Dust Cover Up Or Down When Playing Records?

Discussion in 'Audio Hardware' started by wokeupnew, May 22, 2015.

Do you play records with a dust cover up or down (if you have one)?

  1. Up

    33 vote(s)
    39.3%
  2. Down

    45 vote(s)
    53.6%
  3. N/A

    6 vote(s)
    7.1%
  1. wokeupnew

    wokeupnew Well-Known Member

    Messages:
    7,497
    Likes:
    15,419
    Joined:
    Mar 11, 2015
    Location:
    VT
    I did some searching in this forum and all over and I don't know what works better for sound, etc. I've seen people say both ways, and that it doesn't matter. I've been keeping the dust cover up on mine because it's black transparent and I can't really see the record spinning otherwise.
     
  2. helllord

    helllord Well-Known Member

    Messages:
    2,999
    Likes:
    6,592
    Joined:
    Feb 19, 2015
    Location:
    chicagoish
    no clue if there's any arguments on what's better for the record or sound or anything, but i always keep mine down. my space is very dry and i have a super hairy dog, so i'd rather keep it down to avoid static and dog hair, etc landing on the record. never had an issue with sound re: the cover
     
    displayname and kvetcha like this.
  3. NoCo_Dave

    NoCo_Dave Well-Known Member

    Messages:
    1,125
    Likes:
    1,488
    Joined:
    May 12, 2015
    Location:
    Northern Colorado
    I usually leave the dust cover up. That's mostly so I don't accidentally jar the needle. But in my mind the benefits to lowering it should point to that being the best way. People who really shoot for playback quality just leave the dust covers off completely, but that's simply not practical.
     
  4. Brando

    Brando Well-Known Member

    Messages:
    980
    Likes:
    516
    Joined:
    Apr 23, 2015
    I leave mine down when I am not playing and up when its playing.
     
    HiFi Guy likes this.
  5. helllord

    helllord Well-Known Member

    Messages:
    2,999
    Likes:
    6,592
    Joined:
    Feb 19, 2015
    Location:
    chicagoish
    ALSO re: @NoCo_Dave 's comment about jarring the needle, my table is lower end and automatic, so i close my cover before i hit the play button which removes the possibility of that happening for me personally. i'd probably be more concerned about closing it if i had to manually drop the needle like most tables require
     
  6. Corycm

    Corycm Well-Known Member

    Messages:
    9,631
    Likes:
    39,061
    Joined:
    Mar 19, 2015
    Location:
    Des Moines, Flyover Country
    Up when playing, always. Down introduces unnecessary vibration. But stored closed because of...er, dust.
     
    HiFi Guy, SKOT_FREE, zomgbear and 2 others like this.
  7. NoCo_Dave

    NoCo_Dave Well-Known Member

    Messages:
    1,125
    Likes:
    1,488
    Joined:
    May 12, 2015
    Location:
    Northern Colorado
    There is a school of thought (and I can't honestly say it's valid or not, but doesn't strike me as bogus either) that the lid down reduces the effect of sound waves on the arm and needle.

    By the same logic having the lid up during playback would act like a transducer to the sound and transmit it into the 'table, which is why audiophiles don't use them.

    Like I say, I dunno, but that's reasoning I've heard behind what is done.
     
    Austin likes this.
  8. Taylor

    Taylor Well-Known Member

    Messages:
    2,318
    Likes:
    4,992
    Joined:
    Nov 7, 2014
    Location:
    Chicago Suburbs
    I keep mine down when I play, because sometimes it doesn't stay up, and it only takes a few times to have the lid come crashing down while you're playing a record to realize it is the only way.
     
  9. Peyton

    Peyton Well-Known Member

    Messages:
    1,548
    Likes:
    2,284
    Joined:
    Mar 13, 2015
    Location:
    Honolulu, Hawai'i
    Up, only because I randomly like staring at the record spinning from across the room. My other half and I have argued over leaving the dust cover up and down before, he likes to have it down because of dust.
     
  10. Brando

    Brando Well-Known Member

    Messages:
    980
    Likes:
    516
    Joined:
    Apr 23, 2015
    I would think that bass would cause the lid to vibrate and introduce that. I'm not sure the lid would be an effective barrier against sound waves coming back into the system. But all that is just speculation, I honestly don't know.
     
  11. Corycm

    Corycm Well-Known Member

    Messages:
    9,631
    Likes:
    39,061
    Joined:
    Mar 19, 2015
    Location:
    Des Moines, Flyover Country
    The thought at play - and your mileage may vary, I'm just talking the physics of things here - is that when the cover down comes in contact with the plinth. That acrylic cover is going to amplify any vibration coming though or across the plinth and send it straight back down on the record (a la the old string-and-a-cup telephone). It's also enclosing the environment, so sound from the motor, arm mechanics, what have you are bouncing off that acrylic lid and right back down to the record as well.

    Now, how much you notice it is going to have about eleventy grillion factors that influencing that. Everything from the material the plinth is made out of, what sort of mechanics you have, dampening materials being used throughout, and your output (for example my headphones are way less forgiving - they pick up stuff on playback that my speakers don't). I don't think there's an incorrect answer, because we could all be seeing different things in play. Try it both ways and see what works best for you. Playing with it closed certainly isn't going to hurt anything.

    As an aside, I once had my headphones on (and probably too loud) and my lid slammed shut unexpectedly.
    Thaaaaaat'll wake you up.
     
    Melt Face Molly Drop and Taylor like this.
  12. Taylor

    Taylor Well-Known Member

    Messages:
    2,318
    Likes:
    4,992
    Joined:
    Nov 7, 2014
    Location:
    Chicago Suburbs
    It certainly makes you cringe
     
  13. NoCo_Dave

    NoCo_Dave Well-Known Member

    Messages:
    1,125
    Likes:
    1,488
    Joined:
    May 12, 2015
    Location:
    Northern Colorado
    My suspicion is that by putting the lid down you are using the relatively heavy plinth to damp any vibrations created in the dust cover as well as isolating the record and arm from airborne sound waves. With it up the cover is subject to what's in the environment and will resonant at its natural frequency. There are fundamentals that everything will be sensitive to, so it's about getting everything's response below ~20Hz or above ~20kHz.

    Tap your cover and you'll heat that it's gonna vibrate in the lower middle range while the plinth will be lower, more of a thump. Now put the lid down and it changes how it sounds. I suppose the best thing really would be to put the lid down and set a small bag of sand on top of it. Or even better, remove your dust cover and spray it with automotive undercoating rubber. It will be a /really/ good damper then. So what if it looks like heck, it's all about the sound.
     
  14. Benjamin Dashley

    Benjamin Dashley #NotMyModerator

    Messages:
    3,107
    Likes:
    5,603
    Joined:
    Mar 19, 2015
    Location:
    Nashville, Tenn.
    I've always heard that putting the cover down introduces unnecessary vibrations, but I've never noticed a difference. I usually have it closed because I put the record sleeve on top of it because I'm lazy. But I don't do that exclusively.
     
  15. MaxPGH

    MaxPGH Well-Known Member

    Messages:
    1,679
    Likes:
    3,118
    Joined:
    Feb 16, 2015
    Location:
    My own personal hell
    I always leave the dust cover down because one time I had put my record on and started the turntable and there was a beam of light coming through my window so you could see the dust in the air and I watched a ton of it shoot right towards the record so I leave it down to make less work for myself to clean
     
  16. tylershippit

    tylershippit Well-Known Member

    Messages:
    967
    Likes:
    1,816
    Joined:
    May 3, 2015
    Location:
    british columbia
    I leave mine down as well, because as mentioned; dust.
    my cover is transparent though so I can gaze upon the spinning wax and the dust collecting on the cover itself. I have some plants on the windowsill above my turntable as well so it prevents any pollen or leaves or whatever from falling on anything. (please don't flame me for reducing the quality of sound or whatever by having plants near my player because ¯\_(ツ)_/¯ .)
     
    kvetcha likes this.
  17. Taylor

    Taylor Well-Known Member

    Messages:
    2,318
    Likes:
    4,992
    Joined:
    Nov 7, 2014
    Location:
    Chicago Suburbs
    YOUR PLANTS ARE SUCKING UP THE SOUNDWAVES!!!! WHAT ARE YOU DOING!!!!!

    and in the process you are getting less oxygen. I think that's how that works anyway :D
     
    tylershippit likes this.
  18. theoriginaldon

    theoriginaldon New Member

    Messages:
    9
    Likes:
    10
    Joined:
    Feb 21, 2015
    Location:
    Cleveland, OH
    Down because my cat would ride on the record otherwise
     
    Last edited: May 25, 2015
  19. jamiel8668

    jamiel8668 Active Member

    Messages:
    113
    Likes:
    141
    Joined:
    May 4, 2015
    Location:
    Bendigo, Australia
    I don't think it really matters. The audible difference between the two is negligible.
     
  20. NoCo_Dave

    NoCo_Dave Well-Known Member

    Messages:
    1,125
    Likes:
    1,488
    Joined:
    May 12, 2015
    Location:
    Northern Colorado
     
    zomgbear, Bradley and Mike Keene like this.

Share This Page