The SA-WM500 is a powered subwoofer that packs a 12-inch driver respectively in a bass-reflex (vented) cabinet. An onboard amplifier delivers 150 watts of power to the driver. Supports both line-level and speaker-level inputs, as well as a line output for connection to additional subwoofers, for even more bass. The crossover is variable from 20-200Hz. This will help you match them to the bass characteristics of your main speakers.
Highly Oriented Polyolefine (HOP)
A better material for better sound. The dynamic range of Dolby Digital sound tracks places stringent demands on the speakers that reproduce it. That's why Sony developed an exclusive loudspeaker cone material: Highly Oriented Polyolefine (HOP). It's extraordinarily strong, yet amazingly lightweight (up to 30 times more rigid, per unit weight, than polypropylene). You get dynamic sound with low distortion and extraordinary transient response. HOP cone material combines high strength, low weight and low resonance, resulting in improved transient response, higher power handling, and flatter frequency response.
Matched Speakers
With the Dolby Digital system, the surround channels are reproduced in full stereo, with the same full frequency response and dynamic range as the front. That's why Sony builds receivers with just as much power to the surround channels as to the front. And that's why their speaker systems offer the same quality front and rear.
Magnetic Shielding
Speakers placed too close to the TV can cause the pictures to bend and colors to bleed. That's why Sony bookshelf, floor-standing, front and center speakers all incorporate magnetic shielding. It cancels out magnetic fields and resulting interference. You can place the speakers anywhere - even directly beside your TV - without picture distortions and degradations.
Advanced Super Active Woofer Design
It might be hidden from view, but an important element of today's best home theater systems is the subwoofer. It's a specialized speaker that handles only the deep bass. And it helps put the finishing touch on everything from explosions and car crashes to film scores and symphonies. At these low frequencies, bass appears to come from everywhere. This "omni-directional" characteristic lets you position a subwoofer anywhere in the listening room - and still get proper surround sound imaging. Sony subwoofers are "active", meaning they have built-in amplifiers for prodigious power. They also use Sony's proprietary SAW (Super Active Woofer) enclosure design, enabling them to provide deep, powerful bass from compact, space-efficient cabinets.