This is my desert island compressor. Absolutely adore this for vocals and anything else I want to acquire a lush, analog quality. Do your research on this one. There are many options/selections within the unit to get you from creamy/mild to fuzzed out/asymmetric compression. Fantastic for mild during tracking and color/effect during mixing. HATE to sell this one (worked for years to finally get it), but opening a live music venue forces sale. Minor rack hash on top and bottom (see pictures). You'll want a well ventilated/solid rack setup for this piece. Lots of hot and fragile tubes and it's heavy. Extremely solid and beautiful build from Retro Instruments.