dptone5
Well-Known Member
I have played on our church worship team for decades and never had an amp failure. We use a Vox AC30 through a Suhr Reactive Load IR and it has been great.
So we have an outdoor service in our town park. Decided to use my 1987XL Plexi through my Suhr and the other guitarist was using a Helix. We went through rehearsal and my tone was sounding terrific. Used the Plexi with a little crunch from the amp and was pushing it with a BB Pre-Amp for any lead work. Sounded great in the in-ears as well.
So between rehearsal and the service, I powered down, first by going on Stand-By for a few minutes. Powered up the by leaving it on Stand-By for a few minutes, just like I should. We start the first song........NOTHING!
It was clear the amp wasn't giving any signal to the Suhr. I shut the amp off, and not knowing if the issue was the amp or the Suhr, I put a cable between the front end of the pedalboard and the loop, and went from pedal board to the direct box. Was ready for song #2. Needless to say, my tone was awful. Thin, no presence, no sustain.
When I got home, the H.T. fuse was blown on the Plexi. I replaced and powered up, and it was fine. I know the H.T. fuse generally means that there is a problem with the power tubes, so I am going to replace them and determine if that was the issue.
I don't play the Plexi much, since I have Master Volume heads at home, but it has been 5 years since the power tubes were replaced.
So my questions are:
1) When you play out or gig, do you have a back-up head available and ready for use if there is a problem?
2) If not, what other alternatives exist for back-up?
3) How often do you change tubes on an amp that may get less than 40 hours of use per year?
Thanks in advance for your input!
So we have an outdoor service in our town park. Decided to use my 1987XL Plexi through my Suhr and the other guitarist was using a Helix. We went through rehearsal and my tone was sounding terrific. Used the Plexi with a little crunch from the amp and was pushing it with a BB Pre-Amp for any lead work. Sounded great in the in-ears as well.
So between rehearsal and the service, I powered down, first by going on Stand-By for a few minutes. Powered up the by leaving it on Stand-By for a few minutes, just like I should. We start the first song........NOTHING!
It was clear the amp wasn't giving any signal to the Suhr. I shut the amp off, and not knowing if the issue was the amp or the Suhr, I put a cable between the front end of the pedalboard and the loop, and went from pedal board to the direct box. Was ready for song #2. Needless to say, my tone was awful. Thin, no presence, no sustain.
When I got home, the H.T. fuse was blown on the Plexi. I replaced and powered up, and it was fine. I know the H.T. fuse generally means that there is a problem with the power tubes, so I am going to replace them and determine if that was the issue.
I don't play the Plexi much, since I have Master Volume heads at home, but it has been 5 years since the power tubes were replaced.
So my questions are:
1) When you play out or gig, do you have a back-up head available and ready for use if there is a problem?
2) If not, what other alternatives exist for back-up?
3) How often do you change tubes on an amp that may get less than 40 hours of use per year?
Thanks in advance for your input!