visualrocker69
Well-known member
Hi, the guy who bought my Mark IV is having issues with R1 volume.
Any ideas what could be causing it? My initial thoughts are either the GEQ kicking in on R2 with frequencies boosted, or a bad preamp tube perhaps?
Please help! I want to be the perfect seller who considers it his duty to assist with troubleshooting
ameer_armaly said:Do you know any reason why rhythm 1 would suddenly go much quieter than rhythm 2? I now have to max out the gain to even hear it where previously gain in the lower half of the spectrum was fine. I checked all the other volume controls and they're all the same as they were; all other channels function normally. I'm waiting on a response from Mesa now; what's the state of the warranty on this amp?
Any ideas what could be causing it? My initial thoughts are either the GEQ kicking in on R2 with frequencies boosted, or a bad preamp tube perhaps?
Please help! I want to be the perfect seller who considers it his duty to assist with troubleshooting