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SVP-PRO Bass Preamp
The Front Panel:
1. INPUT: Use this jack to connect your
bass to the preamp by means of a shielded
instrument cable.
2. MUTE: This switch, when depressed,
mutes the signal at all output jacks except
the Tuner Out jack (#27).
3. PAD: This switch, when depressed,
attenuates the input signal by 15dB. If your
bass has active pickups, depress this
switch to better accommodate its output
signal.
4. GAIN: Use this control to adjust the
level of the input signal. When properly set,
the Peak LED (#5) will flash on strong sig-
nals. For the best signal to noise ratio set
the Gain control to the highest useable set-
ting and adjust the Drive and Master con-
trols (#8, 18) to obtain the desired output
level.
5. PEAK/MUTE LED: This LED illuminates
when the preamp signal approaches clip-
ping. When the Mute switch (#2) is
engaged, this LED stays on as a visual
indicator that the Mute function is active.
6. BRIGHT: This switch, when depressed,
boosts the upper mid and high frequencies.
7. ULTRA LO: This switch, when de-
pressed, provides emphasis to the low end
by boosting the low frequencies and cutting
the mid frequencies.
8. DRIVE: Use this control to adjust the
level of the distortion. In the fully counter-
clockwise position the preamp is in the
cleanest, traditional SVT condition. As the
control is rotated clockwise, the distortion
level is increased. The tone of the signal is
also changed to provide a smoother over-
drive. The tone controls may have to be
readjusted to obtain the desired tone. The
Gain control (#4) and Pad (#3) interact with
the Drive control. For greater overdrive, the
Pad switch (#3) should be out and the
Drive control should be rotated fully clock-
wise. Use the Gain control (#4) to set the
amount of overdrive desired. The Peak
LED (#5) will remain illuminated when the
amplifier is used in this manner.
9. BASS: Use this control to adjust the low
frequency output level. This control pro-
vides 12dB of cut or boost at 40Hz.
10. MIDRANGE: Use this control to adjust
the mid frequency output level. This control
provides 15dB of cut or 12dB of boost at
the frequency selected by the Frequency
control (#11).
11. FREQUENCY: Use this control to
select the center frequency for the
Midrange control (#10). The center fre-
quencies are 220Hz, 450Hz, 800Hz,
1.6kHz, and 3kHz.
12. TREBLE: Use this control to adjust the
high frequency output level. This control
provides 12dB of cut or boost at 4kHz.
13. GRAPHIC EQ: This switch, when
depressed, activates the Graphic EQ.
(When using a footswitch, #23, to control
the Graphic EQ, this switch must be
depressed.)
14. ULTRA HI: This switch, when
depressed, boosts the frequencies above
those affected by the Bright switch (#6).
15. GRAPHIC EQ : Use these controls to
adjust the amplitude of the signal at the fre-
quency stated above each slider.
16. GRAPHIC EQ LEVEL: Use this control
to adjust the overall output level of the
Graphic EQ.
17. GRAPHIC EQ ACTIVE/PEAK LED:
This LED illuminates yellow when the EQ
section is active. This LED will flash when
the amplitude of the Graphic EQ signal
approaches clipping.
18. MASTER: Use this control to adjust
the overall output signal level.
19. POWER INDICATOR LED: This LED
illuminates green when the preamp is on.
20. POWER: Use this switch to turn the
preamp on (side of switch with the dot
depressed) and off (side of switch without
the dot depressed).
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