Hello everyone,
I am a long time forum lurker but have only just signed up today. I have a pair of Mk1 Pentas that my dad gave to me about 5 or 6 years ago (love them). One of the pair has always had some kind of intermittent interference problem where the sound will distort for periods of time (random lengths of time), it has gotten progressively worse and recently i finally decided to pull my finger out and take a look. At first glance i noticed the Mid Range foams were shot so i have replaced these.
Now this was the first time this speaker has been fully disconnected from the mains for about 2 years, now when i have turned it back on, the interference problem is the same - if not worse, and the display now appears to be bugged out. The speakers are driven from a Harmon Kardon AVR, so the displays do not usually ever output anything. Now there are a couple of items permanently displayed at varying brightness's. My next troubleshooting step was to remove the Amp and see if there are any components that need to be replaced. Has anyone seen something like this before ? Any advice would be greatly appreciated.
Thanks