TSSUB15 red light and burning smell

My band used our TSSUB15 for a mic-ed kick drum, but we could never really get it loud enough without the red LED light kicking in. We're a small 3 piece band and we play relatively small and quiet gigs, so we definitely don't get too loud.

The LED is normally flashing green and seems loud enough if I'm playing DJ music through it. But with the live kick, it seems like there's no headroom. The input gain on the kick drum mic is relatively low and does not peak on my mixer. I tried an AKG D112 mic and other mics, and different positioning of the mic to no avail. I have the volume knob on the sub at around 12 o' clock, and anything over that will make the light consistently flash red.

We also use an electronic drum pad with built-in standard Roland 808 and 606 kick sounds, and those actually started to make the sub smell like it was burning plastic, a very strong smell. We were in the middle of a song and we thought the venue was on fire, I looked over and the red light was flashing, so I turned down the sub and the smell and red light went away, but then it was too quiet again.

For our next show, we reduced the gain quite a bit on the drum pad. It has decent headroom on my mixer. But it seems like the red light was coming on even more now.

Perhaps I need to repair the sub, or should we just bite the bullet and get a bigger more powerful sub for live kick?
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  • Hi Dave,

    Sorry you're having issues with your TS Sub.

    It sounds like your product may need to be serviced. Warranty and non-warranty claims are not 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 Alto Pro Audio Support Page. Select Warranty or Service Inquiry from the drop down menu.

    or

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

    Make sure to reference or link this thread to help out the support team.

    I hope this helps! Let me know if you have any additional questions.
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  • Thanks for your help.

    Is the red light limiter actually supposed to limit the dBs and prevent the sub from overheating?

    Should the green light be flashing during normal operation?

    Could you tell me the difference between my case, and the one in the following thread?
    https://getsatisfaction.com/alto_prof...

    In that thread, he was smelling something as well, but he was told his sub didn't need repair. Is the difference because I am using a mixer and my input isn't peaking on the mixer? I've had this sub for many years, so if that's the case, I'm wondering if it's never worked properly from day 1.

    Thank you.
    • Hello, Dave

      No, that is just a signal that shows you when you should bring your input down so you don’t overwork your sub. This customer was told he did not need service because he was sending a line level signal straight into the Sub, so yes its because you are using a mixer.

      If you continue to experience an odor emitting from the Sub frequently when used at higher levels but not clipping you may need to get it looked at.

      Here is a list of our recommended repair centers:
       
      •         Recommended Service Centers
       
      Thank you for your patience!
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  • Should the green light be flashing during normal operation? The manual seems to indicate that it shouldn't be. It only says it "illuminates when the audio signal being sent to the subwoofer is clipping or distorting."
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  • Hello, Dave 

    Thanks for posting! 

    Does the green light turn off when there is no audio running through the Sub? Typically it will blink signaling that its receiving audio. If you are continuing to get a bad odor from the speaker, you may want to follow Bill's instructions above in order to get in contact with a repair center.

    Hope this helps! 
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  • Yes the green light only flashes when there is audio. So if you're correct, it sounds like the manual is incorrect/misleading then. Thank you for clarifying.

    I'm not getting a bad odor now because I'm keeping the sub volume knob down, but I'm not sure if we should go the repair route yet because I still have a couple questions I'm waiting to hear back on, from my 2nd post above.
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