Crest Audio XRM - 12 owner manual Solo Link, Audio Linking, AC Input, Connector Pinout detail

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Master section 3

Rear panel features (continued)

Solo Link

When using multiple X-Rack mixers together, the solo systems can be linked.This Solo Link is compatible with the XR-20 and XR-24 Rack mixers. A 5-pin, shielded DIN cable, wired pin-to- pin, can be used to link the Solo Audio and control signals between mixers.The “Slave” mixer has its own solo’d signals appear in its own solo system, but these signals are also passed to the “Master” mixer where they also show up in the Master mixer solo system, added to any existing solo’d signals, or triggering the Master solo if nothing else was present.The Master and Slave consoles are designated by the IN-to-OUT relationship between the Solo Link connec- tors.The Master mixer should have the DIN cable plugged into the IN jack, the other end of the cable should plug into the Slave’s OUT jack.

This linking can extend to additional mixers (no practical limit). Just keep plugging additional DIN cables between the added mixers.The daisy-chain continues, the ultimate Master will be the mixer with only one DIN cable plugged into the Link-IN jack.

NOTE 1:You should not plug the ends of the link-cable into both Link-IN jacks or both Link- OUT jacks across two mixers. No permanent damage will result, but there may be erratic solo behavior (besides, it’s not a nice thing to do to the XRM).

NOTE 2: Even though the DIN connector is the same type as used in MIDI systems, the Link connection is not MIDI and should not be connected to a MIDI device.

Audio Linking

The XRM is equipped with bus-in jacks on all the main mix buses (see earlier Rear-Panel detail) allow- ing the user to create a larger console out of multiple XRM, XR-20/24 or combinations of all types. Similar to the Solo-Link description,“Slave” mixers can be fed to “Master” mixers by using standard, shielded XLR cables to tie the Slave balanced outputs to the Master mixer’s bus inputs.The Slave out- puts (still controlled by their our master faders) are fed to the Master mixer as a sub-mix. No addi- tional inputs are taken up, the bus inputs allow for easy expansion.

AC Input

The XRM uses an internal switching power supply which is capable of accepting a wide range of line voltages.This industry-standard IEC connector will mate up with any of the common IEC line cords. The incoming voltage can be anywhere between 100 and 240 volts, +/- 10%.The AC mains frequency can be 50 Hz or 60 Hz.

Connector Pinout detail

The rear panel of the XRM is screened with the pinout and electrical details of the I/O connectors. It is reprinted here for your reference.

XRM Internal Options

The Input Channels have various options that can be selected. If specified at time of order, the factory will set-up the XRM with the user’s desired settings. If configured from the factory, the appropriate check-box will be marked, showing which option was changed, and what it was changed to.

Mix 1-4 PRE: This PRE source is normally Pre-fader. It can be changed to Pre-Insert or Pre-EQ

PRE-Follow Mute: Normally, the PRE signal (no matter what the source) will be muted when the main channel is muted (MUTE sw depressed).An option allows the PRE source to ignore the channel mute and be active (ON) at all times.

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Contents Rackrack mount mixers XRM 12 Output Monitor Mixer Important precautions Table of contents XRM block diagram Control Icons How to use this manualModule Controls Block diagramHz Lo-Cut filter Lo Cut SwitchLine Input Mic Pad GainXRM Mono Input Module Low frequency-LF High frequency-HFHigh mid-HM Low mid-LMBlock diagram Master Faders Chan FaderModule Mix Sends 1 Mix 1 4 PREMute Channel Level and Control Mute Switch UP, LED OFFMute Switch DOWN, LED on PeaK / SIGnal LEDRear panel ConnectorsXLRMic Input jack Pin-1 Lift Switch+48V On Line Input jackMono input channel Mono Input channel Module Controls Stereo input channelSUM Inputs Stereo-specific Str Line In Mic PadSUM Front panel features Stereo EQ UT Module Master Faders Chan Level Chan SendsMix Send features XRM Stereo Input Module Front panel features Balanced Line Inputs Rear panel ConnectorsSplit-Out XLR jack Master section Solo Meters L & R Solo SystemHeadphone jack Phones Headphone/Monitor Level ControlBlock diagram- Mix Outputs Module Block diagram- Common Input12V Lamp jack STR Pair switchCommon Input Common Input LevelOutput Masters Master Fader Mix Output Level Peak/Signal LED + AFL Switch & indicatorMix Inserts and Outputs Bus InputsPage Solo and Monitor Circuits Rear panelMonitor Output Other Inputs and Outputs Common InputSolo Link Connectors Tie Mixers together AC Input Connector Pinout detailSolo Link Audio LinkingXLR Female Specifications Crest P/N D7000028