after building more than 60 different OD/distortion/fuzz tones, i decided to build a few compressors and surprisingly, i'm happy with all 4 of them that i've built thus far. back when they first came out (in the 70's) i used to own an Armstrong Orange Squeezer and i really liked it, so i built one from the original schematic. they're not at all flexible, since they're just either on or off, but IMO, they do sound really nice. the second one that i built is the Rothwell Love Squeeze. I think these are very nice (and quiet too). my build has no low end loss (i don't think the originals do either), but i'm going to add a clean blend circuit to it before i box it up. even on its own i'm pretty happy with it. IMO, it's very smooth and full sounding. third up is the Keeley 4 knob compressor. stock, it had a slight bit of low end loss so i modded mine for use with a bass and i absolutely love it. with some settings, it can even get up to moderate overdrive sounds out of it that simulates the 'push' of a tube amp at it's sweet spot. here's a couple of pics of the Keeley clone: .....and the fourth one that i built is the Emma Transmorgrifier. i also modded this one for no low end loss. IMO, its a great compressor now and is actually capable of heavy overdrive. i plan to mount it in its enclosure tomorrow. i'll also add a few clips of them in this thread using my trusty p bass.