Ampeg SVT-VR User Manual

SVT-VR Bass Guitar Amplifier
6
11. TREBLE: Use this to adjust the high
frequency level of channel two. This
provides up to 12 dB of boost, or
12 dB of cut at 4 kHz. The high
frequency output is flat at the center
position.
12. BASS: Use this to adjust the low
frequency level of channel two. This
provides up to 12 dB of boost, or
12 dB of cut at 40 Hz. The low
frequency output is flat at the center
position.
13. ULTRA-HI: This switch, when engaged
[right side down], enhances the amount
of high frequency output of channel two.
The amount of boost is dependent on
the setting of the volume control [10].
14. ULTRA LO: This switch, when engaged
[right side down], enhances the low
frequency output of channel two.
The Front Panel continued
15. STANDBY SWITCH: Use this switch to
turn the standby power on or off. Flick
the switch up to turn the standby on.
The standby mode allows the tubes to
warm up or remain warm without high
voltage being applied to them. This
helps extend tube life. This switch should
be OFF when first turning the amplifier
on. Allow the unit to warm up for at least
20 seconds before switching to the ON
position. During short periods of
non-use, the amp should be put into
standby mode.
16. POWER SWITCH: Use this switch to
turn the overall system power on or
off. Flick the switch up to turn on the
power. The power switch should be
engaged prior to the standby switch
(as mentioned above, #15). This
switch must be turned off to reset
the amp after a Fault condition. The
adjacent lamp illuminates green when
the amplifier is on and is not in
standby mode.
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Ampeg SVT-VR Specifications

Output Power

output power rating	300 Watts RMS minimum continuous @ <5% THD into 2 or 4 ohms, 0.25V RMS input

Tone Control Range

channel one treble control range	±12dB @ 4kHz
channel one midrange control range	±20dB @ 220, 800, or 3kHz
channel one bass control range	±12dB @ 40Hz
channel one ultra high control range	+15dB @ 8kHz (volume @ 50%)
channel one ultra low control range	-20dB @ 600Hz
channel one bass cut control range	-20dB @ 40Hz
channel two treble control range	±12dB @ 4kHz
channel two bass control range	±12dB @ 40Hz
channel two ultra high control range	+15dB @ 8kHz (volume @ 50%)
channel two ultra low control range	-11dB @ 40Hz (relative)

Signal and Noise

signal to noise ratio channel one	75dB typical
signal to noise ratio channel two	75dB typical

Tube Complement

12AX7 tubes	4
12AU7 tubes	4
6550 tubes	6

Power Requirements

power requirements 120VAC	60Hz, 400VA
power requirements 100/115VAC	50/60Hz, 400VA
power requirements 230VAC	50/60Hz, 400VA

Size and Weight

width	24”
height	11-1/2”
depth	12-3/4”
weight	85 lbs