Hi all. Recently I replaced all capacitors in my quite dated Klipsch RSW10 subwoofer. After completing the replacement, I plugged in the power cord, without any input connections, with the sub-woofer's on/off switch at OFF. Immediately, there's the loud buzz. I then reverted back to all the original stock capacitors but the buzz still came on. I did checked the two large capacitors (which happens to be snap-in type, 4700uF) and the measurement came close to what is stated. So they seemed to be in good shape. When I did the caps replacement earlier on, I used the radial type of caps for these two large caps, not snap-ins. Any idea what could be the problem causing the buzz? Thanks.