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I've never really done a careful comparison to see if my TT sounds different with the dustcover up, down of off? Have any of you? THANKS.
-Bob
Follow Ups:
I use my table regularly, and always give it a quick dust before use. No dust ever accumulates.and past experience is that dustcovers cause acoustic problems
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nt
Off is the best, especially with music with a fair amount of bass content. By making
CD-R's, you can go back and forth as much as you want very easily. I even have friends choose the trcks and do it blindly. Cover off always won. Since I use a dust bug to remove dust and static, i don't care that I don't have a cover while playing. Besides, dust falling on a record while playing generally doesn'taffect the sound- the stylus lushes it away effortlessly.CD-R's are also excellent ways to evaluate TT mats, TT supports, tube rolling, interconnects, etc., because when they are well done, they are virtually identical to the sound of the original vinyl.
On my VPI HW-19jr, I removed the dustcover, the hinge holders and screws, the cork resting pads, the motor cover, and the motor cover supports and screws.Only after all this did I listen so I couldn't say exactly what the contribution of just a removed dustcover might be. However, after all this modding, I got a very worthwhile improvement in transparency so I'd say give it a try.
As far as dust goes; with an antistatic gun and record brush I don't seem to have any additional buildup when playing or even when not since I throw a soft cloth over the VPI when not in use. Hummm, actually now that I think about it, my covering cloth is holding a fairly large static charge, perhaps all the dust is being attracted to it instead of the table/record.
for a while I had a Bodhran (Irish drum) hanging on the wall above the table ... between two Paradigm studio v2's."Sound was a bit muddy"
took the damn drum down. Guess what? correctamundo!!!
I take the lid off as well because:
1. I am anal [meaning an ass, i guess]
2. "They" say it makes a difference and "They" are usually right
3. I thought I could tell that it made a difference
Of course, if it is off, you have to worry about that continuous shower of dust raining down on a newly cleaned record :^)
...In the "down" position.Off is best, but down is pretty close to off in sound with my room and system.
--
Al G
Born to Tinker!
the theory goes:The dust cover/lid acts like a microphone that responds to sound waves in the environment. It feeds unwanted vibration to the plinth where you really don't want it. Vibration isolation is one of the key ingredients for extracting as much fine detail from the disc. Even if your TT has excellent isolation there is no reason to give it more vibration to deal with.
Although I suffer from TLTTIO disease, (Too lazy to take it off), when I'm taking notes for a review it is always off. However, I've always been a bit worried (paranoid?) that the large piece of plastic left near my system (thus near the speakers) would vibrate or reflect sound as a window does.I've gone so far as to put it in another room, but suffering from terminal laziness, I rarely if ever do it; especially now that the room I listen in is quite a bit larger than the living room at my last house...and the next room is where the "klutz from hell" may be while I am listening. I should give David more credit than that to know the cover shouldn't be touched, but this is the boy who broke not one, but two speaker covers while they were off!
So, the paranoid question is: Does that large piece of plastic affect sound even when off the 'table? Being one that believes EVERYTHING makes a difference, I'd think so...but there's little chance of hearing that miniscule difference, thus I feel justified to rejoice within my laziness!
Sound from the speakers will make it resonate.
Off for all listening, except headphone.
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