Crate Amplifiers BFX-220H manual The Rear Panel, Cab Imp, # Cabs, Total Imp, ohms

BFX-220H Bass Amplifier with Digital Signal Processing

The Rear Panel:

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS: RISQUE DE CHOC

ELECTRIQUE. NE PAS OUVRIR.

WARNING: TO REDUCE THE

RISK OF ELECTRIC SHOCK, DO

NOT EXPOSE THIS EQUIPMENT TO

RAIN OR MOISTURE.

MODEL: BFX220H

SERIAL: XXXX0000000000

LINE: 120 V ~ 60 Hz

WATTS: 550 MAX

MADE IN THE U.S.A.

BY SLM ELECTRONICS 1400 FERGUSON AVE. ST. LOUIS, MO 63133

19

	20	21
PREAMP
	OUT
		EFFECTS
		LOOP
PWR AMP		RETURN
	IN
		25
		SEND
		24
S
P
E
A 150W @ 8 OHMS		23
K	220W @ 4 OHMS
	MIN. LOAD
E

R

S

BALANCED

LINE OUT

22

19.AC LINE CORD: This grounded power cord is to be plugged into a grounded power outlet, wired to current electric codes and compatible with voltage, power, and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection.

20.PREAMP OUT: Use this 1/4” jack to send a preamplified, line level signal to an external amplifier, powered monitor, recording console, mixing board or effects processor. The signal at this jack is unbal- anced: tip = signal +, sleeve = signal –.

21.POWER AMP IN: Use this jack to send a line level signal into the BFX-220H’s internal power amplifier. When a connec- tion is made into this jack, the signal from the input jack is interrupted.

22.SPEAKERS: Use these jacks to con- nect the amplifier to your speaker cabi- net(s) using heavy duty speaker cables. These jacks are wired in parallel. Avoid speaker combinations which result in impedance loads below 4 ohms. The fol- lowing chart shows acceptable parallel load combinations:

CAB IMP.	# CABS	TOTAL IMP.
8 ohms	2	4 ohms
16 ohms	2	8 ohms
16 ohms	4	4 ohms

23.BALANCED LINE OUT: Use this XLR jack to send a preamplified, line level sig- nal to an external amplifier, powered mon- itor, recording console, mixing board or

effects processor. The signal at this jack is balanced, and its level is controlled by the Line Out Level control (#10, front panel). The signal may be post or pre-EQ, depending on the Post-EQ/Pre-EQ switch (#11, front panel).

24.EFFECTS LOOP SEND: Use this 1/4” jack to send an unbalanced line level sig- nal to the input jack of an external efects processor.

25.EFFECTS LOOP RETURN: Use this 1/4” jack to connect the signal from the output jack of an external effects device into the amplifier.

5