Crate Amplifiers BX-440H / BX-4115 ThunderBass Amplifier, Example, cabinet for the low end a

BX-440H /BX-4115ThunderBass Amplifier

Using the Biamp Capabilities – BX-440H:

About Biamping: The Biamp High and Low outputs of the BX-440H and the BX-4115 allow for a number of ways

to “biamp” your system: that is, using two amplifier/speaker combinations to share the task of reproducing the full range of your bass. Biamping increases each amplifier’s efficiency by allowing it to “focus” on a certain frequency range, rather than operating full range. The results of biamping include cleaner sound and more output power than that of a single-amped system, which is especially useful during high volume live performances.

There are a number of different ways to use the BX-440H and the BX-4115 in biamp configurations. The examples on the following pages show several biamp possiblities – you may find others. Your Crate dealer can assist you in assembling the custom biamp ThunderBass rig to best suit your playing style and venue.

The Biamp Controls: The front panel Crossover Frequency			C R O S S O V E R
control (#15) sets the point where the low frequency signal rolls
off and the high frequency signal begins. This control is variable			FREQUENCY		BALANCE
from 100Hz to 1kHz. Adjust this control to best suit the fre-
				300 Hz
quency range of your low frequency speaker cabinet. The
Crossover Balance control (#16) proportions the signal between			15				16
the high and the low output jacks (#26 and 27, rear panel).
Adjust this control for the most appealling blend of lows and			100 Hz	1kHz	LO	HI
highs.
Example 1:			BX-220H		OUT		BX-220H
					PREAMP
			1				EFFECTS
With the BX-440H and a BXE-18							LOOP
					IN		RETURN
		from			PWR AMP
cabinet for the low end; a	BX-		BX-440H
		bass				1
220H and a BXE-410H cabinet for			3				SEND
the high end:					S
			BXE-410H
Plug your bass into the BX-440H, then:					P
					220W @ 4 OHMS
					E
(1) Run a shielded cable from	the				A 150W @ 8 OHMS
					R
					K MIN. LOAD
					E
biamp high out jack of the BX-440H to					S		BALANCED
		input	2				LINE OUT
the power amp in jack of the BX-220H.
(2) Run a speaker cable from	the						BX-440H
speaker out jack of the BX-220H to the
input jack of the BXE-410H.
(3) Run a shielded cable from the						3
biamp low out jack of the BX-440H to			BXE-18
its power amp in jack.
(4) Run a speaker cable from the
speaker out jack of the BX-440H to the		direct	4
direct in jack of the BXE-18.		in
Adjust the Crossover Frequency and				2	4
Balance controls for the best sound.

TO	TO
BXE-410H	BXE-18

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