- May 26, 2013
- St. Louis, MO.
- Born and Raised In The 700 Watt Club.
The Huge Hum monster is gone. I have spent the day incorporating Joe's ground scheme at that corner of the amp. I didn't want to do it, but it was gnawing at me. In my last photo here, I show that I cut that white/black/green wire that was connecting from the last triple solder block on the back wall, over to the normal mode/direct coupled switch. Along with a two 220k ohm resistors. My new RCA connectors have a ring with a solder tab that sits flush with the RCA outer shell and against the floating copper plate. I used that tab to add in the 220K ohm resistors as shown in Joe's photo. If you put your face REAL close to the speaker; (and I mean within 1/8 of an inch, you can hear a hum). But its the same hum, if not quieter than my other two factory phase Linear's. So I am ok with this. Now.................to clean up, organize, and get these things fully working.