I have an" old" Sunn 350b that has just been completely reworked but it still has an old problem the tech couldn't fix. When the volume is tuned up 3/4 - full it shuts down. No sound. Then within a few seconds it comes back on but does this repeatedly. Any ideas for what can cause this? Evidently he talked to numerous techs and no one had any ideas.
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Sunn 350b
- Thread starter Shaolinmarine
- Start date
No offense to your choice of techs, but your amp is a pretty straight forward hand wired point to point amp. You might want to take it somewhere else...
MONOLITHLOUD
Commercial User
- Jun 9, 2010
- 206
- 0
- Disclosures
- Owner, MONOLITH Loudspeakers & Effects
Agreed! I tried to locate a schematic for you but to no avail. Otherwise I would try and help.
MONOLITHLOUD
Commercial User
- Jun 9, 2010
- 206
- 0
- Disclosures
- Owner, MONOLITH Loudspeakers & Effects
Not sure what your problem is but damn...where are you playing that you need to turn a 350b up 3/4 to full on? I have never had mine above 5 on the volume knob, brutally loud.
But back to your problem, it's probably a heat failure in one of the components, check the dropping resistors in the power supply. It could be a failing solder joint as well. A good tech should be able to fix that.
Methinks the OP is in a very loud band. Possibly doom. I can easily see a 2000s/350B being turned up 3/4ths of the way in a doom band.
I run my 2000s at about half power when I'm playing with my psych blues band.....and that's quiet for us.........
But idk, I probably need mine serviced, as it's loud at 5, but not brutally, it's pretty bearable. Hm....
hey. just wanted to let you know, i had the same exact problem with my v4 a while ago. my friend ended up reflowing all of the solder joints in it, and it hasn't had a single issue since. sometimes, it really is that simple. good luck.
