I purchased a boatload of Elemental Designs EHQS8 8" woofers a few months back for $5 each and am actually very impressed with them for what I paid. An honest 6mm xmax and some very impressive distortion measurements above 40 hz (mostly below 0.05%) that I took with Arta. I had an idea to build a pair of very inexpensive dipoles that could be crossed to a subwoofer and here's what I'm thinking. Four EHQS8s in the front and back of an enclosure wired out of phase. The front baffle will extend an additional 10"+ to allow for a dipole MT or MTM. Using a box instead of a typical U or H frame I'm hoping to gain the ability to cross over higher and avoid the peaks the other two formats are prone to. If I can get a healthy cross around 300-400 hz I could use smaller mids and alleviate some crossover component costs. Another nice thing I'm hoping this will give me is deeper bass, as I can build the enclosure quite large, increasing my effective path between sets of woofers. I'm thinking somewhere along the lines of 11-12" wide and up to 20" deep.
With that, can you see any flaws with doing this? Will I need to include some type of sound absorption for the internal waves?
Thanks.
It will look something like this, only larger:
With that, can you see any flaws with doing this? Will I need to include some type of sound absorption for the internal waves?
Thanks.
It will look something like this, only larger:
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