@twoleftears - I just bought my second PL Dialogue Premium HP amplifier so that I can run them as monoblock's. I haven't had one issue with my PL preamp or amp and if I did I'm certain my awesome retailer Upscale Audio would take care of me. All manufacturers have some issues, I use to own amps from Audio Research that cost 12K and I had to have the transformer replaced 3 months in due to a noticeable humming sound. It happens! Buy PL and be happy for lifetime. Easy listening.
Cheers!