Bass Amplifier
The Front Panel:
4
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10
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10
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10
1
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7
1: 0dB INPUT: Use this 1/4” jack to connect your instrument to the amplifier by
means of a shielded instrument cable. If your instrument has active electronics or
high output pickups, or if the amplifier distorts at low settings of the Gain control
(#3), use the -15dB Input jack (#2).
2: -15dB INPUT: If your instrument has active electronics or high output pickups,
use this 1/4” jack to connect your instrument to the amplifier by means of a shield-
ed instrument cable. The input signal is attenuated 15dB to prevent overdriving the
amplifier’s input stages.
3: GAIN: Use this control to adjust the level of the input signal.
4: CONTOUR: Use this control to adjust the tone of the input signal. The Contour
control selects the frequency where the effect is centered, giving you a wide vari-
ety of tone variations – from a studio “V”-shaped tone to a more up-front, “live”
sound. This control is only active when the Contour Active switch (#5) is depressed.
5: CONTOUR ACTIVE: This switch, when depressed, activates the Contour con-
trol (#4).
6: LOW: Use this control to adjust the bass response of the amplifier. Rotating the
control counterclockwise reduces the low frequency output. Rotating the control
clockwise increases the low frequency output. The Low control provides a range of
28dB of boost or cut at 60Hz.
7: LO MID: Use this control to adjust the “thickness” or “fatness” of the amplifier.
Rotating the control counterclockwise reduces the lower middle frequency output.
Rotating the control clockwise increases the lower middle frequency output. The
Low Mid control provides a range of 15dB of boost or cut at 400Hz.
8: HI MID: Use this control to adjust the clarity and definition of the string attack.
Rotating the control counterclockwise reduces the upper middle frequency output.
Rotating the control clockwise increases the upper middle frequency output. The
High Mid control provides a range of 18dB of boost or cut at 1kHz.
