUX input 11 Music Select Buttons TUNER amp AUX Determines if Tuner or rear panel AUX input is fed 5 BASS Tone Control to Music control Controls the amount of cut or boost of Bass frequencies below 100Hz 12 Speaker Zone Select Bu
6. improper installation or have been modified or repaired or altered in any manner whatsoever or where the serial number or date code has been removed or defaced THE FOREGOING LIMITED WARRANTY IS BOGEN S SOLE AND EXCLUSIVE WARRANTY AND THE PURCHASER S SOLE AND EXCLUSIVE REMEDY BOGEN MAKES NO OTHER WARRANTIES OF ANY KIND EITHER EXPRESS OR IMPLIED AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED AND EXCLUDED TO THE MAXIMUM EXTENT ALLOWABLE BY LAW Bogen s liability arising out of the manufacture sale or supplying of products or their use or disposition whether based upon warranty contract tort or otherwise shall be limited to the price of the product IN NO EVENT SHALL BOGEN BE LIABLE FOR SPECIAL INCI DENTAL OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS LOSS OF DATA OR LOSS OF USE DAMAGES ARISING OUT OF THE MANUFACTURE SALE OR SUPPLYING OF PRODUCTS EVEN IF BOGEN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES Some States do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from State to State Products that are out of warranty will also be repaired by the Bogen Factory Service Department same address as above or call 201 934 8500 The parts and labor involved in these
7. more space provided both top and bottom the better Rubber feet must be installed on the unit to allow it to be placed on a shelf or tabletop Connections Connecting Speakers to the Zone Switch Bank The terminal strip in the Zone Output section of the rear panel allows groups of speakers to be connected to a selector switch bank so that they can be selectively connected and disconnected to the DRZ35 s amplifier This feature is useful when paging into only one area or a few areas is desired The user selects the zones to be paged makes the page and then can select different zones to get background music Wiring Groups of Speakers Together Each group or zone of speakers are connected by the and COM terminals for each zone For best sound performance the speakers should be wired consistently All the Black or Com wires for transformer coupled speakers in a group should be wired together and all the transformer Tap wires should be wired together The Com and Tap leads from the group of speakers should then be wired to the COM and terminals respectively of the particular zone output on the DRZ35 Other zones of speakers should be wired likewise Care should be taken to ensure that the sum of all the speakers in the zones does not exceed 35W in case all zones are turned on at once ZONE2 m ZONE 4 1 1 1 1 COM COM COM com ZONE 1 ZONE 3 r r Low imped
8. repairs are warranted for 90 days when repaired by the Bogen Factory Service Department All shipping charges in addition to parts and labor charges will be at the owner s expense All returns require a Return Authorization number For most efficient warranty or repair service please include a description of the failure 12 2008 13 BOGEN COMMUNICATIONS INC 50 Spring Street Ramsey NJ 07446 U S A Tel 201 934 8500 Fax 201 934 9832 www bogen com
9. volume control of the DRZ35 LINE OUTPUT The LINE Output is a dual mono feed of the DRZ35 s output for use with recording devices or other amplifiers The LINE Output is always Pre Volume Connections Inputs AUX A stereo combining RCA pair are provided for connection of an external AUX LINE line level audio device The AUX input works in conjunction with the MUSIC SELECT switch and the MUSIC control on the unit s front panel o 9 LINE A stereo combining RCA pair are provided for connection of an external line level audio device The line input works in conjunction with the LINE control on the unit s front panel Microphone Input e MIC A standard XLR type balanced microphone connector is provided for the connection of a paging microphone The microphone can be either a MIC low impedance Dynamic or Electret Condenser type The connection polarities for the microphone input are printed on the rear panel near the connector VOX OFF bd PHANTOM MEAN OM DN PIN 1 GND The Phantom push button allows phantom power to be supplied to the PING gt microphone if it is needed Only Electret Condenser microphones need this function It should be set to OFF for dynamic microphones e VOX The VOX switch allows the microphone input to override the other audio inputs when it is in use By setting the switch to on any audio activity de
10. Amplifier Outputs terminal strip to either the 25V 70V or 4 ohm terminal on the same strip OUT 40 OPERATION LINK IN 70 25V OPERATION leie GND COM 25V 17860 Using Transformer Coupled Speakers When using transformer coupled speakers use the included jumper to connect the ZONE terminal to either 25V or 70V depending on the speakers 70V ZONE being used Also make sure that a jumper is connected across the LINK terminals A second jumper is typically installed across the GND and COM terminals This jumper is optional when using transformer coupled speakers In some instances it is desirable to allow the transformer coupled speakers to float and not have a connection to the system s ground The GND to COM jumper can be omitted if desired but typically it is put in place Using Low Impedance Speakers When using low impedance speakers use an included jumper to connect the ZONE terminal to the 4O terminal and a jumper to connect the GND and COM terminals on the Amplifier Output terminal strip Also be sure to remove any jumper connected across the LINK terminals Removing the link jumper will disconnect the output transformer from the DRZ35 s amplifier Bee sis 1400 Jumpers shown connecting the 70V Output to the Zone Selection Switches OUT 40 OPERATION H ER IN 70 25V OPERATION 4 GND COM 25V 70V 1786n 1400 ZONE 4Q
11. The memory location in these cases is 54 the number of the 1 2 8 4 5 45 memory button used For example memory location 7 is stored by pressing MEMORY Recalling stations from Memory O First select the desired band AM FM by using the BAND button Then press the BAND desired memory number 1 5 To access stations stored in memory locations 6 10 first O push the 5 button and then the memory button 1 5 so that it adds up to the desired memory location See the example above for how to use the 5 button For example memory location 7 is recalled by pressing Q Q Q Q Q Q O gt gt 1 2 3 4 5 5 BAND MEMORY Manually scan through stored stations Q Repeatedly pushing the ME UP button will sequence through all the memory locations ME UP Sleep Timer The tuner can be set to turn off after a preset number of minutes To turn on this O function and set the turn off delay repeatedly press the SLEEP button The display SIRER will show the number of minutes until the tuner turns off The delay time starts at 90 minutes and will change at 10 minute increments with each push of the SLEEP button and eventually return to off the sleep function is disabled Once the tuner turns off due to the sleep timer it must be turned on again by press ing the POWER button on the Tuner module Please note that the sleep function only affects the tuner module and does not turn off the DRZ35 itself Microphone paging and other input
12. ance speakers can be wired to the zone terminals however the combined load of all the speakers when all zones are turned on must not be less than 4 ohms The amplifier is not designed to drive loads lower than 4 ohms Meeting this requirement is often difficult to do with low imped ance speakers and calculations using Ohm s law are typically required if more than one or two speakers are used per zone Consistency in wiring low impedance speakers should also be exercised One of the speaker terminals is typically identified by a symbol a red dot or some other identifier All the terminals in a zone should be wired together and returned to the of the zone s terminals Likewise for the other terminal on the speakers Reversing the speaker connection on one speaker versus another will not damage the speaker or the DRZ35 but it may reduce the amount of bass that the system will produce since the reversed speaker will cancel some of the bass from the adjacent speakers A WARNING DO NOT mix different speaker types 40 70V and 25V in the same system Connecting the Speaker Zone Switch Bank to the Amplifier Output As mentioned in the previous section the zone selector is simply a bank of switches that can direct the DRZ35 s amplifier to different groups of speakers Before the zone section function can operate it must be connected to one of the amplifier output types A jumper wire is used to connect the ZONE terminal on the
13. ectric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so Always follow these basic safety precautions when installing and using the unit IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean unit with dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions 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 the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 Unplug this apparatus during lightning storms or when not used for long periods of time 13 Refer all servicing to qualified service personnel Servicing is required when the apparatu
14. he facility receive the audio program When the zone is selected the button is sunken flush with the front panel When the zone is not selected the button noticeably protrudes from the panel See Page 6 for more important information on connecting speakers to the Zone Switch Bank POWER INPUT LEVEL VOLUME O odB 3dB O 13 DASS TREBLE Vg SENE d 1048 1008 1008 1048 TONE TUNER AUX O O MUSIC SELECT COD SPEAKER ZONE SELECT Digital AM FM Tuner Operation TUNER PANEL PIGA AMT TUNER CONTROLS POWER BAND MEMORYSLEEP DOWN UP 0000000 3 4 5 45 Power Button Cc If the tuner section is currently off press the POWER button to turn on the Tuner POWER module The Tuner module can be turned off separately from the main power button Band Selection and Tuning Push the BAND button until the desired band AM or FM is shown in the display Then use the DOWN and UP buttons to manually tune to the desired station Q DOWN Storing stations in Memory Tune to a desired station press the MEMORY button the MEM icon will be Q displayed and then immediately push the desired memory button 1 5 The tuner MEMORY allows up to 10 stations to be stored for each band To store a station in memory loca tions 6 through 10 press the memory button then the 5 button and then one of the 1 5 memory buttons
15. ifier Output 25V Amp output connections for 25V speaker loads Amplifier Output 70V Amp output connections for 70V speaker loads J 10 Amplifier Output Zone Connects the amplifier output 4O 25V 70V to speaker zone switch bank 11 Amplifier Output 4 ohm Low impedance amp output 4O min load impedance Q 12 Antenna 75 ohm FM Co axial connector for 75Q FM antenna 13 Pre Volume Post Volume Button Switch position determines whether or not the Booster signal is affected by the Master Volume Control 14 Signal Output Booster Amp Connection Signal level feed to Booster amp or recording device 15 Signal Output Line Left amp Right Dual mono signal level output Pre Volume 16 AUX Inputs Left amp Right Stereo combining input connections for audio source controlled by Music Select switch AUX selection and Music Level Control see page 2 callout 4 17 Line Inputs Left amp Right Stereo combining input connections for audio source controlled by Line Level Control 18 Phantom OFF Phantom ON Button Turns Phantom power for condenser Mics on and off 19 VOX ON OFF Switch Turns voice activated muting of Music amp Line inputs by the microphone on or off 20 MIC Input Connection XLR style microphone input connector WARNING 4 ohm and 25V 70V outputs should not be connected simultaneously Only one output to be used at a time DRZ35 Ins
16. s has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Jo om P Go CAUTION TO PREVENT THE RISK OF ELECTRIC CAUTION SHOCK DO NOT REMOVE ANY FRONT BACK COVERS 951590797719 OR PANELS NO USER SERVICEABLE PARTS INSIDE DO NOT OPEN REFER SERVICING TO QUALIFIED PERSONNEL The lightning flash with arrowhead symbol within an equi lateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s 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 Contents Page DRZ35 FRONT PANEL 2 eg EE EES 2 DIGITALAM FM TUNER p M 3 DRZ35 REAR PANEL truci veces saeco cocedcacvsietscatsssctsactaatensncnena2ectccust 2evcecasuaesactieusesencsvetivns test 4 DRZS5sINSTAL LATION EN 5 ellen el EE 6 8 DRZ35 OPERATION M 9 DIGITAL AM FM TUNER OPERATION 10 SPECIFICATIONS ee E 11 DRZ35 BLOCK DIAGRAM
17. s will still be heard when the tuner is off 10 Amplifier Power Rating RMS Distortion na e thre Mk tht Reet ren Signal to Noise Ratio Audio Frequency Response Speaker Outputs Tone Controls Microphone Input Line Output NEE ois ore S Tuner Station Tuning Band Coverage Antennas o bp VV ee eee Preset Memory Channel Indicator Power Dimensions Power Consumption Dimensions Product Weight 11 Specifications 35 watts 196 Rated output power 1 kHz MIC 55 dB LINE AUX 70 dB 70 Hz 15 kHz 25 70V 20 Hz 20 kHz 40 4 ohm 25V 70V Bass 10 dB 100 Hz Treble 10 dB 10 kHz 750 pV 1k ohm balanced 3 pin XLR connector 21V switch enabled VOX triggered switch enabled 80 mV 10k ohm unbalanced RCA jack 500 Pre 1V Post AV RCA jack 500 1V RCA jack Digital pushbutton with PLL Synthesizer AM 522 to 1620 kHz FM 87 5 to 108 MHz 750 coaxial 3000 screw AM Loop screw 10 FM 10 AM Preset stations Backlit LCD 120V AC nominal 60 Hz 98W 17 W x 5 1 4 H x 13 5 8 D 27 lbs UL CUL FCC DRZ35 Block Diagram
18. t the desired audio levels between the three sources Volume Control The large Volume control sets the overall system output level The relative mix level between the three input sources is not affected by this control Level Meter Next to the Volume control is a 5 segment output level meter This meter helps in setting the maximum level of the system During loud passages of audio the output meter should not exceed the 0 dB segment When this segment is on the output from the amp has reached its designed maximum output voltage level Generally exceeding this level can cause noticeable distortion in the audio program and exceeding this level con tinuously may cause temporary thermal shut down of the amp as a protection measure If the system output level is very low the level meter may not light any segments Bass amp Treble Controls Use these controls to adjust the amount of high and low frequency content heard through the speakers The 0 position on the control provides no cut or boost to that frequency band Music Select Switch Use the Music Select switch to choose between feeding the Tuner signal or the rear panel AUX input signal to the Music Input Use the Music Input Level control to adjust the relative volume of the selected input signal Speaker Zone Select Switches The Speaker Zone Select switches are push on push off type switches Any number or combination of these switches can be selected to control which zones in t
19. tallation PACKAGE CONTENTS 1 DRZ35 4 Zone Music amp Paging Unit 2 Rack Mounting Brackets with screws 3 FM Dipole Antenna 4 AM Loop Antenna 5 Instruction Manual DR235 E ant Rss page RACK MOUNTING When assembling equipment in a rack the DRZ35 should either be on the bottom of the rack or above any equipment that does not produce heat to ensure a source of cool air to the bottom of the unit Provide at least 1 RU Rack Unit of space above and below the DRZ35 so that cool air is available to the unit Rack mounting brackets are provided with the unit To attach rack mounting brackets to the DRZ35 first remove and discard the three screws located toward the front on each side of the unit Using the screws included with the rack brackets attach the brackets to each side of the unit SHELF TABLE MOUNTING When placing the DRZ35 on a shelf or table the unit should ideally stand alone with no equipment on top of or beneath it If the DRZ35 must be stacked with other equipment care must be taken to ensure that the DRZ35 which is passively cooled be allowed a minimum clearance of 1 2 for the bottom set by height of the unit s feet and a minimum of 1 from the top to other obstructions Be sure that any equipment situated below the unit produces little heat The sides of the DRZ35 have no specific clearance area requirements These are minimum acceptable clearances however the
20. tected at the microphone input will mute the audio from the other inputs until the microphone is no longer in use With the VOX set to off the Microphone will not mute other inputs but instead mix into the audio program with the other input sources Microphone inputs are very sensitive and can pick up the slightest audio from the microphone This can cause false signal triggering VOX muting Because of this it is recommended to use a microphone that has an ON OFF switch that quiets the microphone s output when it is off Push to talk desktop or gooseneck microphones work very well for this purpose AC Power Plug the line cord into a standard 15A 120VAC outlet after making all the necessary connections A push to reset circuit breaker provides 98W overload protection Reset this breaker should the unit ever fail to turn on DRZ35 Operation DIGITAL AM FM TUNER FRONT PANEL CONTROLS DRZ35 zone music paame syste T 4 T 9 90000 2 SC 1500 SPEAKER ZONE SELECT Tum MUSIC SELECT VOLUME 1 POWER Power Switch The large power switch in the lower right corner turns the unit on or off The ON indicator confirms the current state of the switch Input Level Controls Separate input level controls are provided for Microphone Line and Music inputs Use these 3 controls to se
21. ttons Allows zones of speakers to be selectively connected 6 TREBLE Tone Control to the amplifier output Push On Push Off operation Controls the amount of cut or boost of Treble see page 4 callout 2 frequencies above 10kHz Digital AM FM Tuner MEMO KC 1 gt E 106 1 POWER OO BAND MEMORY SLEEP DOWN UP O O 2 Tuner Power Button Turns Digital Tuner ON or OFF AM FM Band Select Button Selects AM or FM tuning bands Channel Memory Button Used when storing preset channels Sleep Mode Select Button Used to set turn off delay time of the tuner section Channel Select Buttons UP and DOWN Manual station tuning UP and DOWN buttons Memory Up Press to change to the next higher station preset 5 Memory Offset Used in tandem with 1 5 buttons to select presets 6 10 Station Preset Buttons 1 5 6 10 Selects a preset station from 1 to 5 directly 6 to 10 using the 5 button in tandem Preset Station Display Indicates currently selected preset station 10 Tuning Units Display Indicates receiving frequency units 11 Channel Frequency Sleep Display Shows current channel frequency or sleep time 12 FM AM Band Indicator Indicates receiving band 13 Sleep Indicator Icon Turns on to indicate sleep function has been set 14 Stereo Indicator Icon Indicates when received station is in stereo 15 Memor
22. y Indicator Icon Turns on to indicate that a station preset is ready to be stored 16 Channel Indicator Icon Indicates channel preset in use DRZ35 Rear Panel DRZ35 ZONE1 ZONE 2 ZONES ZONE4 4 ZONE MUSIC amp PAGING SYSTEM xr d nur Zeen Ee OUTPUT POWER 35W RMS j e OUT 40 OPERATION IN 70 25V OPERATION 4 AMPLIFIER OUTPUTS 120V 60Hz D D D D D D D 98w CONNECT TO PROPER AMPLIFIER JUTPUT ZONE SPEAKERS EO COMMUNICATIONS INC 750 FM O Circuit Breaker Reset Button amp AC Line Cord Line cord for connection to 120V AC 60Hz outlet Circuit breaker reset button 2 4 Zone Outputs Barrier Strip and COM Connect up to 4 groups of speakers to this terminal strip when using the zone selection function see page 2 callout 12 3 Antenna 300 ohm FM Connection Connection for 300 ohm FM antenna A Antenna AM Connection Connection for AM antenna 5 Amplifier Output Link Set Link for either 4 ohm or 25V 70V speaker loads Amplifier Output GND System ground used for low impedance 4 ohm speaker loads Amplifier Output COM Used for 25V 70V loads Ampl
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