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RE: Peter Gunn and the World of Tomorrow

I reframed an MG-2A back in the 90's in red oak, securing the radiating panel to the frame with silicone caulk and screws and stiffened the frame's connection to the flat base with short angle braces (nothing at all like the struts that Peter or Grant employ in their respective products and consequently not as rigid or, in Peter's case, anywhere near as efficient in energy transfer). I kept the frame's dimensions the same as the stock unit, as I didn't want to mess around with any possible diffraction or other presentation-alteration issues that might result from making it larger.

The result I heard on familiar program material was not deeper bass per se but a tad more output and solidity in the marginally low-to-midbass region, giving the overall presentation the illusion of "more" bass output, which still nosedived below around 40 Hz (and may reflect, at least in part, interaction with my listening room). I didn't take measurements, so I had no way of quantifying the results. It seemed clear, however, that a more secure panel-to-frame connection and a difference in energy dispersal within the frame improved perceived bass quality down to the MG-2A's lower limits as I'd experienced them in this room.

I'd be interested in what your measurements indicated with your MMG's, particularly in terms of pre-to-post-mod bass output differences. If that works for you, we can do it via e-mail if that's what you prefer.

Thanks.

Jim
http://www.geocities.com/jimtranr/index.html



Edits: 03/24/08
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