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SV Subwoofers 20-39cs Passive Subwoofer.(Evaluation)
Manufacturer: SV Subwoofers LLC, 590 Carlin Drive, Austintown, OH 44515; www.svsubwoofers.com
Price: $479
Source: Manufacturer loan
Reviewer: Thomas A. Nousaine
What the heck is a "passive" subwoofer? Unlike other speakers, most modern subwoofers are powered, which simply means that a power amplifier and electronic crossover come as part of the package. A so-called "passive" subwoofer has all the acoustic stuff but you have to supply the electronics yourself.
Many modern receivers will have a modest electronic crossover. Fancier units such as my Lexicon DC-1 and MC-1 already contain an extensive subwoofer filter, but in either case you still have to supply the power separately. Many of us may have a separate amplifier channel hidden away in the closet so this may not be that big a problem for a long-time enthusiast.
The primary SV Subwoofer (SVS) products are a series of different sized 12-inch bass reflex passive subwoofers. They have now introduced a line of similar products, their "Powered Cylinder" subs, which include an internal 190-watt amplifier with an integrated crossover. None of the passive "Cylinder Series" subwoofers include any crossover, so either you must have one built into your current system or you'll need to purchase one separately. The Paradigm X-30 is an excellent moderately priced ($160) device to consider.
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