Crate Amplifiers BFX50 owner manual BFX25/50 Bass Amplifier, The Front Panel

BFX25/50 Bass Amplifier

INPUT	CONTOUR	EQUALIZATION	MASTER	DSP
				BFX50
		ACTIVE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

The Front Panel:

1.INPUT: The signal output from an instrument (active or passive) or a line level signal may be connected here by means of a shielded instrument cable.

2.GAIN: This serves as the input signal level control for the amplifier, allowing you to set the amplifier for the best signal to noise ratio.

3:CONTOUR SHAPE: This control is only active when the Contour Active switch (#4) is depressed. The set- ting of this control shifts the frequency where the con- tour effect is centered, giving you a wide variety of tonal variations, from a studio “V”-shaped tone to a more “live”, more present sound.

4:CONTOUR ACTIVE: This switch, when depressed, activates the Contour Shape control (#3).

5.LOW: This is the low frequency control which allows for a19dB range of cut or boost at 60Hz.

6.LOW MID: This is the lower-midrange frequency control which allows for a 25dB range of cut or boost at 200Hz.

7.HIGH MID: This is the upper-midrange frequency control which allows for a 19dB range of cut or boost at 1kHz.

8.HIGH: This is the high frequency control which allows for a 38dB range of cut or boost at 10kHz.

9.MASTER LEVEL: This is the overall output level control for the amplifier.

10.DSP MODE: Select the type of digital effect(s) applied to the signal with this control. Each effect and its central location is called out by the markings around the control. The effects are described as follows:

DELAY: Slapback delay effect

ECHO: Long delay effect with regeneration CHORUS: Chorus effect

FLANGE: Light flange effect

FUNK-WAH:Touch-sensitive wah-wah (“T-Wah”) effect OCTAVE: Adds secondary note one octave lower

than original note

CHO/HALL: Chorus effect with large hall reverb effect RM: Small room reverb effect

HALL: Large hall reverb effect

11.DSP LEVEL: This is the output level control for the selected DSP effect(s). For a dry signal (no effect), rotate the control full counter-clockwise. Rotating the control clockwise increases the magnitude of the DSP effect(s) applied to the signal.

12.HEADPHONES: For private listening, connect a pair of stereo headphones into this jack. The internal speaker is disconnected when headphones are plugged in. This jack may also be used to tap a line level signal from the amplifier, for connecting to a recording console, house sound board, amplifier, etc. (Remember that using this jack disconnects the inter- nal speaker.)

13.SPEAKER: Use this jack to connect the amplifier to an external speaker cabinet with a minimum imped- ance rating of 4 ohms for the BFX25 and 8 ohms for the BFX50. The internal speaker is disconnected when this jack is used.

14.ON LED: This LED will illuminate when the ampli- fier is turned on.

15.POWER: This switch applies AC power to the amplifier. The amplifier is ON when the side of the switch with the indicator (“I”) is depressed.

16.AC LINE CORD (rear panel, not shown): Plug this cord into a properly wired, grounded, 120 volt, 60 cycle AC outlet. DO NOT attempt to defeat the ground connection of this power cord! If your ampli- fier was purchased outside of the United States, see the unit’s rear panel labeling for its power rating, and follow the above guidelines.