features overview 3
front panel
1Rack Mounting Ears
Two
2Channel Level attenuators
Two input attenuators adjust level for their respective amplifier channels. In Bridged Mono and Parallel modes, the channel A attenuator controls overall signal level (see rear panel mode switch description).
3Protect
This Red LED indicates that the amp channel is in Protect mode. During Power up, the amp briefly goes into protect mode in order to prevent any loud spikes from being fed the speakers. After a few seconds the amp comes out of protect mode and is ready for normal operation. If the amp stays in Protect mode, this indicates that there may be a problem internal to the amp. If the amp goes into Protect mode during operation this indicates that either a problem has developed internal to the amp or the amp is being
4ACL / IGM
This Red LED illuminates when either the ACL or IGM protection circuitry is engaged. See Section 6,Tourclass Protection for more information on these
5-24, -18, -6, 0dB
The first three LEDs
6Signal
Green LED varies in intensity in response to signals below
7Active
Green LED illuminates when the amp is on to show that the channel is active.
8Fan Outlet Grill
LT & ST Series amplifiers are cooled by a single
Cool air flows over the heat sink and exhausts through the front grill.
Make sure this outlet remains clear to allow unrestricted airflow.
9Power switch
This switch turns the amp on and off. If the amp doesn’t turn on when the switch is in the ON position, check the circuit breaker on the rear panel.
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