Studiophile AV 40 - Left speaker doesn't play as loud as right speaker.

I have set of M-Audio Studiophile AV40. The left channel is weaker than the right. This is quite annoying. Is there a fix for this? It's really quite annoying. Further there is no adjust to turn down the volume of the right speaker.

Reading the forums this appears to be a flaw with M-Audio equipment. Latent defect of some kind. Very frustrating. I am not sure I am in warranty. Nonetheless this is not the type of thing that should happen. What can I do to get this repaired?
5 people have
this problem
+1
Reply
  • Corey S (Official Rep) May 02, 2016 16:28
    Hi Lee,

    Sorry you are having trouble with that.

    Of the thousands of these units currently in use, this is not a very common issue to have. Before jumping to a problem with the hardware, please make sure that you have:

    • Tested with different cables (both for the input and to connect the speakers)
    • Tested with different sources (computer, phone, ipad, etc.)
    • Tested the headphone jack (does it do the same thing?)

    If you continue to have trouble, this may indicate a problem with the hardware. Warranty and non-warranty claims cannot be handled here on the forum but I can point you in the right direction. Here are a couple of options that you could choose from:

    • Submit a Warranty or Service inquiry with our Technical Support team by logging onto the M-Audio Support page. Select Warranty or Service Inquiry from the drop down menu. This will not require a support code

    or

    • For quicker support, call your nearest Support Office or International Distributor.

    I hope this helps! Let me know if you have any additional questions.
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • I’m frustrated
    1
    I checked the cables. I checked the output on the board itself with other speakers. I note that the powered speaker is quieter than the slave speaker. I do not know why the slave speaker would be louder than the powered speaker, but I checked the cable anyway.

    I think there is a problem with the hardware. I did try to submit a warranty request but did not hear back from anyone.

    I will try to contact a nearby support office - the only one listed:
    World Headquarters (US)
    200 Scenic View Drive
    Cumberland, RI 02864
    United States
    Tel: 401-658-5765
    Support: 401-658-5765
    Fax: 401-658-3640

    I have a 25 year old Sony receiver powering 30 year old JBL's - no problems. I have two powered boss speakers I found in the garbage room of an old apartment, checked them out, no problems. I buy brand new equipment from M-Audio, I get problems! When I ready your board and a number of other people have the same problems, I wonder if it's not the equipment.

    Can you provide a schematic diagram and map to the faulty 22uF capacitors. Sounds like a bad batch.

    Lee
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • I’m unbalanced
    1
    I just realized I have the same exact issue... I always just assumed the right speaker sounded louder because I sat closer to it. I would just use headphones if I needed to hear spacial sounds for gaming. I moved to a new home this week and my set up now has me more centered, and I was immediately aware that the left powered speaker plays significantly lower than the right.

    I read someone fixed the issue by removing the flux capacitor and soldering the do-hickie to the thinga-majiggy, but that stuff is a bit above my head. I know for sure I'm out of warranty, however I have always had only the best support from M-Audio in the past. Maybe there's still hope for my pair.

    Here's a photo of the low sound coming out of the left speaker. You probably won't be able to hear it. Ignore the dust.

  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • I’m sad
    1
    My AV40's just had the same problem occur. Upon searching it, it seems that it is a common problem and may be a capacitor issue.

    I'm out of warrantee so I am trying to figure out how to repair them myself. Disappointing because they were nice little speakers. I'd love to have them working again.
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • I’m Frustrated
    1
    I have the same issue, i will buy the single speaker if it is the right price if not than you all have lost a customer. I trusted M-Audio would last when i bought the monitors I'm disappointed. I need at least a discount on some new speakers i will send you the old defective ones just pay shipping and handling.
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • I’m happy
    Hi,
    The fix for the weak left channel can be found on this thread:
    https://getsatisfaction.com/m-audio/t...
    I had the same issue, and I replaced these two 22uF capacitors as described in the thread, then the left channel worked again !
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • Hey Joel,

    The thread you link to mentions AV30s. The pictures don't look like the insides of my AV40s Can you tell me which caps you replaced, please? Thanks!
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated

  • Hi Nick,
    This evening, I opened my AV40 and made a photo.
    The capacitors are the two blue ones on the top of the photo. In fact, when you open the AV40, they lie on the top of the card, but the photo seems to be rotated when I loaded it on this discussion thread, I added another global picture where you can see the blue capacitors to see the location ;-)). On my card, they are noted C12 and C13 as you can see in the photo (initially, the original capacitors were black).
    Best,
    Joël


  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. happy, confident, thankful, excited indifferent, undecided, unconcerned kidding, amused, unsure, silly sad, anxious, confused, frustrated