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In the Forum: Playback Listening
In the Thread: Tightening to loosening Screws ? no fake...
Post Subject: Screws on speakersPosted by drdna on: 10/18/2009
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I have had the same experience. I have experimented extensively with tightening and loosening the screws that mount the speakers to the baffle. I have done this with the plain wood and also by placing a gasket in between and tightening it down, similar to the idea of shock-mounting. I have used various types of rubber, varnished, oiled, waxed, and laquered paper, Sorbothane, etc. I believe there are a few issues. First, transmission of the rear wave can lead to partial cancellation. Coupling of the speaker to the enclosure leads to alterations in resonance. The speaker is stabilized in three dimensions in terms of movement, which especially affects the tweeter. Also, the speaker cones can be aligned with slight changes in the direction in which they are pointing, so that it acts as a form of micro-alignment.I started playing around with all this in the 80's. I encourage everyone to explore it. For certain speakers in certain applications it can be critical. My experience is that for a tweeter in a MTM D'Appolito configuration, it is very important.AdrianRerurn to Romy the Cat's Site