Boss Audio Systems cx450, CX250, CX2000M Tri-Mode, Component values for 6dB Passive Crossover

Power and Speaker Wiring	2-Channel Amplifiers
Tri-Mode	CX250, CX450, CX550,
	CX750, CX950, and CX1250

Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels. The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO.

To set up the amplifier to run in this mode, put the crossover switches in the FULL position. Insert high pass filter capacitors and a low pass filter inductor into the wiring as shown below. Be sure to check the table at the bottom of this page to determine the correct capacitor and inductor values for the crossover frequency you wish to achieve.

Component values for 6dB Passive Crossover

FREQUENCY INDUCTOR CAPACITOR

80 Hz	7.5mH	470uF
100 Hz	6.5mH	330uF
120 Hz	5.5mH	330uF
150 Hz	4mH	220uF

Tri-Mode

	SPEAKER CONNECTIONS		POWER CONNECTIONS
	L	R	BATT+	REMOTE GROUND
		FUSE
	BRIDGED
					Chassis
					ground
					point
	High pass filter				to REMOTE TURN-ON
	crossover
					terminal of head unit
	LEFT
MINIMUM	Speaker			FUSE	Battery
SPEAKER	High pass filter
IMPEDANCE	crossover
4 OHMS
	RIGHT
	Speaker
	Low pass	SPEAKER
		IMPEDANCE
	filter inductor	8 OHMS
	Subwoofer

CHAOS EXXTREME MOSFET Amplifier User’s Manual - page 13