Jim McPherson said:It looks like you've got 2 T-amps in there, yet only 2 speaker outputs. How do you achieve "dual mono" with 4 channels that are not bridgeable?
ohenry said:Very cool, those are some extreme mods. Any first impressions compared to the past stereo version(s)?
What did you do about the input coupling caps (C3, C4)? On mine I removed and jumpered them out and then removed R01 and R02. This paves the way to add quality off board caps spliced into the connection from the volume control wipers to the PCB input pins. Be careful to not cross channels. I left the inductors in and didn’t change the feedback resistors.
I found this upgrade really helps the frequency extremes as well as removing grunge and grain.
Deep bass into 15 - 20 ohms is one area where they lack. Also seems to thin the lower mids. But this may be real ,maybe I am used to amps that fatten the low end and flesh out the lower mids.