12 3
4
5 6 7 8 910
12 13 14
16
HIGH GAIN INPUT (1)
Used for most electric guitars. It is 6
louder than the Low Gain input.
LOW GAIN INPUT (2)
Provided for instruments that have extremely high outputs, which can result in overdriving (distorting) the High Gain
input. If both inputs are used simultaneously, the output levels are the same (both are Low Gain).
PRE GAIN (3)
Controls the input volume level of the amplifier.
PRE-EQ PATCH JACKS (4)
Provided for connecting external effects devices into the signal path. To patch an effects device, connect the send jack to
the input of the device. Connect the output of the device to the return jack. High-quality shielded cables should be used for
these connections.
OPERATION NOTE:
Volume pedals may be patched in at this point; pedal output should be patched into “return”, and “send” should be
patched into pedal input. Instrument should connect directly to high or low gain inputs when volume pedal is connected in
this configuration
LOW EQ (5)
An active tone control (shelving type,
15
that varies the low frequency range. CAUTION: Excessive low frequency
boost causes greater power consumption and increases possibility of speaker damage.
MID
(6)
A passive tone control that adjusts mid frequencies.
SHIFT (7)
Shifts and selects the frequencies at which the Mid control operates.
HIGH EQ (8)
An active tone control (peak/notch type,
15
that varies the high frequency range.
PRESENCE (ACTIVE) (9)
An active tone control
that varies the extreme high frequency range. 0 to
boost (increase).
SENSITIVITY (10)
Controls the overall volume level of the amplifier. The final level adjustment should be made after the desired sound has
been achieved.
EFFECTS PATCH 1 (11)
Provided for connecting external effects devices into the signal path. To patch an effects device, connect the send jack to
the input of the device. Connect the output of the device to the return jack. High-quality shielded cables should be used for
these connections.
EFFECTS PATCH 2 (12)
Provided for connecting external effects devices into the signal path. To patch an effects device, connect the send jack to
the input of the device. Connect the output of the device to the return jack. High-quality shielded cables should be used for
these connections.
REVERB (13)
Reverberation is an echo effect. Rotate clockwise to increase the effect. Remote footswitch can control On/Off.
PILOT LIGHT LED (14)
Illuminates when AC power is being supplied to the amp.
GROUND SWITCH (15)
Three position rocker-type switch which, in most applications, should be operated in its center or zero position. There
may be some situations when audible hum and/or noise will come from the loudspeaker. If this situation arises, position
the ground switch to either positive or negative or or until the noise is minimized. NOTE: Should the noise problem
continue, consult your Authorized Peavey Dealer, the Peavey Factory, or a qualified service technician. THE GROUND
SWITCH IS NOT FUNCTIONAL ON
VOLT MODELS.
POWER SWITCH (16)
Depress the switch to the “On” position. The red pilot light (LED) will illuminate indicating power is being supplied to the
unit.
Summary of Contents for Session 400
Page 1: ......
