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Building a Subwoofer

Im looking to build pair of subwoofers.
Im thinking of using an upper quality Infinity car sub, building my own box, throwing in a crossover, and im looking for reccommendations for a high power amplifier.

Im looking for a stereo amplifier, 300WPC minimum, or a couple 300w+ monoblocks.

Seeing as how this is a DYI, im also looking to keep the cost down as much as possible. under 1000 for the amplifier, preferable far below 1000

any suggestions on crossovers?
slappy

Showing 2 responses by sean

sean
6,231 posts
 
Before you even think about spending your first penny, buy and read a book called Loudspeaker Design Cookbook by Vance Dickason. While it is not hard to build a subwoofer that shakes, rattles and rolls, it is tough to build one that is accurate, articulate and built as well as it should be. You might find that the driver(s) that you want to use are not suitable for the size and type of box that you want to use. If such is the case, think about how much time, money and frustration reading this one book might save you. Sean
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sean
6,231 posts
 
Trelja: I've owned 2600's before and don't think it's too bad of an amp either. They do work quite well with Klipsch speakers from my experience. While it might work out reasonably for a sub amp, i don't know where you are going to find one for anywhere near $200. The lowest i've ever seen one go for was $275. They typically go for between $300 - $350 from what i've seen. I didn't have any problem selling the ones that i had at $325.

As a side note, ANY amp that is driving a sub(s) can be improved by increasing the power supply reserve i.e. adding filter capacitance. This can really tighten and stiffen the bass, especially on amps that are noticeably "loose & sloppy" to begin with. Sean
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