Ampeg B4R manual Some Suggested Settings, Rack Mounting

B4R Bass Amplifier

Some Suggested Settings

Since so many variables affect the actual sound of any system, the following settings are offered as starting points to help you find the exact sounds your playing demands. When using the B4R, please keep in mind the following points:

•The Gain control should be adjusted until the peak LED flashes on strong signals. (This level will vary, depending on your instrument and playing style.)

ROCK:	GAIN	STYLE	BASS	ULTRA MID	TREBLE
MUTE
IN
TEXTURE		PEAK

JAZZ:	GAIN	STYLE	BASS	ULTRA MID	TREBLE
MUTE
OUT
TEXTURE		PEAK

•The Master control should be set to produce the appropriate output volume level.

•The Graphic EQ can be used to further fine-tune these basic suggested setting, to extend the frequency response of the cabinet being used, to com- pensate for room acoustics, or to act like a “second channel”

COUNTRY:	GAIN	STYLE	BASS	ULTRA MID	TREBLE
MUTE
OUTIN
TEXTURE		PEAK

BRIGHT:	GAIN	STYLE	BASS	ULTRA MID	TREBLE
	MUTE
	OUTIN
	TEXTURE	PEAK

FUNK “POPPING:”

GAIN	STYLE	BASS	ULTRA MID	TREBLE
MUTE
OUTIN
TEXTURE	PEAK

Rack Mounting

When mounting the amplifier into a rack, the four bottom feet should be removed to maintain the three rack space height of the ampli- fier. Be sure to keep the feet and their attachment bolts for future use. If the feet are reinstalled, never use screws which will protrude farther into the amplifier than the original hardware.

The rack must be a high quality enclosure capable of securely supporting the weight of the amplifier. Tighten the mounting screws securely through the amplifier’s face plate, into the rack rails. Check the rack and mounting screws occasionally to ensure a continual- ly safe and secure installation.

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