I am not that familure with the ELT sub, but I am going to guess, the power supply caps are going bad like most of the other subs they sold..... I would measure he cutout for the amp and see if one of the PE amps will fit
I have a Rocket ELT SW-10 sub that I've left on for the last year or so and now I'm getting a noticable buzzing. Not sure if the power supply is going or if some caps are crapping out. Anybody know where I can find a replacement amp? I haven't taken it to Igor my local TV/electonics repair guy yet, but I'd thought I'd check here first.
Hanx!