by Ty_Bower » Wed Apr 07, 2010 8:22 pm
Writer Frog wrote:I prefer to keep the signal ground separate from the chassis ground, but I like to defer this to someone who has actually built an amp with the rev c board.
I've got a Rev C around here somewhere...
I didn't pay any particular attention to the grounding scheme. This amp is quiet as a stone. No hum. I can try to take better photos or resistance measurements if you like.
The aluminum chassis is powder coated, which most likely insulates it rather effectively from just about everything. The line power comes in through an IEC module. Judging by my photo, it appears I neglected to connect the safety ground to anything. The RCA input jacks are isolated from the chassis by means of fiber washers, as if the powder coat wasn't enough.
Maybe this is an example of "do as I say, not as I do." Clearly I've violated just a few safety rules here, though I suppose it's no worse than a stock 1960's unit. It is awfully quiet....
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."