Crate Amplifiers BFX100 Bass Amplifier The Front Panel, Input, Contour, Equalization, Master

BFX100 Bass Amplifier

The Front Panel:

INPUT CONTOUR EQUALIZATION MASTER

1 2 3 4 5 6 7 8 9

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

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.