Jim DeSclafani
New Member
- Joined
- Mar 16, 2017
- Messages
- 3
- Reaction score
- 2
when i turn on my JVM205 head ,after about 5 minutes , a screeching sound comes out last for 5-10 seconds, then the volume drops about 2 notches, and get alittle muddled, anyone else have suggestions before i start buying things that might not work, im thinkind preamp tubes?. starts out fine . then this happens and happens on both channels