Pass labs poweramps


Anyone experience little popping sounds after powering down their pass lab amps? I assume these sounds are the circuits shutting down.

givin2u
I've had an F5 for about a year. I've never heard any noise when my amp is warming up,or cooling down. Maybe I should get my hearing checked. :-)
Same here with my 250.8 clinking sound about 20 minutes after being turned on. Haven't really stuck around after shut down to see if the same happens on cool down.

Thank You guys for sharing your customer service experiences.It is imperative to post both positive / negative stories when dealing with these companies.
Happy Listening!
I called Pass and it is very normal its the heat sinks expanding no worries, enjoy the music.