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If I were building one of these DIY

Posted by DavidLD (A) on February 4, 2011 at 06:30:13

In Reply to: RE: Link for all the information posted by The Virginian on February 3, 2011 at 15:29:51:

I would take a look at the full range 8 inch drivers from Goldwood or maybe Pioneer. The Goldwood 8-inch full range driver PE part number 290-379 would be an interesting option for a Gough design (under $20) and being inexpensive, consistent with the original Gough approach of doing something that sounds way better than it costs to make.

The enclosure is not going to improve the high frequencies. I would be tempted to simply add on one corner of the woofer, a little Goldwood tweeter such as PE part number 270-175. ($2-$3 ea) The crossover would simply be a high value cap in series. How high a value might be an empirical experiment. A really fancy addition would be an L-Pad wired as a tweeter level control (another $3 or so).


The enclosure itself might be characterized as something of a folded horn. The original Popular Science article (they tried their best to look at the whole idea objectively) claimed that to their ears the enclosure produces considerably more extended bass than you would expect to get with the same driver in a conventional bass reflex enclosure. My experiments at age 16 using a smaller 4-inch full range driver in a scaled down version basically confirmed this.

The versions I've read about and built way back then were all made of plywood. Gough claimed that completely sealed joints were not essential for the enclosure to work. In the pop science article they said a quarter-inch gap in a joint made no difference in the sound whatsoever.

I do not see any reason why the cabinet could not be constructed out of modern 3/4 inch MDF, however, using screws and glue, sealing all the joints well.

Another option would be to try building a pair of these using one of the also readily available 4-inch full range speakers...maybe a Tang Band.

I wish I had space for more DIY speakers, but I already have too many pair.

A pair of these made with the Goldwood full-range 8-incher would attact a lot of attention at any DIY event for sure! I wonder how they would fare. Parts cost less the cabinets would run under $30

• Goldwood 8 incher   (Open in New Window)

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