High Power at Low Impedance

Boston Acoustics builds versatility and power into their GT Reference Series amps, so they'll deliver clean, dynamic performance in any kind of system. A high-current design combines with highly efficient output transistors to allow these amps to drive low-impedance loads safely, so you can get more out of your system.

Drive speaker set or sub

The GT-475 puts out 75 watts RMS per channel to four speakers, and Q-Tune™ technology lets you adjust the sound of your full-range speakers to blend in better with your subwoofer. In bridged mode, you can send up to 250 watts RMS each to a pair of subwoofers — more than enough juice to give your music tremendous impact. You can also bridge the rear channels to power one sub, then use the front channels to drive a pair of full-range speakers.

Advanced electronics

Boston Acoustics uses high-quality components that allow this amp to respond with lightning speed — you'll really notice the difference with percussive sounds like drums and piano. A computer-controlled diagnostic system monitors and protects against overheating, excessive voltage, and short circuits, so you'll get years of dependable musical enjoyment out of this amp.