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Manafacture: Crest Audio File size: 8.91 mb File name: Language of manual:

If nothing is plugged into the jack, a padded XLR signal is available to the channel when the LINE switch is depressed.This allows the LINE switch to perform a dual function: XLR pad if nothing is plugged into the Line jack, or XLR(Mic)/Line input selection if the jack is being used. Tip is Positive Input, Ring is Negative Input, Sleeve is Chassis Ground. . Input impedance is 20K balanced. 3 Master Section X 18R™ / X 20R™ Owner’s Manual Module Block Diagram Controls p. 32 Master Section 3 Front Panel Features The X 18R & X 20R have a comprehensive output section, including meters, master level controls and a flexible group assignment section. Headphone Control Section In normal use, the headphones are used to monitor the Solo system.The Solo system is made up of anything that is PFL’d (pre-fader-listen) or AFL’d (after fader listen). The hierarchy of what appears in the headphones when nothing is soloed, or when the SOLO OFF button is pressed is as follows: The Selected Monitor Source when FROM MONITOR is engaged. The TAPE IN signals whenTAPE IN is engaged and FROM MONITOR is not engaged. LEFT and RIGHT masters when neither FROM MONITOR nor TAPE IN are engaged. NOTE: Only the selected source is fed to the Headphones.The different sources do not com bine together if multiple switches are depressed. Headphone jack This 1/4” TRS jack is intended for stereo headphones.It can also be used as a stereo control- monitor output from the mixer. From this jack you can get a number of signals, including SOLO, Left, Right & Mono, and Monitor/Tape feeds. Headphone level This knob controls the level that appears at the Headphone Jack. SOLO OFF Solo (PFL or AFL) overrides the default headphone signals unless this button is depressed. Whenever something is Soloed, it appears in the headphones. Soloed signals do not appear in the headphones. Useful if an additional L/R feed is needed. FROM MONITOR The post-level control MONITOR output becomes the signal in the headphones when nothing is soloed.This overridesTAPEINif the TAPEINbutton is depressed. TAPE IN The TAPE IN signals appear in the headphones when the FROM MONITOR button is not depressed and nothing is Soloed. ADD MONO to Phones and ALT OUT (Recessed Switch) The Mono signal can be added to the LEFT and RIGHT signals at the Phone out, and also to the ALT OUT jacks on the rear panel.The switch is recessed to prevent it from accidentally being changed. The default signal at the Headphone output and the ALT OUT jacks is the stereo LEFT/RIGHT mix, the Mono bus is not heard. In addition to the LEFT/RIGHT mix at he the Headphone output and the ALT OUT jacks, the MONO master signal is blended in. 3 Master Section X 18R™ / X 20R™ Owner’s Manual Module Controls Block Diagram p. 34 Master Section 3 Front Panel Features 12V Lamp Jack ATNC jack is available for attaching a goose-neck lamp.The center connection is 12 Volts DC and the outer connection is ground. A medium or high-intensity incandescent or LED 12V DC Littlite can be used.The output voltage is current limited to prevent faulty bulbs or mis-connection from harming the internal workings of the mixer. LED Meters -Left And Right A pair of LED arrays are provided for monitoring the output levels.They follow the SOLO system, making it easy to adjust input and output levels by PFL’ing and AFL’ing different sources.They normally show the LEFT and RIGHT output levels.When something is Soloed, that signal replaces LEFT and RIGHT on the meters. SOLO LED This red LED lights up when anything on the mixer is soloed. PWR LED This green LED illuminates to indicate that the mixer is powered up. TAPE IN Level On the rear panel there are Left and Right TAPE IN connectors, both 1/4” TRS and RCA.They can be used to bring in a stereo source such as a two-track playback from tape,CD,MD,or a sampler.This knob controls the level to theAux 1/2 and Left/Right buses. TAPE IN Assignment TOA1-2 This assigns the stereoTAPEINtoAuxes 1 and 2,which are configured as a stereo pair. This is useful for stereo program monitoring. TO L-R Thisassignsthe stereoTAPEINfeedtothe LeftandRightmixbuses. Thisis useful for in-between-set background music and as an extra stereo return. 3 Master Section X 18R™ / X 20R™ Owner’s Manual Module Block Diagram Controls p. 36 Master Section 3 Front Panel Features AUX OUT 1-2 Level Control This is the master stereo output level control for the AUX 1/2 pair. Aux 1-2 AFL This button assigns the AUX 1/2 stereo pair to the solo system. Since it is AFL, the signal is monitored after the AUX insert and master level control. Auxes 1 & 2 show up in stereo in the system (1 on the left and 2 on the right). AUX OUT 3, 4, 5 & 6 Level Control These are the master output level controls for Auxes 3, 4, 5 & 6. Aux 3,4,5,& 6AFL These buttons assign Auxes 3, 4, 5 & 6 to the solo system. Since they are AFL, the signals are monitored after the AUX inserts and master level controls.These Auxes are always monitored as a mono signal in the Solo syste...

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