And after another round of trials, my SC-1's were used by the touring engineer for John Doe (from the seminal LA punk band "X")...this was an acoustic show at the Great American Music Hall, and the pres were used on the vocals. Big, warm and detailed - that's how i would describe the sound and feel. No noise issues whatsoever - very, very nice.
I bought a pair of x72's off you a couple of months ago and they are simply the fattest, most toneful, huge sounding pre in my rack.... kick and snare have never been as fat, present, and in ya face!!, and a Les Paul through a valve vintage Fender...wow! THANKS.