I have a pair of Vincent sp-t800 monoblocks and one started clipping at higher volume, I get an occasional pop from the woofer. I have swapped speakers, speaker cables and channels to eliminate my preamp and interconnect's. The woofer does something unusual as well, it will pulse in and out like a sign wave as well. Lower volumes are fine. Has anyone seen this or what may be going in the power section to cause this?
The amplifier is unstable at low frequencies, probably due to bad capacitors in the power supply.
Have it checked out.
Have it checked out.