Alto PBM4 Owner's Manual page 10

15 POWER AMPLIFIER OUTPUT
The TWO jacks are used to output the main mix signal into external passive
speakers.
16 MONITOR OUTPUT
This jack is used to connect the input of external active monitor speaker or
power amplifier. If you connect a stereo amplifier you can use it in PARALLEL
MONO Mode. In this way you will use only one input channel of the amplifier
but you still have available 2 separate output channels each one with its own
volume control.
17 FOOTSWITCH
You can connect an optional external footswitch to turn on/off the onboard
multieffects module. It is a 1/4 " phone jack.
18 FX SEND
This 1/4" phone socket is used to send out the signal from the AUX bus of
the input channels into external devices such as effect units.
19 FX RETURNS
You can use this stereo 1/4" phone socket to return the signal of an effect
unit to the Main Mix. Alternatively you can use IT as an extra auxiliary input
using the AUX RETURN level control as volume control.
DSP SECTION
Your PBM4 features a 24-bit, 16-presets digital multieffects including reverbs,
chorus, vocal and delay, e c.
20 PRESETS
Adjust this knob to select the desired effect.
21 AUX/DFX RET
This control is used to adjust the level of the return signal coming from
external/internal multieffect effect. The signal of the AUX RETURN will be
sent to MAIN MIX OUTPUT. If you connect a sound source to the FX RETURN
input such as CD Players, etc, you can use this knob to control the input level
of such source.
22 DSP MUTE
This switch is used to activate/deactivate the resident multieffect. Alternatively,
you can also use the FOOTSWITCH jack.
4. CONTROL ELEMENTS
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