8
28. CIRCUIT BREAKER: The SVT-4 PRO employs an AC
line circuit breaker to help protect against damages due to
excessive current demands. If the amplifier stops working,
check the circuit breaker.
NOTE: When the circuit breaker opens, the button will be
protruding and showing a contrasting color. You can reset
the circuit breaker by pushing it in until it latches. The break-
er must cool down for a short time before the button will
latch. If the circuit breaker opens repeatedly with no signal
input, have the amplifier checked by a qualified service per-
son.
29. AC LINE IN: Firmly insert the supplied AC power cord
into this socket until it is fully seated. Plug the male end of
the cord into a grounded AC outlet. DO NOT DEFEAT THE
GROUND PRONG OF THE AC PLUG!
30. AC OUTLET (Domestic units only): This unswitched
outlet lets you connect any AC powered device (such as an
effects unit or an electronic tuner) up to a maximum of 300
watts. The jack is “hot” whenever the amplifier is plugged into
a live AC outlet, regardless of the setting of the amplifier’s
Power switch.
31. SPEAKER OUTPUTS: The Speakon
®
Jacks: Use of
these heavy-duty connectors is recommended when playing
at full output levels. Connect the amplifier to your speaker
cabinet(s) using heavy gauge speaker cables terminated
with the appropriate connectors. (See text to left of jacks for
pinout information.)
The 1/4” Jacks: These mono 1/4” jacks (two per channel,
wired in parallel) offer you a convenient method of connect-
ing the amplifier to your speaker(s) using cables terminated
with 1/4” plugs. (Whenever playing at full output levels, it is
recommended that you use the Speakon
®
jacks).
32. STEREO/MONO BRIDGE SWITCH: This switch sets the
operating mode of the amplifier. In the “out” position the
amplifier is in the Stereo Mode; with the switch in the “in”
position the amplifier is in the Mono Bridged Mode.
33,35. POWER AMP INPUTS: 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 Biamp Mode, Channel A =
Low (frequency) Input, Channel B = High (frequency) Input.
34,36. PREAMP OUTPUTS: These jacks are direct preamp
outputs for use with external power amplifiers, mixing
boards, external effects, etc. Connect these jacks to the
input jacks of an external amp using shielded instrument
cables.
37. EFFECTS BYPASS FOOTSWITCH: Connect a single
button footswitch to this jack for remote control of the Effects
Loop. Using a footswitch overrides the front panel Effects
Bypass switch.
38. GRAPHIC EQ/MUTE FOOTSWITCH: Connect a two
button 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.
39. BIAMP HIGH/LOW OUTPUTS: When used in the biamp
mode, the Biamp High Out jack connects to the high fre-
quency power amplifier and the Biamp Low Out jack con-
nects to the low frequency power amp. (See pages 12 and
13.)
The Rear Panel
SVT-4 PRO Bass Amplifier
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