Used vintage item. Dual Channel Tube Microphone / Instrument Preamplifier. We purchased this UA 2-610 direct from the legendary but now defunct Southern Tracks Recording Studio in Atlanta, Georgia. Such artists as, among others, recorded there: The Black Crowes, Bob Dylan, Outkast, Bruce Springsteen, and Rage Against the Machine. We maintained this unit in a smoke-free professional project recording studio, either racked or stored away. When purchased, we did not receive the original box, manuals, or literature. Thus, these items are not included. Rack-wear on rack eyelets as well as on bottom side of unit (visible in photographs). This was the condition in which we received the item. Otherwise this 2-610 is in healthy cosmetic condition and, of course, fully-operational. Images above are of the actual unit, taken in a professional photography studio environment. Rack unit derived from original UA console designed by Bill Putnam. In the age of digital recording, the most important link in your signal-chain, besides your microphone, is the quality of your preamplifier. The UA 2-610 has long been a staple of the recording industry. With this unit you get Universal Audio's esteemed tube sound, plus a slice of recording history (noted above). Item price includes free UPS Ground Shipping on Domestic Orders. International Orders may require additional shipping surcharge, depending on destination and final shipping cost.   Read more about the 2-610 via the Universal Audio Website:       Universal Audio 2-610S Features: "Classic sound of legendary 610 modular console Mic, line, and hi-Z inputs Variable input gain and output levels -15dB pad, phase reverse, and two bands of shelving EQ Multiple impedance settings Optimized frequency response as requested by users Updated silver-face cosmetics and enhanced build quality Custom wound double sized alloy transformers Ultra-quiet operation." Tech Specs