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Owner's Manual

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Speaker Wiring of the ST-B Amplifiers
The Very Basics
No speaker wires can be shorted to, or touching either ground or each other. This will
put the amp into protect and may damage the amplifier. When bridging the left and
right channels of any ST-B amplifier, you use the left channel (Ch1) positive and the right
channel (Ch2) negative, as indicated on the chassis by the speaker terminals.
2-Ch. Amplifer - Stereo Mode
A simple 2 channels hookup for a right and left stereo pair.
2-Ch. Amplifier - Single Channel Mode
This method is used most often to drive a mono woofer but can also be used to run
separate amplifiers for the right and left channel. The ST-B amplifiers are stable to 2Ω
stereo and 4Ω Mono so the single bridged speaker must be of 4Ω minimum impedance.
X-OVER
WF WF
TW TW
X-OVER
2 OHM MIN/CH