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and damage itself (and/or your speakers), and render the cables useless for any purpose.
BRIDGE MODE SPEAKON
®
JACK
The Speakon
®
jack located directly below the Power Amp Assign switch (in the center of the
Speaker Output Section) is provided for use in the Bridge Mode only. A six foot speaker cable
(Speakon-to- Speakon) is provided with the SM-900 for your convenience. Please make sure that
all connections are complete before turning the SM-900’s power switch to the “On” position.
GENERAL AMP & SPEAKER TIPS
Make sure your speakers can handle the power provided by the SM-900 in Bridge/Mono mode.
Speakers that have been overdriven are easy to detect and generally do not fall under a manufac-
turer’s warranty.
In order to give bassists the same punch and clarity found in the studio or in concert PA systems,
the SWR SM-900 was designed with a frequency response far greater (20Hz to 40kHz) than that
generally found in musical instrument amplifiers.
If you notice the fan is still engaged after playing through your SM-900, let it run for a couple of
minutes to cool itself off. This will help extend the life of the internal components.
Upon powering up the SM-900, you will notice an initial turn-on transient heard as a “thud” in your
speakers. This will not harm speakers made by SWR, however, if you’d rather not hear this tran-
sient, turn on the SM-900 first, and then attach your speakers. Just be sure you aren’t playing
when you connect the speakers, as it may cause a speaker fuse to blow.
POWER SWITCH
Setting the power switch to the right “On” position activates the electronics in your SM-900 as
indicated by the power LED lighting on the front panel.
AC LINE (MAINS) FUSE
This fuse is provided to protect the internal electronics against power surges, etc. It also protects
the unit against itself should one of the internal components fail. If this fuse should open, replace
it with the same type of fuse and rating. Do not defeat the purpose of this feature by replacing
this fuse with a fuse of a higher value. It will void your warranty.
Proper size of the AC fuse for all countries is 3AG. Proper rating of the fuse is as follows:
United States: 8 amp, slo-blo
Japan: 9 amp, slo-blo
Europe (240V): 4 amp, slo-blo
AC CORD RECEPTACLE
The AC Cord receptacle accepts a standard AC power cable (supplied with the SM-900). If your
AC cord is lost, a replacement can be purchased at almost any electronics, computer or pro audio
store.
Note: The rating for this cable is 3 conductor, 10 amperes MINIMUM. If replacement is neces-
sary, or if you wish to buy a longer cable, look for the rating on the cable and be sure it is at
least 10 amps.
Make sure the AC cord is plugged all the way into both the amplifier and the wall socket. If your
cord ever becomes frayed or split, replace it immediately.
SM-900 USER GUIDE • 15