I recently went all tube. I mentioned some issues in another thread, thought I do a seperate thread about those issues. I'm experiencing a number of issues. I thought I'd share what I have and what the issues are to see if anyone can help. I've kinda narrowed it down to the power amp. Problem 1 Lots of back ground hiss, not horrible when playing, but between... annoying. Problem 2 When I lift the tone arm off a record at say 70 to 80db, it makes my power amp go into standby, shutting the tubes off. I can counter this by muting the pre before lifting the tone arm. Problem 3 If I increase volume to get an average of 80 db's, the amp eventually within the course of one song, goes into standby mode. Rogue Audio Perseus Magnum - My preamp, no problems here. I've isolated it by playing with solid state and all problems are gone. I have experimented with different gain and loading options and nothing makes solid state have my problems and no settings stop the tube amp from having these problems. Jolida JD1000RC - My power amp. So far I have tried to remedy these issues by: -cleaning the internal board snap on contacts -tightening the tube sockets -replacing and re-biasing the tubes Maybe the background hiss is just how tube amps act? But the standby is ridiculous. Jolida (Talked with Jared) suggested the steps I mentioned. They also suggested trying one side at a time to see if I can isolate the issue. I'll do that next. He offered to have me send it to him and then pay for a repair. It's likely going to be around $100 to $300 plus $80 shipping to him and likely $80 back.... What would you guys do?