Yamaha Sw215. Yamaha YSTSW215 Classic Audio Yamaha's Advanced Active Servo Technology is a complementary amplifier/speaker system utilizing negative impedance feedback in the amp and a Helmholtz resonator in the speaker to provide strong and accurate bass. It was attached to a Sony STR-DE595 5.1 receiver with 4 polk R15's and a polk center speaker, and of course the Yamaha SW215
Yamaha YSTSW215 8" Powered Subwoofer Speaker System Bass Module Black from spencertified.com
The Yamaha YST-SW215 has an 8-inch driver that delivers clean and sharp bass for an amazing musical experience The YST-SW215 has a frequency range of 30 to 200 Hz
Yamaha YSTSW215 8" Powered Subwoofer Speaker System Bass Module Black
Yamaha 8" 150 watt Powered Subwoofer System Model YST-SW215 Excellent Condition! Yamaha 8" 150 watt Powered Subwoofer System Model YST-SW215 Excellent Condition! Yamaha's Advanced Active Servo Technology is a complementary amplifier/speaker system utilizing negative impedance feedback in the amp and a Helmholtz resonator in the speaker to provide strong and accurate bass.
YAMAHA SW215 8" Powered Subwoofer. A BASS (Bass Action Selector System) switch lets you choose between Music and Movie modes and you can also adjust the cutoff frequency of. The Yamaha YST-SW215 has a down firing driver that allows the sound to radiate every where for better all round impact.
Yamaha YSTSW215 Powered Subwoofer. It uses two highly acclaimed technologies, Advanced YST and QD-Bass, to deliver deep and powerful bass with an amazing degree of clarity The subwoofer is magnetically shielded so it can be placed near a TV monitor or receiver without fear that it will degrade the picture