I’m frustrated

TS Sub15 crackling sound

1.when bought this one 2 yrs ago, I observed it took 30 minutes or so...to warm up, b4 it kicks in to give sound
2. After my pro coverage expired few months ago.. after his attitude of warming up..its sounds like from the grave..very less, just crackling distorted...then died eventually...no more sound period.
3. I opened it subwoofer and measured an impedance of 4 ohms using a VOM....so it means the circuit board has a problem..
4. but it has 1 small circuit board for its pre amp on it and then a big Circuit board for Power regulation and amplifier circuit. to drive sound...
5. my Question is..have you encountered this scenario...which circuit and or component have you replaced it to work?
1 person has
this problem
  • Hello Tony,

    Thanks for the post. I'm sorry to hear about your experience. I'm not a service technician for your speaker. You'll need to reach an authorized Alto Professional service technician for this type of info. Warranty and non-warranty claims are not handled here on the forum but I can point you in the right direction to help you out! Here are a couple of options that you could choose from:

    • Submit a Warranty Claim or Service Inquiry with our Technical Support team by logging onto www.altoproaudio.com/support. Select Warranty Claim or Service Inquiry from the drop down menu.


    • For quicker support, call your nearest Support Office.
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