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Quest Engineering PR Series, Owner'S Manual

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Owner’s Manual

PR-120 / PR-240

+12dB

   0dB

-12dB

+12dB

0dB

-12dB

125Hz

250Hz

500Hz

GRAPHIC EQUALIZER

1kHz

8kHz

PROTECT

+3

0

-4

-10

-20

ON
OFF

MIN

MAX

2kHz

4kHz

PUBLIC ADDRESS AMPLIFIER

CHANNEL 1

MIN

MAX

CHANNEL 2

MIN

MAX

CHANNEL 3

MIN

MAX

CHANNEL 4

MIN

MAX

CHANNEL 5

MIN

MAX

CHANNEL 6

CHIME

MIN

MAX

POWER

ALL

ZONE 1

ZONE 2

ZONE 3

ZONE 4

ZONE 5

PR-240

Summary of Contents for PR Series

Page 1: ... 500Hz GRAPHIC EQUALIZER 1kHz 8kHz PROTECT 3 0 4 10 20 ON OFF MIN MAX 2kHz 4kHz PUBLIC ADDRESS AMPLIFIER CHANNEL 1 MIN MAX CHANNEL 2 MIN MAX CHANNEL 3 MIN MAX CHANNEL 4 MIN MAX CHANNEL 5 MIN MAX CHANNEL 6 CHIME MIN MAX POWER ALL ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 PR 240 ...

Page 2: ...IMPORTANT SAFETY INSTRUCTIONS ...

Page 3: ...240 Introductions 2 Features 3 Front Panel Controls 4 Rear Panel Contuols 5 Setup 6 Wiring Guide 7 Connections 9 Operations 12 Applications 15 Block diagram 16 Specifications 17 Table of Contents Table of Contents ...

Page 4: ...allation and becoming familiar with its features and how to use them Please take a great care may be needed when moving your set and are required if it ever becomes necessary to return your set for service Never place the unit near radiator in front of heating vents to direct sun light in excessive humid or dusty location to avoid damages and to guaranty a long reliable use Connect your unit with ...

Page 5: ...e telephone paging input with EURO block terminal Phantom power for MIC channel 1 and 2 Three layer priority muting Built in four kinds user selectable pre announce chime 120watts PR 120 240watts PR 240 rated power output High efficiency Class D Amplifier Application PR 240 Advanced protection system includes current limiting over current and thermal protection Desktop and 19 inches rack mountable...

Page 6: ... MAX POWER ALL ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5 PR 240 Front Panel controls 1 2 3 4 5 6 7 8 Controls 9 1 Bay for adding optional music source CD player with AM FM Tuner or MP3 player 2 Graphic equalizer control 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz 8kHz 3 Indicators Protection Output level Power 4 Input channel volume controls 5 Master volume controls 6 Pre announce chime switch 7 All speaker zone ou...

Page 7: ...OISTURE CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY SAME TYPE FUSE AVIS RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR ATTENTION UTILISER UN FUSIBLE DE RECHANGE MEME TYPE AC INPUT 120V 60Hz 88W FM AM ANTENNA FUSE T6 3AH 250V FUSE 1 2 3 4 5 6 11 10 9 8 Controls 7 1 AC fuse 2 Expansion ports AMP IN AMP OUT LINK IN LINK OUT 3 M O H Music On Hold output and level control 4 Pre announ...

Page 8: ...s and the back of the rack should be a minimum of 4 inches about 10cm from the mixer amplifier rear panel How to attach rack ears 1 Locate the two rack ears and six rack ear screws supplied 2 Place a rack ear flush with the right front of the chassis 3 Insert a screw into the bottom hole of the rack ear and chassis Screw it in 4 Insert a screw into the rnid hole of the rack ear and chassis Screw i...

Page 9: ...TION BALANCED LINE s SHIELD SOURCE straln rellef clamp sleeve ground shleld tip signal sleeve tip UNBALANCED LINE XLR Balanced Wiring Guide Input output s SHIELD TO DESTINATION UNGROUNDED PROOUCT WITH 2 PRONG POWER CORO ONLY 1 ground shield 2 hot ve 3 cold ve This connection reduces the signal level by 6 dB For connection of balanced and unbalanced plugs ring and sleeve have to be bridged at the s...

Page 10: ...sed on the distance from amplifier to speaker The wire sizes apply to the 4 ohm tap Distance Wire Size Up to 25 ft 16 AWG 26 40 ft 14 AWG 41 60 ft 12 AWG 61 100 ft 10 AWG 101 150 ft 8 AWG 151 200 ft 6 AWG NOTE Custom wiring shoule only be performed by qualified personnel Class 2 wiring is re quired CAUTION Never use shielded cable for output power wiring Figure shows connector pin assignments for ...

Page 11: ...other terminals to speaker positive lead The impedance and output voltage are same as following Table PR 120 4Ω 22V 5 2Ω 25V 42Ω 70V 83Ω 100V PR 240 4Ω 31V 2 6Ω 25V 21Ω 70V 42Ω 100V output voltage and impedance NOTE Impedances indicated in the table represent the total speaker system impedances Figure shows the way how to select impedance 1 5 4Ω BLU GRN RED 25V 70V 100V T10 BLK BLK BLK T13 How to ...

Page 12: ... H G C H G C SW H LINK OUT PRE AMP OUT LINK IN DESIGNED AND ENGINEERED IN KOREA AMP IN MAX VOLUME VOLUME MIN MAX MIN MAX INT EXT MUSIC ON HOLD CHIME TELE PAGING MIC WARNING DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY SAME TYPE FUSE AVIS RISQUE DE CHOC ELECTRONIQUE NE PAS OUVRIR ATTENTION UTILISER UN FUSIBLE DE RECHANGE MEME TY...

Page 13: ...0 30 GAIN 6 14 50 30 GAIN LINE EXT MOH LINE REMOTE MIC MIN G C H G C H G C SW H LINK OUT PRE AMP OUT LINK IN DESIGNED AND ENGINEERED IN KOREA AMP IN MAX VOLUME VOLUME MIN MAX MIN MAX INT EXT MUSIC ON HOLD CHIME TELE PAGING MIC WARNING DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE CAUTION FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY SAME TYPE FUSE AVIS RISQUE DE CHOC ELECTRONIQUE N...

Page 14: ...g a 1 4 inch phone plug into AMP IN terminal disconnects internal power amplifier section from the mixer section Expansion PR series PR series mixer amplifier allows expansion with LINK IN and LINK OUT connector If you need more input and output just this function allows you can do that This function affect which signals are heard when another mixer or PR series mixer amplifier are wired to the mi...

Page 15: ...ng pre announce chime Priority This function allows talk over for MIC channel 1 and 2 All other input signals are muted when this function is activated during stay ON position Figure shows the priority switches and its ON and OFF posi tions Phantom power PR series mixer amplifier supply DC 15 Volts phantom power to use condenser microphone with MIC 1 and 2 channels Figure shows the phantom power s...

Page 16: ...is routed from LINE IN chan nel only channel 6 connected external music source Signal input gain control PR series mixer amplifier can accept variable and wide range input signal with trim pot Adjusts the trim pot in a range of 44dB to accept variabe external equipments Figure 3 6 shows detail input sensitivities Priority Control PR series mixer amplifier has three layer priority mute function Whe...

Page 17: ... 60Hz OUTPUT COM Hi Z Lo Z FUSE 2A 250V PUBLIC ADDRESS AMPLIFIER MIC CHANNEL 1 ON OFF ON OFF PRIORITY 6 50 PHANTOM GAIN MIC CHANNEL 2 ON OFF ON OFF PRIORITY 6 50 PHANTOM GAIN MIC CHANNEL 3 6 50 GAIN MIC CHANNEL 4 6 50 GAIN MIC CHANNEL 5 GAIN CHANNEL 6 6 14 50 30 GAIN 6 14 50 30 GAIN LINE EXT MOH LINE REMOTE MIC MIN G C H G C H G C SW H LINK OUT PRE AMP OUT LINK IN DESIGNED AND ENGINEERED IN KOREA ...

Page 18: ...16 PR 120 PR 240 Block diagrams Block diagrams PR 120 240 BLOCK DIAGRAM ...

Page 19: ...atio at rated power output Better than 90dB Crosstalk at all control maximum 70dB at 1kHz Rated Output Power at THD 0 5 120Watts 240Watts Total Harmonic Distortion THD at 1kHz rated power Less than 0 5 Phantom Power 15VDC Power Band Width at 1kHz from speaker out tap 80Hz 15kHz with less than 0 5 THD DC Output Offset Less than 3mV Operating Temperature Humidity at non condensing 0 40 C at 95 humid...

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