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)

Page 20
Image 20
SWR Sound manual SM-900 Stereo Mode Operation Diagram