Can stacking a receiver on top of a CD player cause scratching on CDs?

Discussion in 'Audio Hardware' started by Waspinators, Oct 12, 2019.

  1. Waspinators

    Waspinators Forum Resident Thread Starter

    My current setup includes an Onkyo TX-8220 receiver (15 pounds) stacked directly onto an Onkyo C-7030 CD player (11 pounds). I’ve been playing CDs through this space-saving configuration for over a month with no issues. That said, last night I was playing a CD for the first time (a 78-minute Grateful Dead CD), and it played perfectly up until the very end of the last track when it started briefly skipping and then ended playback. Upon inspecting the CD I found an inch-long concentric scratch on the very outer edge that had clearly caused the skipping.

    What I’m wondering is: what are the chances that the CD came out of the factory with the scratch vs. the CD player causing it? I’ve yet to have this happen to any other CD, but now I’m questioning if stacking the receiver on the player could be causing the top of the 7030 to bend, causing the laser or something else to scratch the CD. Now if that is the case, would simply finding some sort of shelf or rack to stack the receiver on fix the issue or could this have permanently damaged the player?

    Here’s a picture:
    [​IMG]
     
    Last edited: Oct 12, 2019
  2. avanti1960

    avanti1960 Forum Resident

    Location:
    Chicago metro, USA
    does the receiver have spikes?
     
  3. Manimal

    Manimal Forum Resident

    Location:
    Southern US
    Only if you put the cd between them:) kidding,
     
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  4. patient_ot

    patient_ot Forum Resident

    Location:
    USA
    IIRC the owners manual for the C-7030 says not to set anything on it. I certainly wouldn't put a 15lb receiver on it. Never had mine scratch any CDs. Are you sure the scratch wasn't there before? Whatever happened, probably time for an equipment rack.
     
  5. Thorensman

    Thorensman Forum Resident

    Having stripped down a few players
    Its nigh on impossible for laser to cause this.
    Does your player have a standard tray
    To place cd in,
    Or a device to draw cd in as players found in cars.
    The latter could cause a scratch if dirty.
    Again, i have never encountered this
     
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  6. Waspinators

    Waspinators Forum Resident Thread Starter

    It’s a standard single tray.
     
  7. Tartifless

    Tartifless Forum Resident

    Location:
    France
    It is highly unlikely the scratch was caused by the fact a receiver was stacked upon the player.
    Those are 2 completely unrelated fact.
     
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  8. Thorensman

    Thorensman Forum Resident

    Might be worth an examination.
    If it recurs.
     
  9. Bradd

    Bradd Forum Resident

    Location:
    Chester, NJ
    Why not reverse them, CD player on top?
     
    Dennis Metz likes this.
  10. Audiowannabee

    Audiowannabee Forum Resident

    Location:
    Florida
    Dont put nothing on top of reciver...ull block those airports ...too much heat n you'll fry ur avr...get a rack/shelf
     
  11. rcsrich

    rcsrich Forum Resident

    Location:
    Virginia
    I'd be worried about the heat from the receiver overheating the CD player...
     
  12. Waspinators

    Waspinators Forum Resident Thread Starter

    I opted to stack the receiver on top, since the receiver has top vents and generates heat.
     
    Dan Steele and Big Blue like this.
  13. Bradd

    Bradd Forum Resident

    Location:
    Chester, NJ
    Good point.
     
  14. Audiowannabee

    Audiowannabee Forum Resident

    Location:
    Florida
    That was the smarter thing to do...but heat can ruin equipment
    I don't see any problem with way u have it...but i advise to always leave atleast 2-3 inches inbetween components
     
  15. F1nut

    F1nut Forum Resident

    Location:
    The Mars Hotel
    Not possible for the lightweight receiver to cause any damage to the CDP or CD.
     
  16. Audiowannabee

    Audiowannabee Forum Resident

    Location:
    Florida
    Op i dont know how much heat ur CD player puts out...get a way to raise that avr up further off ur CD player....get a shelf!
     
  17. Carl Swanson

    Carl Swanson Forum Resident

    OP, ask yourself . . . how could that possibly happen?
     
    BruceS, Kyhl, Doug Walton and 3 others like this.
  18. Litejazz53

    Litejazz53 Enjoying the Beauty of "Crystal Clear" Digital

    No way the receiver is doing the damage, first of all, all the weight, and there isn't much, is away from the CD drawer. If you had weight problems, your CD drawer would not operate freely. If you will notice, the weight distribution is well away from the CD drawer. I am assuming the top housing covering your CD player is NOT some lighweight plastic, if it's metal, I would bet the receiver is not flexing that case at all, it's not the problem.
     
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  19. Carl Swanson

    Carl Swanson Forum Resident

    If there were enough weight to affect the CD player, the top of it would be visibly dented.
     
    The FRiNgE likes this.
  20. Michael

    Michael I LOVE WIDE S-T-E-R-E-O!

    best bet is to have your receiver on a separate shelf...
     
  21. Carl Swanson

    Carl Swanson Forum Resident

    Not a big issue. CD player doesn't throw a lot of heat, and the receiver is on top, and heat rises.
     
    Michael likes this.
  22. Michael

    Michael I LOVE WIDE S-T-E-R-E-O!

    still I prefer mine separate...gotcha.
     
  23. Carl Swanson

    Carl Swanson Forum Resident

    So do I, but space is an issue sometimes.
     
    Michael likes this.
  24. Michael

    Michael I LOVE WIDE S-T-E-R-E-O!

    Indeed...been there, but I was never comfortable stacking anything above or below my receiver...so I made it work! ; )
     
  25. The FRiNgE

    The FRiNgE Forum Resident

    Some CD's are dished, so the laser can come into contact with the disc, most likely near the outer rim. This would a defective disc, not the fault of the player. You should hear a scraping noise, but could be masked with the volume turned up. My guess is a defective/ dished/ warped disc.

    The chances of getting stuck by lightning would be a quadrillion times greater than a CD damaged by any device stacked on the CD player. There is always plenty of air space under the cabinet top and sides, plus also the laser transport is suspended on a separate subchassis.
     
    nosliw likes this.

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