A passive radiator looks like a driver because it has a diaphragm, but unlike a “real” driver, it doesn’t have a voice coil or driving mechanism. This also means that it doesn’t have connection ...
MartinLogan revamps the Grotto line with new 12" and 15" subwoofers, each powered by 1kW amps and dual passive radiators for deeper, more powerful bass than ever before.
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