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In Reply to: RE: Demo of a defective product? posted by avsBuddy on May 18, 2011 at 12:55:45
I listen to all units for a couple hours before shipping them out. I have done a lot of experiments with different glues and they sound different. For GroundHanger, glue always reduces microdetail so it needs to be removed.
For CableRing when glue is too close to the processors it reduces microdetail. When using more cloth (so glue is further away) the blackness is reduced and it sounds grey and dry. I need to cut as much of the cloth as possible and close it with tiny amounts of super glue. But if I cut too much cloth it sounds too black. I make all the cutting with my ears, I listen to the CableRing, cut a little more, listen again etc. Just putting the cloth on takes many hours.
CD, you are on to something! Couple of carbon fiber buttons, Rhodium plated, will sure elevate high frequency response to the whole new level!
So I was right about the adverse effects of glue on the sound. Can you please comment on our debate about the frequency of the roll off caused by glue spot. Palustris calculated that to be at about 22.736Hz while my calculations put it at 20Hz even.
Of course his calculations could've been thrown off by your cloth cutting method.
The glue makes it sound edgier with less resolution and microdetail, sort of like the music is downsampled, it happens in the entire frequency range. I haven't heard any roll offs from it.
It was a nightmare designing my products because placing anything around the unit reduced sound quality. Paint and lacquer gave the biggest reductions in resolution. I even tried natural rubber which I pasted on in many layers, it made it more veiled the more layers I applied. Then a miracle happened and I found a neutral material that didn't reduce the performance in any way, it actually improved it.
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