Home Speaker Asylum

General speaker questions for audio and home theater.

Sealed enclosures for subwoofer

Does anyone make a subwoofer using a sealed enclosure? If they do, and you can't build one yourself, buy one.

I just finished building my own sealed sub, using the Madisound 1259 driver in a six cubic foot enclosure, and it is waaaay cool. The bass is so very tight and articulated, with clean, powerful transients and no hangover or boom whatsoever. Very smooth response, down to around 25 Hz, with some weak response even below that. It integrates very well with my B&W 802's to give me a solid bottom octave that was missing before.

This unit replaces a higher end, expensive model of a very well known brand of premium quality ported sub, and the homebrew is considerably better in every respect: musicality, transient response, overall smoothness of response, and integration.

Design and construction of a sealed enclosure is simple, requiring no complex calculations or tuning. I'm sure more audiophiles would opt for a sealed enclosure if they ever heard a really good one and could accommodate the space required. I think most manufacturers offer ported designs because they are cheaper to make and sell, and can be used more conveniently, but it is a compromise design which suffers from uneven response.

If you're capable of building a sealed box, it's not much more difficult to turn it into a great sounding subwoofer for a fraction of what you'd pay for an equivalent commercially available item.

I can send pictures and details to anyone interested enough to email me.

Peace,
Tom E


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Topic - Sealed enclosures for subwoofer - madisonears 20:37:19 04/12/07 (28)


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