The H-PAS PowerBar 235 is a 43" long powered sound bar that delivers multi-channel high-fidelity sound for your home entertainment system. It features Atlantic's H-PAS bass system, which produces deep, distortion-free bass without the need for a subwoofer! Using just two 4" woofers, the H-PAS PowerBar 235 reaches down to a solid 47Hz at very high theater-like SPL's, for an absolutely convincing and totally satisfying sonic experience. Because of its extended frequency response and dynamics, the H-PAS PoweBar 235 is the first sound bar where the subwoofer is truly optional. It is a perfect standalone solution! Features: User Switchable Display USD: Can be "flipped" to read correctly whether unit is "right side up" or "upside down" Multi-Channel DSP using Dolby Digital and DTS: Creates a 2, 3 or 5 channel virtual sonic landscape for immersive sound Auto Detect Dolby and DTS for best sound enhanced mode Lockable front panel buttons for secure settings Front and Rear IR sensors Includes a simple remote; but can also be used with most universal remotes Rear panel Sub out jack for optional subs (IF you're an incorrigible bass hound) Packaging: Carton Unit Of Measure Id: 1 * Width: 42.75 (inches)* Depth: 6.5 (inches)* Height: 6.5 (inches)* Weight: 20.3 (pounds)Color: Black Wattage: 100 Frequency Response: 47Hz-20kHz +/-3dB Woofer: 4" Tweeter Size: .75"