Yamaha RM804 - RM804 Control Panel Operation; Input Channel Controls; Signal Routing Controls

CONTROL PANEL OPERATION
INPUT(CH! —8)
PAN
INPUT
GAIN
LINE MIC
HIGH
MID
LOW
ECHO
STEREO
PAN
STEREO
10
INPUT SECTION
© CHANNEL FADER
The Fader continuously varies the channel output level to the four program mixing busses.
The nominal setting is "—10" position, as indicated by a heavier calibration line. When the -
input signal is the same level as the Input Level switch setting, the nominal Fader setting
applies an optimum level to the mixing busses; if the Master Fader is also at nominal, the
mixer output level will be —10dB. The Fader is calibrated in dB of attenuation.
STEREO MIX CONTROL
Adjusts the level of the TAPE IN or post-fader channel signal sent to the STEREO mixing
buss.
STEREO PAN
This rotary control assigns the output of STEREO mix control to the Stereo mix busses,
anywhere from all the way left to all the way right. Centering the Pan pot places the signal
equally in both busses (sound is centered); at this point, each bus is fed a signal Зав below
the maximum full-left or full-right panned level. This ensures that the combined stereo
output power remains constant as the signal is panned.
О POST/TAPE SWITCH
Selects the signal sent to the ECHO and STEREO contro!s. In the POST position the post-
fader channel signal is sent to the ECHO and STEREO controls, and in the TAPE position
the TAPE IN signal is sent to these controls.
Ө ECHO MIX CONTROL
Adjusts the ievel of the TAPE IN or post-fader channel signal sent to the ECHO mixing buss.
Ө EQUALIZER
The Low, Mid and High EQ controls alter the channel's frequency response with up to 15dB
of boost (clockwise rotation} or cut (counterclockwise rotation). Continuously variable
shelving-type equalization is provided at 100Hz (Low) and 10kHz (High); peaking equaliza-
tion is provided at 2kHz (Mid). Refer to the illustration. The controls are calibrated in dB;
centering them in the “0” position ensures flat audio response. In many mixes, EQ is used to
modify tonal characteristics for better separation (i.e., given two similar-sounding instru- :
“ments, you might boost one with the Mid control and boost the other with the High control}.
АРА
ДА HUI
A | ———
RESPONSE (dB)
FREQUENCY (Hz)