channel is turned all the way down - otherwise a feed- back loop will exist which could cause oscillation and possible damage to speakers. Care must be taken to insure that the amplitude of the return signal is not too great for the preamp channel input. An input pad may be used if needed.
REVERB FOOTSWITCH. The Digital Reverb and Effects processer can be defeated by inserting an optional footswitch into the REVERB FOOTSWITCH jack. This allows the Reverb and Effects to be turned off and on remotely.
2-4-4. GEQ. OUTPUT. The output of the GRAPHIC EQUALIZER is present at the GEQ. OUTPUT jack; inserting a plug into this jack does not interrupt the normal signal path. The jack is useful for patching more power amplifiers into the system, for post-equal- izer recording and for inserting signal processing equipment (limiters, parametric equalizers, etc.) between the equalizer and the power amplifier (see Section 4-5).
2-4-5. GEQ. INPUT. The GRAPHIC EQUALIZER is prepatched to the main output signal. However, the GEQ. INPUT jack allows this “normalized” patch to be defeated; inserting a 1/4” phone plug into the jack disconnects the equalizer from the main signal and instead connects it to any signal carried by the phone plug. This allows the equalizer to be patched to other SR outputs or to other pieces of audio equipment.
2-4-6. AUX. INPUT. This input is generally used as a return from an external signal processing device (flanger, phase shifter, etc.). Signals present at this input are routed to the Main buss by way of the AUX. LEVEL control. In emergencies, it is possible to use the AUX. INPUT as a line level preamp channel, although it lacks the preamp channel’s equalization, monitor, and effects sends.
2-4-7. TAPE INPUTS. Patching the output of a stereo tape deck into the two phono (RCA) jacks produces a monophonic signal in the main mix. This is useful for playing music during breaks in the performance, or for performances where prerecorded music is required.
The TAPE INPUTS signal level is controlled by the AUX. LEVEL control.
2-4-8. TAPE OUTPUTS. connecting the two phono (RCA) TAPE OUTPUTS to a tape deck’s recording inputs allows monophonic signal from the MAIN OUTPUT to be recorded. The signal present at the TAPE OUTPUTS is pre-GRAPHIC EQUALIZER and its level is determined by the MAIN MASTER control.
2-4-9. PWR. AMP INPUT. Under normal circum- stances, the power amplifier receives its input from the GRAPHIC EQUALIZER. However, by inserting a 1/4” phone plug into the PWR. AMP INPUT jack, the normal signal path is broken and any signal carried by the phone plug becomes the power amplifier’s input. This
