Logitech Z-5500 This listing is marked as sold.

The Logitech Z-5500 includes a 10-inch long-throw subwoofer driver with flared bass port delivers 188 watts(continuous) of thunderous bass and 5 Polished aluminum phase-plug satellites that combine two drivers into one–the clarity of a tweeter with the richness and fullness of a separate mid-range. Power to the Satellites: 317 watts RMS (2 x 62 W front, 2 x 62 rear, 69 W center).

Frequency response is listed as 33 Hz — 20 kHz(they don't list to what +/- range, but I've measured the 33Hz at about -6dB, and 36Hz at -3dB).

The Brains and Heart-n-soul of the system is the Digital Soundtouch Control Center, which has built-in decoders for Dolby Digital and DTS processing.

Digital LCD: Clear, crisp high contrast display

Input: Select audio source (optical, coax, or direct)

Effect: Select digital surround sound effect(6ch Direct, Stereo, Stereo x 2, DPII Movie, DPII Music)

Settings: Adjust parameters of digital surround sound effects

Mute: Mute the entire system

Level: Adjust volume, subwoofer, center, and fader levels

Pro-audio style knob: Oversized, weighted control knob with digital precision

Auxiliary input jack: For convenient connection to portable audio devices (CD, MP3, MiniDisc®, etc.)