13
Strapping the Ouputs of the ST-X Mono III
• Connect the master amplifier’s speaker terminal to the + (positive)
terminal of the woofer
• Connect the slave amplifier’s speaker terminal to the - (negative) terminal
of the woofer
• Connect the two amplifier’s speaker output - (negative) terminals together
You are creating a much more powerful amplifier in this way and doubling the output.
Make sure your speaker wire can transfer the power, we recommend a minimum of 12
gauge speaker lead, and for best performances you should use 10 or 8 gauge.
Master amplifier
Slave amplifier
12
Strapping the ST-X Mono III
The ST-X Mono III amplifiers are true mono units and you can double their power by
“strapping” two units of the same model together to drive a single voice coil. Always keep
in mind that each amp must see a minimum load of 2 Ohm (1V per amp).
• Decide which amplifier will be the “master” and which will be the “slave” amplifier
• Connect the head unit bass output or full range output RCA to the R and L RCA
inputs of the first (master) amplifier
• Connect the “Bridge Out” of the master amp amplifier to the “Bridge In” of the slave
amplifier with a single RCA cable. Do not connect anything to the regular R and L
Inputs of the slave amplifier
• Connect the Bass Remote to the Remote In of the master amplifier
The master amplifier is now the control amplifier. All the adjustments you make to the
bass remote and to the master amplifier’s other controls will be transferred to the slave
amplifier, and the slave amplifier will be driving the negative side of the signal and have
no control functions of its own.
