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BFX-220H Bass Amplifier
The Front Panel:
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1. INPUT: Use this jack to connect your
instrument to the amplifier by means of a
shielded signal cable.
2. GAIN: Use this control to adjust the input
signal level. For the best results, the "OK"
LED (#4) should illuminate when playing at
normal levels. If the "Decrease Gain" LED illu-
minates with the Gain control at low levels,
depress the -15dB switch (#3) and adjust the
Gain control accordingly.
3. -15dB SWITCH: This switch, when
depressed, attenuates the input signal by
15dB. If your bass has active electronics or
"hot" pickups, or if the "Decrease Gain" LED
(#4) illuminates with the Gain control (#2) at
low levels, depress this switch.
4. LEVEL LEDS: Use these LEDs to proper-
ly set the Gain control (#2) by following the
above instructions until the "OK" LED illumi-
nates when playing at normal levels.
5. CONTOUR: Use this control to adjust the
tone of your instrument. This control is active
only when the Contour On/Off switch (#6) is
depressed.
6. CONTOUR ON/OFF: This switch, when
depressed, activates the Contour control (#5).
7. GRAPHIC EQUALIZER: Use these eight
sliders to adjust the frequencies indicated
beneath each one to custom-tailor your
sound or to compensate for room acoustics.
8. MASTER LEVEL: Use this control to
adjust the output level of the amplifier. This
control affects the signal level at the
Headphones jack (#14), the Preamp Out jack
(#19), and the Speaker jacks (#22).
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9. LIMIT LED: This LED illuminates whenev-
er the internal limit circuitry is activated. The
limiter prevents the output from sounding dis-
torted even at high volume levels. Under nor-
mal playing conditions, this LED will flash
occasionally. If this LED remains illuminated,
reduce the Master Level control (#8) until the
LED flashes.
10. LINE OUT LEVEL: Use this control to
adjust the signal level at the Balanced Line
Out jack (#23).
11.
POST EQ/PRE EQ SWITCH:
switch, when depressed, sends a post-EQ
signal to the Balanced Line Out jack (#23).
The post-EQ signal is affected by the settings
of the Gain control (#2), the Contour control
(#5), the Graphic Equalizer (#7), and the DSP
controls (#15, #17). With the switch in the out
position, the signal at the Line Out jack is pre-
EQ and is not affected by any of the afore-
mentioned controls.
12. EFFECTS BLEND: Use this control to
adjust the amount of effect applied to the sig-
nal from the external effects loop (#24, #25).
With the control fully counter clockwise, no
effects are applied to the signal. As you rotate
the control clockwise the amount of effects
applied to the signal increases. Setting the
control to the 12 o'clock position ("5") gives a
50/50 blend of dry signal and effects.
13. HEADPHONES LEVEL: Use this control
to adust the signal level at the Headphones
jack (#14).
14. HEADPHONES: Use this jack to connect
a pair of stereo headphones, for listening in
private. The signal at this jack is post Gain,
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with
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S
P
igital
ignal
rocessing
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post EQ, and post Effects. The signal level at
this jack is adjusted by the Headphones Level
control (#13). Using the Headphones jack
does not affect the signal at the Speaker jacks
(#22). This jack may also be used to send a
signal to a tuning device.
15. DSP LEVEL: Use this control to adjust
the level of the Digital Signal Processing
applied to the signal.
16. FOOTSWITCH: Use this jack to connect
the supplied single button footswitch for
This
remote on/off control of the DSP effects.
17. DSP SELECTOR: Use this control to
select the type of digital effect(s) applied to
the signal. The effects are described as fol-
lows:
DELAY: Slapback delay effect
ECHO: Long delay effect with
regeneration
CHORUS: Moderate chorus effect
FLANGE: Light flange effect
FUNK-WAH: Touch-sensitive wah-wah
("T-Wah") effect
OCTAVE: Adds a secondary signal one
octave lower than the original
signal
CHO/HALL: Moderate chorus effect with
a large hall reverb effect
RM: Small room reverb effect
HALL: Large hall reverb effect
18. POWER: Use this switch to turn the
amplifier on (top of the switch depressed)
and off (bottom of the switch depressed).
This switch illuminates when the amplifier is
turned on.
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