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BFX100 Bass Amplifier
The Front Panel:
INPUT
1
2
1. INPUT: The signal output from an instru-
ment (active or passive) or a line level signal
may be connected here by means of a
shielded instrument cable.
2. -15dB/0dB: This switch, when depressed,
attenuates the input signal by 15dB.
Attenuation allows the Gain control (#3) to be
functional over a larger portion of its range. If
the Gain control is near minimum and the
Peak LED (#4) is flashing (indicating clipping
of the input signal), attenuation is needed.
3. GAIN: This serves as the input signal level
control for the amplifier, allowing you to
adjust the amplifier for the best signal to
noise ratio.
4. PEAK LED: This LED flashes when the
signal level into the preamp approaches clip-
ping. Adjust the Gain control (#3) until a
strong signal from your instrument causes
this LED to flicker.
NOTE: If the LED flashes frequently with the
gain control at a low setting, use the -15dB
pad (#2) to attenuate the input signal, then
readjust the gain.
5: CONTOUR SHAPE: This control is only
active when the Contour Active switch (#6) is
CONTOUR
3 4
5
6
EQUALIZATION
7
depressed. The setting of this control shifts
the frequency where the contour effect is
centered, giving you a wide variety of tonal
variations, from a studio "V"-shaped tone to a
sound that's more "live" and up-front.
6: CONTOUR ACTIVE: This switch, when
depressed, activates the Contour Shape con-
trol (#5).
7. GRAPHIC EQ: Use these sliders to adjust
the output signal to best suit your playing
style, to match room acoustics, and to get the
best overall sound. The sliders control the
output of the frequencies indicated below
each control. The center position of each
control is flat (no boost or cut).
8. MASTER LEVEL: This is the overall out-
put level control for the amplifier.
9. LIMIT: The BFX100 uses an internal limit-
ing circuit to assist in keeping the power
amplifier's output "clean" at extreme volume
levels. (All amplifiers begin to clip their output
signals as they approach maximum output
levels, resulting in distortion which may dam-
age the speaker.) Whenever the amplifier is
at full power, this LED will flash. This is an
indication that the limiter is keeping peak sig-
nals from clipping the output.
MASTER
9
8
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