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In Reply to: RE: Thoughts on the 1.7, upgrade amp or XO parts? posted by Branko on January 07, 2021 at 13:48:29
Skypop has the right idea. I added 2 lbs of naked iron weights on each of the 4 legs (sold at Walmart $2 each) and the shape fits perfectly on the legs. Difference is stunning-speakers sounds more relaxed and bass firmer.
The frame / stand / materials isssue was beat to near-death a few years ago.
While sheer mass CAN help, essentially, the frame as made by Magnepan is a soft material with poor torsional rigidity.
That's where Peter Gunn came in and HE got blasted, though in all fairness, he was pretty adament at times.
I thought thru all this and decided that a natural composite (Wood) is better than a material with a resonance mode you may not be able to control. I see many example of light structures which have excellent mechanical properties. Birds, for example. And tall trees which when stripped of bark show a SPIRAL growth pattern. This distributes the stress and makes for a stronger tree. While this article seems to imply this as a new idea, I knew this on sight maybe 40 years ago when I went with a GF on a field trip to Mammoth Mountain. The teacher asked what we thought and I answered but was semi-ignored.
Others at that time chimed in with various pole-piece damping ideas and alternative frame materials. One person even suggested Corian which makes a wonderful counter top.
The ingenuity shows remarkable thought processes and willingness to try nearly anything. So Go Right Ahead!
Someone recently suggested GR Research for crossover mods for Maggies. They make 'em for the 1.6 or the 1.7, 2 of the more popular models.
Too much is never enough
One added thought: Why not use poly-carbonate rods for frame- Miraculous stuff-If Boeing had used it their 837's they would not have gone down but they cut corners ;it was in the original plan..,Less expensive is switching to aluminum which some very expensive speakers use. Magnepan does not use aluminum because it as they say 'not cost efficient.
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