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SVT-4 PRO Bass Guitar Amplifier
12
31. STEREO / MONO BRIDGE SWITCH:
This switch sets the operating mode of
the amplifier. In the “out” position, the
amplifier is in Stereo Mode; with the
switch in the “in” position, the amplifier
is in Mono Bridged Mode.
32, 34. POWER AMP IN: These jacks
connect directly to the internal power
amp for use with external preamps.
When using external sources, connect
the OUTPUT of the sources to these
jacks using shielded instrument cables
to feed the signals into the power
amp sections. The internal signal is
disconnected when a plug is inserted.
In the Mono Mode, Channel A = Input.
In the Bi-amp Mode, Channel A = Low
(frequency) Input, Channel B = High
(frequency) Input.
33, 35. PREAMP OUT: These jacks are
direct post master preamp outputs for
use with external power amps, mixers,
external effects, etc. Connect the
external amp’s input to these jacks
using a shielded instrument cable.
36. EFFECTS BYPASS FOOTSWITCH:
Connect a single button footswitch
to this jack for remote control of the
Effects Loops. The footswitch overrides
the front panel Effects Bypass switch.
NOTE: A footswitch may be purchased
through your favorite Ampeg Dealer. Be sure
to ask for model #AFP1.
37. GRAPHIC EQ / MUTE
FOOTSWITCH: Connect a dual
footswitch to this jack for remote Mute
and EQ On/Off control. On the stereo
1/4" plug, the tip controls Mute and
the ring controls EQ On/Off. The EQ
footswitch overrides the front panel
switch and the Mute function is
available from either location.
NOTE: A footswitch may be purchased
through your favorite Ampeg Dealer. Be sure
to ask for model #AFP2.
...OR order model #AFP3 which may be used
for FX, EQ and Mute!
38. BI-AMP HIGH / LOW OUTPUTS: When
used in the bi-amp mode, the Bi-amp
High Out jack connects to the high
frequency power amplifier and the
Bi-amp Low Out jack connects to the low
frequency power amp. [See pages 5–7].
39, 40, 43, 44. TRANSFORMER
BALANCED LINE OUTPUTS: These
jacks supply a balanced signal for
connecting to a house mixing board,
recording console or external amplifiers.
The signal level at these jacks is
controlled by the front panel Line Out
Level control [16] and is governed by
the Stereo / Mono switch [41] and the
Pre / Post switch [42].
41. LINE OUT STEREO / MONO SWITCH:
1+ HOT, 1–
BIAMP HIGH
INPUT MONO BRIDGE INPUT
BIAMP LOW/
40 41 42 43 44 45 46 47 48
31 32 33 34 35 36 37
1+ HOT, 1–
29
38 39
30
1+ HOT,1– RETURN
28
The Rear Panel continued
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