Klipsch RW-12D now making an odd cracking noise. Cone is fine & the fuses on the back are fine. I suspect the internal circuit board / amp is giving way....again They have some sort of glue that ...

Klipsch introduced five new powered subwoofers with proprietary Digitally Controlled Subwoofer (DCS) Technology. The new Reference Series models include the RT-12d, RT-10d, RSW-10d, RW-12d and RW-10d ...

The Klipsch Reference Series RT Subwoofers were ... Rounding out the line are the RW-12d (12-inch woofer, $700), RW-10d (10-inch woofer, $500), and the only model without the top-side control ...