Dahlquist 15-inch Subwoofer Specifications: Dahlquist PDQ-1500 500 Watt Peak Power in a 15 Inch Digital Powered Subwoofer Commentary: Audiosphere has been designing, engineering, building and assembling speakers in Canada for over 25 years. They are Canada’s oldest manufacturer of loudspeakers. They also own Dahlquist, Design Acoustics, Acoustics, Acoustic Profiles, Abstract Acoustics, and are a major OEM supplier to the Canadian and U.S. markets. Audiosphere remains one of only a few speaker companies which both creates and manufactures its own speakers. The PDQ-1500 Subwoofer is able to provide well controlled deep bass with little coloration or harmonic distortion. The PDQ-1500 will play quite loud, and is a nice alternative to all those similarly priced quasi-subs that don't even make it to 28 Hz. How will this hook into my system? It's easy...High or Low level, (speaker wires or RCA cables) Dahlquist made sure that the 1500 will work with any system. Specifications: Woofer: 15" Down Firing, 2" Voice Coil, 54 oz Magnet, Crowned Back Plate Response: Variable from 28 Hz - 150 Hz Amplifier Power: Class D (Digital) 175 Watts Peak Amplifier Power: 500 Watts Amplifier Controls: Variable Volume, Phase, Frequency Amplifier Features: Auto On/Off, High Level IN/OUT, Line Level IN Cabinet: 1" MDF, Bass Reflex Design, Internal STS Bracing Port: 4" High Flow External Dimensions: 19" H x 17 1/2" W x 17 1/2" D Several site visitors have requested the PDQ-1500 manual: Manual Cover Setup Operating Instructions Safety I also have a Dahlquist subwoofer test CD, but you'll have to send me a couple dollars to cover the cost of shipping.     © Copyright James McQuaid 2004