21 Subwoofers for Home Theater and Music Listening, slide 12

Pro Audio Technology LFC-21sm

California-based Pro Audio says it designed its LFC-21sm as a “maximum output subwoofer.” Internally, the LFC-21sm features a 21-inch woofer that includes a 6-inch voice coil. Pro Audio Technology points out the sub mates with its PRO power amps, and through the company’s amplification powering the sub, the LFC-21smm is capable of producing bass down to 19Hz.

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21 Subwoofers for Home Theater and Music Listening