Hi,
First time poster, first time mesa boogie owner
I recently acquired a studio .22 (no lead volume, graphic EQ) for which I traded a blues jr III. I was never a fan of that blues jr so I figured it was worth the risk.
The previous owner didn't play out and didn't use the amp much so the physical condition is excellent but the pots were very dirty. After cleaning the pots, all seems mostly well except the amp is a bit noisy. The best way I can describe the noise is as white noise. The tubes are mesa boogie and probably original to the amp although the power tubes look newer. I thought maybe it was preamp tubes in v1 and v2 as thats what I read on forums and the manual for initial trouble shooting this so I switched them out with v3 and v4 and that made no difference. I also tried another 12ax7 I had on hand in both v1 and v2 with same results.
However, I made a curious discovery: When the volume is at 0 or 10 (technically passed 9), this hiss/white noise went away and this made the amp about as quiet as most tube amps i've heard. Amp worked while dimmed (cool slight break up on rhythm channel). This noise happens on both channels but was much less prominent on the lead (I thought that was odd since the lead channel is a lot louder than the clean).
Any thoughts or advice?
Thank you so much for any help.
First time poster, first time mesa boogie owner
I recently acquired a studio .22 (no lead volume, graphic EQ) for which I traded a blues jr III. I was never a fan of that blues jr so I figured it was worth the risk.
The previous owner didn't play out and didn't use the amp much so the physical condition is excellent but the pots were very dirty. After cleaning the pots, all seems mostly well except the amp is a bit noisy. The best way I can describe the noise is as white noise. The tubes are mesa boogie and probably original to the amp although the power tubes look newer. I thought maybe it was preamp tubes in v1 and v2 as thats what I read on forums and the manual for initial trouble shooting this so I switched them out with v3 and v4 and that made no difference. I also tried another 12ax7 I had on hand in both v1 and v2 with same results.
However, I made a curious discovery: When the volume is at 0 or 10 (technically passed 9), this hiss/white noise went away and this made the amp about as quiet as most tube amps i've heard. Amp worked while dimmed (cool slight break up on rhythm channel). This noise happens on both channels but was much less prominent on the lead (I thought that was odd since the lead channel is a lot louder than the clean).
Any thoughts or advice?
Thank you so much for any help.