Mono Input channel 1
Front panel features
Channel Level and Control
This next set of controls allows the operator to control and monitor the overall level of the channel signal.
Mute Sw and LED
The Mute switch kills the channel signal and prevents it from feeding any Mix Send pots.The mute- element itself is a FET transistor, allowing for timed, ramped on-off control of the channel signal.This avoids any “pops and clicks” when muting a channel. Normally, the Mute will also affect the PRE signals of the channel (see Mix Send details). PRE can be selected for Mix Sends 1 thru 4, and is normally the Pre-fader channel signal.There are internal jumpers that allow the user to change the definition of this PRE signal on a channel by channel basis, or it can be specified at the time of order and reconfigured during the product build at the factory.The PRE signal can be changed from its normal Pre-Fader set- ting and redefined as either Pre-Insert or Pre-EQ.Additionally, the mute operation of the PRE signal can be changed from its default of “Follow Chan Mute” to “Ignore Chan Mute”.Again, this chan by chan option can be done either by the user or by the factory at the time of order.
Mute Switch UP, LED OFF
Channel is un-muted. Signal is allowed to pass (pre or post fader)to the Mix Send pots.
Mute Switch DOWN, LED ON
Channel is muted.The Post-Fader signal is prevented from reaching the Mix Send pots.The PRE signal (available for Mix Sends 1-4) is also muted unless the option has been changed to “Ignore Chan
Channel Level Pot
This rotary pot controls the level of Post-Fader signal sent to the individual Mix Sends. Mix Sends 5 thru 12 always receive this Post-Fader signal. Mix Sends 1 thru 4 have the option of selecting a Pre- fader signal by the use of the PRE button.
Continuously variable from OFF (full CCW) to +10dB gain (full CW).The panel is marked with the dB level of the channel, 0dB (unity channel gain) is at approx the 2-o’clock position.
PeaK / SIGnal LED
L E D This bi-color LED performs three functions:
1)Chan level; 2) Channel overload; 3) PFL status.
1)Varying intensity Green shows the pre-fader signal level
2)Red warns of channel clipping anywhere within the signal path. 3 points are monitored by the Peak circuitry: Input preamp, EQ circuit, and Fader amp. If any of these points come within 3dB of clipping, the LED will illuminate Red.
3)If the Chan PFL button is depressed, the LED will illuminate Red.
PFL Sw (and LED)
The XRM is equipped with a Stereo Solo system. Input Channels are monitored Pre-Fader (PFL), and outputs are monitored After-Fader (AFL).When a Mono channel is Solo’d, it appears in the Solo meters and headphone/monitor system as a mono signal (equal level to both sides).The Solo’d signal is Pre-fader, so the level feeding the Solo system is not affected by the setting of the Chan Lev pot.
Channel Pre-fader signal is sent to the Solo bus and displayed on the Solo meters and can be heard on the Headphone and Monitor outputs.The chan PK/SIG LED will illuminate RED, indicating that the PFL button is depressed.The Solo system is additive, so any and all channels that have their PFL switches depressed will be mixed together and monitored by the Solo system.
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