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Compare strapping (bridging) two amplifiers versus gain matching them. Understand the power output and impedance implications of each configuration.
Strapping requires identical amplifiers
The combined impedance of your subwoofer(s) wired together
How it works: Both amps combine to act as one. The load impedance is split between them (each sees 0.50Ω). One amp handles positive signal, the other handles negative.
How it works: Both amps operate independently, each seeing the full 1Ω load. Gains are set to match output levels. Each amp powers its own set of voice coils or subs.
Strapped
8000W
+4000W
(+100.0%)
Gain Matched
4000W
SPL competitors typically strap because raw power wins burps. Daily drivers often prefer gain matching for flexibility and redundancy if something fails. Either way, confirm your amps can handle the resulting load before hooking anything up.