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The Master Program Faders also affect the Aux In signal
level, as well as the program mix from the input channels.
In practice, the Aux In Volume controls determine the
Proportion of the Aux In signal to the mixed signal from
the input channels. On the ЕМ-10011 and EM-15011B, the
incoming Aux signals are fed directly to the Left and
Right program buses. The EM-200B and EM-300B also
have Aux Pan controls which position each incoming
Auxiliary signal left-to-right in the stereo perspective.
Note that the Aux signal does not appear in the
Monitor outputs.
OTHER FEATURES
To use an external reverb or echo device, connect the
Mixer's Echo Send jack to the input of the external
device, and connect the output from that device to the
mixer's Echo Return jack. Operate the Mixer's Reverb/
Echo controls normally. Other types of accessory
devices such as tremolo, phase-shifters, digital delays,
or "pedal devices" may be connected between the
Echo Send and Echo Return jacks for special effects,
solong as the levels are compatible.
The nominal output level at the Echo Send jack is
—20 dB. The nominal input sensitivity at the Echo
Return jack is —30 dB. While these are commonly used
operating levels, there are reverb, echo and delay devices
available that are designed to operate at lower and/or
. higher nominal levels. A device designed to operate at
guitar pickup (i.e. very low line) levels may be over-
driven by the Echo Send jack, causing distortion, or
may have such a low-level output (below —30 dB) that
it will produce excessive noise in the Echo Return
circuit. Such a device should probably be connected
between the instrument and the Mixer's input channel.
A device designed to operate at high line levels (say
—10 to +4 dB) may not be adaquately driven by the
Echo Send jack, or may produce an output that over-
drives the Echo Return jack and causes distortion in
the Mixer. This type of device may be driven from the
Monitor 1 output which has a nominal +4 dB level. If
the nominal output level of the device is only slightly
higher than the —30 dB sensitivity of the Echo Return
jack, (say —20 dB), return the effects to the Echo
Return jack, and lower the level with Master Reverb/
Echo. If the output level is too high for this jack, the
effects may be returned through an unused input
channel; in this case the selected input channel's
Monitor 1 Send must be kept closed to avoid feedback.
The internal spring reverb is disconnected from the .
program whenever a plug is inserted in the Echo Return
jack. To patch the Mixer for use of the internal reverb
device and an external device, connect the mixer's
Echo Send jack to the input of the external device and
connect the output of that device to the mixer's .
Aux Input jacks. With the EM-200B or EM-300B, the -
Aux Pan controls may be used to position the mono
external signal in the stereo mix. With the ЕМ-10011
or ЕМ-150118, a "Y""-adapter cable allows a mono
reverb or echo unit to feed both Aux In jacks. You can
then fade out the external Echo.using the Aux Volume
control (s) and fade in the internal reverb with the —
Master Reverb/Echo control - or vice versa. If you like
the effect of both devices together, you can mix them
by bringing up both the Aux volume and Master
Reverb/Echo controls.
Е
External Echo
Use of external echo device only. (Built-in reverb
automatically disconnected.)
Controls internal
effects level
Controls external
effects level
©. ©. Q.
AUXIAL
AUXINA
REVERS/ECHO
ООО.
LEFT
— PROGRAM
— RIGHT
MONITOR
1
18
2
Optional "Y" adaptor
or stereo echo return
External Echo
Use of BOTH
internal reverb and external echo
device. (Alternately or simultaneously)
independent of Master Monitor Faders and Graphic
Equalizers.
13
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