Great pair of tube preamps with full featured compression. Dual mono or stereo linked operation. The VU meters can be switched to monitor level or gain reduction. Each channel has a separate line input so you can just use the compressors. It also has front panel 1/4” inputs with switchable impedance for guitar or keyboards. Overall a super versatile unit with a nice thick sound. I mainly used these for drum overheads, vocals, and horns. I’m only selling because I have way too many pres and not enough rack space. It’s in perfect functional condition. Visually it has some rack rash and a minor scratch on the front plate near the power switch. The power toggle switch appears to be bent, but it works fine and was like that when I got it, and never was an issue. Thanks for checking it out. I’m open to reasonable offers. I will ship next business day after payment.