Extron electronic XPA 2003C-70V, XPA 2002 manual XPA 2004 bridged mono output speaker wiring

XPA 2004 bridged mono output speaker wiring

In bridged mode, the output mode toggle switches for Input 1 (A) or Input 3 (B) or both must be set to the bridged (up) position, as shown below.

For Input 1: The channel 1 “+” output terminal becomes the bridged:”+” output terminal and the channel 2 “+” output terminal becomes the bridged “-” output terminal, as shown below.

For Input 3: The channel 3 “+” output terminal becomes the bridged:”+” output terminal and the channel 4 “+” output terminal becomes the bridged “-” output terminal, as shown below.

	Mono +						Mono +
				CLASS 2 WIRING
	BRIDGE			OUTPUTS
8 Ohm	MODE		BRIDGE A		BRIDGE B		8 Ohm
	A	B
Load			1	2	3	4	Load
	ON
	OFF		8 / 4	(BRIDGE 8 ONLY) 8	/ 4	(BRIDGE 8 ONLY)
	Mono –						Mono –

On the input end, only Input 1 or Input 3 or both are used in bridged mode, as shown below.

		INPUTS
1	2	3		4
(BRIDGE A)			(BRIDGE B)

XPA 2004 bridged mono output using parallel speaker wiring

In bridged mode, the output mode toggle switches for Input 1 (A) or Input 3 (B) or both must be set to the bridged (up) position, as shown below.

The channel 1 “+” output terminal becomes the bridged:”+” output terminal and the channel 2 “+” output terminal becomes the bridged “-” output terminal, as shown below. Similarly, the channel 3 “+” output terminal becomes the bridged:”+” output terminal and the channel 4 “+” output terminal becomes the bridged “-” output terminal, as shown below.

8Ohm

Total Load

16 ohms

Mono +					Mono +
			CLASS 2 WIRING
	BRIDGE		OUTPUTS
	MODE	BRIDGE A		BRIDGE B
16	A B	1	2	3	4
ohms	ON

16 ohms

168 Ohm

ohms Total Load

OFF	8 / 4 (BRIDGE 8 ONLY) 8 / 4 (BRIDGE 8 ONLY)
Mono –	Mono –

Two 16 ohm speakers wired in parallel equal an 8 ohm load.

XTRA Full Rack Power Amplifier Series • Operation 16