Instruction/ maintenance manual of the product XRM - 12 Crest Audio
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owner’ s manual X-Rack rack mount mix ers XRM - 12 Output Monitor Mix er.
1 Sa ve the carton and packing materials ! Should you ev er need to ship the unit, use only the original factor y packing. For replacement packaging, call Crest Audio’ s Customer Ser vice Depar tment directl y . 2 Read all documentation befor e operating your equipment.
4 1 2 3 Master section P .29 Solo and Monitoring System, Output Masters. Front panel contr ols and rear panel connectors. Stereo Input channels p.19 Front panel contr ols and rear panel connections Mono Input channels p.
XRM owner’ s manual p. 4 XRM block diagram BAL XLR IN BAL LINE IN INPUT PREAMP GAIN 10 - 70 dB FOUR BAND EQ LEVEL LF LOW MID HI MID HF HPF LINE (MIC P AD) 26dB PA D PRE-SOURCE SELECT PRE SOURCE MUTE.
how to use this manual format This manual uses a format that is intended to be easy to read, yet technical for those who need to know all the details. For feature descriptions, this is done by devoting the left side of each page to 1) an ov er all module picture , 2) a block diagr am, and 3) a con- trol closeup.
Mono input channel 1 p. 6 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 6 500 PFL 40 20 10 0 6 • 3 30 + – 40 20 10 0 10 • 5 30 + – CHAN LE VEL 0 15 15 88 + – 0 15 15 88 +.
Front panel featur es Line Input (Mic P ad) With this switch in the UP position, the input preamp cir cuit is set up to accept a mic-lev el signal. This signal is br ought in via the XLR mic-input connector located on the rear panel. The 1/4" TRS input jack is ignored.
Mono input channel 1 p. 8 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 4 2 3 2 3 6 0 1 3 0 500 2 3 2 3 2 3 2 3 2 3 2 3 4 2 3 4 2 3 4 2 3 4 2 3 4 2 3 PFL 40 20 10 0 6 • 3 30 + .
Front panel featur es Equalizer (EQ) Many audio signals coming into the console r equire some degr ee of correctiv e eq in order to be part of a good sounding mix. XRM offers a 4-Band EQ on each channel. The input EQ consists of the bands: High, High-Mid, Low-Mid and Lo w .
p. 10 Mono input channel 1 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 4 2 3 2 3 6 0 1 3 0 500 2 3 2 3 2 3 2 3 2 3 2 3 4 2 3 4 2 3 4 2 3 4 2 3 4 2 3 PFL 40 20 10 0 6 • 3 30 + .
Front panel featur es Mix Send features The XRM is capable of generating 12 mono mix es, 6 stereo mix es, or a combination of both mono and stereo mix es. Each of the six Odd/Even pairs of sends can be configur ed as a stereo pair - the Odd pot becomes the le vel control, the Even pot becomes the pan pot.
p. 12 Mono input channel 1 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 500 PFL 40 20 10 0 6 • 3 30 + – 40 20 10 0 10 • 5 30 + – CHAN LE VEL 0 15 15 88 + – 0 15 15 88 + .
Front panel featur es Channel Level and Control This next set of contr ols allows the operator to contr ol and monitor the overall le vel of the channel signal. Mute Sw and LED The Mute switch kills the channel signal and pr events it fr om feeding any Mix Send pots.
p. 14 Mono input channel 1 XRM owner’ s manual PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH S4 S3 S2 S1 L R Input L R Split Out +48V On Chan In.
p. 15 Mono Input channel 1 Rear panel features +48 V On +48 volts DC is a pplied equally (thru current-limiting r esistors) to both pins 2 and 3 on the mic- input XLR connector . This feature is used with condenser micr ophones and active direct bo xes that requir e an external DC voltage (phantom pow er) in order to operate.
p. 16 Mono input channel 1 XRM owner’ s manual PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH S4 S3 S2 S1 L R Input L R Split Out +48V On Chan In.
p. 17 Mono Input channel 1 Rear panel features (continued): Split-Out XLR jack This male XLR jack is wired pin-to-pin to the f emale XLR input jack. In combination with the female XLR, it forms a passiv e , Y -Split of the input signal.
Stereo input channel 2 p. 18 XRM owner’ s manual 500 M F F M 500 500 500 500 500 500 500 500 500 500 500 500 500 2 3 2 3 6 0 3 500 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 PFL 40 20 10 0 6 • 3 .
Front panel featur es The XRM featur es four , full-function Ster eo Input channels. These inputs are labeled S1 thru S4 and ar e located directl y left of the master section. Each stereo channel f eatures tw o mic preamps, so mic-lev el stereo sour ces can be pr ocessed on one common channel.
Stereo input channel 2 p. 20 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 500 500 500 4 2 3 0 4 2 3 0 8 8 8 8 6 0 1 3 0 500 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0.
Front panel featur es Stereo EQ The Stereo Input channel has tw o parallel EQ circuits that ar e controlled by the same set of knobs. It is functionally identical to the Mono Input EQ. Many audio signals coming into the console r equire some degr ee of correctiv e eq in order to be part of a good sounding mix.
Stereo input channel 2 p. 22 XRM owner’ s manual 500 500 500 500 500 500 500 500 500 500 500 500 500 500 4 2 3 0 4 2 3 0 8 8 8 8 6 0 1 3 0 500 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0 4 2 3 0.
Mix Send features The XRM is capable of generating 12 mono mix es, 6 stereo mix es, or a combination of both mono and stereo mix es. Each of the six Odd/Even pairs of sends can be configur ed as a stereo pair - the Odd pot becomes the le vel contr ol, the Even pot becomes the pan pot.
Stereo input channel 2 p. 24 XRM owner’ s manual 500 M F F M 500 T 500 500 500 500 500 500 500 500 500 500 500 500 3 3 6 3 500 3 3 3 3 3 3 3 3 3 3 3 PFL 40 20 10 0 6 • 3 30 + – 40 20 10 0 10 •.
Front panel featur es Channel Level and Control This next set of contr ols allows the operator to contr ol and monitor the overall le vel of the channel signal.
p. 26 Stereo input channel 2 XRM owner’ s manual PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH PUSH S4 S3 S2 S1 L R Input L R Split Out +48V On Chan .
p. 27 Stereo Input channel 2 Rear panel features +48 V On +48 volts DC is a pplied equally (thru current-limiting r esistors) to both pins 2 and 3 on both the L & R mic-input XLR connectors. This featur e is used with condenser microphones and active direct bo xes that r equire an external DC voltage (phantom po wer) in order to operate.
Master section 3 p. 28 XRM owner’ s manual LAMP 12 V SOLO PWR LR 5 10 0 5 10 20 30 SIG PK 9 AFL 10 11 12 OUTPUT MASTERS SPEAKERS ON COMMON INPUT P H O N E S 1 3 5 7 10 0 9 28 6 4 M F F M 500 N ) 1 3.
Front panel featur es The XRM master section contains the contr ols and indicators for the Solo system, headphone and Monitor system, and Mix Master outputs. This section allows the operator to contr ol the ov erall operation of the mix er . A BNC lamp connector , supplied with +12 volts, is also located within this section.
Master section 3 p. 30 XRM owner’ s manual Block diagram- Common Input Module Block diagram- Mix Outputs AIN B BON A BLE - WAY ODD MIX BAL OUT MIX INSERT SEND / RTN XRM MIX P AIR 1 OF 6 P AIRS SHOWN.
Front panel featur es (continued) Common Input Often, a click track, tape pla yback or ref track, needs to be heard by all the perf ormers. An input chan- nel can be used for this, with all mix sends turned up to the same lev el. If an input channel is not a vail- able, the Common Input section can be used for that purpose.
Master section 3 p. 32 XRM owner’ s manual LAMP 12 V SOLO PWR LR 5 10 0 5 10 20 30 SIG PK 9 AFL 10 11 12 OUTPUT MASTERS SPEAKERS ON COMMON INPUT P H O N E S 1 3 5 7 10 0 9 28 6 4 M F F M 500 N ) 1 3.
Front panel featur es (continued) Master Fader - Mix Output Le vel Each of the twelv e mixes has its o wn 60mm master fader . This fader controls the main output of the mix and allows the operator to easily adjust the le vel sent to the perform- ers. Up to 10dB additional gain is a vailable.
Master section 3 p. 34 XRM owner’ s manual Bus Input to Mixes 1 2 3 4 5 6 7 8 9 10 11 12 Mix Insert 1 Mix Out 2 1 2 Mix Insert 3 Mix Out 4 3 4 Mix Insert 5 Mix Out 6 5 6 Mix Insert 7 Mix Out 8 7 8 M.
Rear panel features Main Outputs 1 thru 12 The XRM has 12 Mix outputs. Each output features the f ollowing connectors: Bus Input Mix Insert Main Out Bus Input Each of the 12 mix es has an associated Bus Input jack. This female XLR allows external signals to be mix ed into the XRM, either fr om another X-Rack mixer , or any other audio sour ce .
p. 36 Master section 3 XRM owner’ s manual Monitor Out Common Input to All Mixes Left (Odd) Right (Even) Controlled by SPEAKER - ON Switch ( Level Control on Front Panel ) Left (Odd) Right (Even) MO.
p. 37 Master section 3 Rear panel features (continued) Other Inputs and Outputs Common Input A stereo input is pr ovided for feeding a common signal to all of the 12 mix buses sim ultane- ously . Fr om the stereo sour ce , the left signal will feed all of the odd mix es, the right signal will feed all of the e ven mix es.
p. 38 Master section 3 XRM owner’ s manual SOLO LINK IN OUT Use 5-Pin DIN cable to interconnect SOLO Systems of X-Rack Mixers ON P O W E R A C IN 100 - 240V 50 / 60 Hz 80W X-RACK RACK-MOUNT MIXER NO USER SERVICEABLE PAR TS INSIDE.
p. 39 Master section 3 Rear panel features (continued) Solo Link When using multiple X-Rack mix ers together , the solo systems can be linked. This Solo Link is compatible with the XR-20 and XR-24 Rack mix ers. A 5-pin, shielded DIN cable, wired pin-to- pin, can be used to link the Solo Audio and control signals betw een mixers.
p. 40 T= IN + R= IN – S= CHS 12 3 1= CHS 2= OUT + 3= OUT – 2 1 3 1= CHS 2= IN + 3= IN – • XLR Female • • XLR Male • • 1/4” TRS Input • + 4dBu + 4dBu Passive + 4dBu + 4dBu – 60dBu.
p. 41 Specifications 4 Specifications Fr equency response +0/-0.5dB 20Hz-20kHz ref 1kHz (any input to an y output) THD+noise any output <0.01% THD 20Hz-20kHz@ +15dBu out Noise mic ein: better than .
XRM owner’ s manual V ersion 1.01 May 28, 2002 Crest P/N D7000028 Crest Audio 16-00 Pollitt Drive Fair Lawn NJ 07410 (201) 475-4600 www .crestaudio.com.
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