I picked up a pair of Ampex 2044 suitcase amps this past weekend for $80. They look to be in excellent shape with brown cases. Ampex suitcase amps have been on my radar for many years but I haven't been able to find much info on this (2044) version. I did come across this thread which compares the older 620 and the 2010 model: http://www.audiokarma.org/forums/in...ampex-620-and-2010-amps.780546/#post-10727117 Does anyone have a schematic or any info on the 2044 model? I assume it's probably similar to the 2010 but I'm wondering what differences there might be.