SWR Sound manual SM-900Stereo Mode Operation Diagram, SM-900Power Output Ratings

18 • SM-900 USER GUIDE

SM-900 Stereo Mode Operation Diagram

	Note: When the power amp assign switch is set to the “Stereo” position, only the right and left Speakon
Power Amp Assign Switch
	output jacks or left and right 1/4” output jacks may be used. Do not use the center Speakon jack as it is
set to “Stereo” position.
	provided for Bridge/Mono operation only.

						1		2
OFF				ON
	A/C LINE FUSE
						LEFT SPEAKER
					L SPKR
SLO BLO		FUSE	8 AMP		FUSE		FUSE
					10 AMP

120VOLTS 50/60 HZ

960 WATTS

SPEAKER OUTPUTS

350W X2 STEREO

BRIDGE MONO

800W

12

RIGHT SPEAKER

R SPKR

FUSE FUSE 10 AMP

EFFECTS	X OVER	XLR PAD
LEFT	OUT
	SEND
		PULL GND LIFT
		MIN	MAX
		BALANCED
	HI	OUT
STEREO
RIGHT	MONO
RETURNS	LOW	TO
		TUNER
		INPUT
		DIRECT	LINE

This example shows two 8 ohm speaker enclosures, each connected to one side of the stereo power amp for a total load of 8 ohms per side. Although the minimum impedance that the SM-900 is designed to drive safely in the Stereo Mode is 2 ohms (per side), 4 ohms per side or greater is recommended. Connecting multiple enclosures that have a combined total impedance of less than 2 ohms per side may result in damage to your amplifier.

The following cabinet configurations can be used:

Speaker 1 = 8 Ohms Speaker 2 = 8 Ohms

SM-900 Power Output Ratings

Stereo Mode (per side) 400 watts @ 4 Ohms 240 watts @ 8 Ohms

144 watts @ 16 Ohms (minimum load = 2 Ohms)

•one 2 ohm enclosure (per side)

•one 4 ohm enclosure (per side)

•one 8 ohm enclosure (per side)

•two 4 ohm enclosures (per side)

•two 8 ohm enclosures (per side)