Specifications; Power Amplifier Section; Preamp Section - Peavey 3120 Operating Manual

Footswitch
Lead Clean
Lead/RhythM ByPass
2
CABLE CONNECTOR
1
This 7-pin DIN connector is provided for connecting the footswitch to the amplifier RE-
MOTE SWITCH (20) via the cable included in the carton. Connections at the switch and
the amplifier should be made before the amp is powered up.
LEAD/RHYTHM SELECTOR
2
This switch selects between the Rhythm and Lead channels on the amplifier. The adja-
cent LED will illuminate when the Lead/Lead channel is selected. When the LED is dark,
the Rhythm/Rhythm channel is selected. The CLEAN SELECTOR (32) must be in the
BYPASS mode to activate either the Rhythm or Lead channel.
CLEAN SELECTOR
3
This switch selects the Clean channel and will activate regardless of the position of the
Lead/Rhythm SELECTOR (31). The adjacent LED will illuminate when the Clean chan-
nel is selected. This switch must be in the BYPASS position, indicated by a dark LED, in
order to utilize the Lead/Rhythm SELECTOR (31).
EFFECTS SELECTOR
4
This switch activates the amplifier's effects loop. The adjacent LED will illuminate when
the effects loop is active.
1
Effects
ByPass
3 4
14

Specifications

POWER AMPLIFIER SECTION:

Tubes:
Four EL34's with 12AX7 driver
Rated Power and Load:
120 W RMS into 16, 8, or 4 ohms
Power @ Clipping:
(Typically @ 5% THD, 1 kHz, 120 VAC line)
120 W RMS into 16, 8, or 4 ohms
Frequency Response:
±3 dB 50 Hz to 20 kHz @ 90 W RMS into 8 ohms
Hum and Noise:
Greater than 76 dB below rated power
Power Consumption:
Domestic: 400 W, 50/60 Hz, 120 VAC
Export: 400 W, 60 Hz, 220-230/240 VAC

PREAMP SECTION:

Tubes:
Three 12AX7
The following specs are measured @ 1 kHz with the controls preset
as follows:
Low and High EQ @ 10, Mid EQ @ 0
Rhythm and Lead Posts @ 10
Bass, Middle and Treble EQ @ 5
Effects Send @ 0
Effects Return @ 10
Master Level @ 5
Nominal Levels are with Pre Gain @ 5
Minimum Levels are with Pre Gain @ 10
Clean Channel:
Nominal Input Level: -20 dBV, 100 mV RMS
Minimum Input Level: -30 dBV, 30 mV RMS
Maximum Input Level: 0 dBV, 1.0 mV RMS
Rhythm Channel:
Nominal Input Level: -80 dBV, 0.1 mV RMS
Minimum Input Level: -90 dBV, 0.03 mV RMS
Lead Channel:
Nominal Input Level: -80 dBV, 0.1 mV RMS
Minimum Input Level: -90 dBV, 0.03 mV RMS
Effects Send:
Load Impedance: 47 k ohms or greater
Minimum Output: -10 dBV, 300 mV RMS
Maximum Output: 0 dBV, 1 V RMS
Effects Return:
Impedance: High-Z, 80 k ohms
Minimum Input Sensitivity: -10 dBV, 300 mV RMS
Maximum Input Sensitivity: 0 dBV, 1 V RMS
Line Output:
Load Impedance: 47 k ohms or greater
Adjustable Output: ±20 dBV, 0.1 V RMS-10 V RMS
REMOTE FOOTSWITCH:
Special 3-button unit with LED indicators (supplied)
System Hum and Noise @ Nominal Level:
(Clean channel, 20 Hz to 20 kHz unweighted)
Greater than 74 dB below rated power
(Special noise gate circuitry for Lead & Rhythm)
Equalization: (Clean channel only)
Custom Low, Mid, and High passive type EQ
Voicing:
(Rhythm and Lead channels only)
Active Bass, Middle, and Treble EQ
Boost/Cut ±12 dB
Dimensions and Weight:
11.0" (279 mm) H x 26.5" (673 mm) W x 11.0" (279 mm) D
52 lbs. (23.6 kg)
15