Here is one of my trusty UA LA610mk2 (I have 2, but rarely seem to ever use both, hence the sale). I love these units on SO many sources, including... Vocals, Bass, Guitar, Mono Drum Room, Fender Rhodes... Most things TBH...

The condition is really good and works perfectly as expected. Includes manual and power cable.

Please ask any Qs!

Here's the AI blurb:

The Universal Audio LA-610 MkII Classic Tube Recording Channel is an all-tube, vintage channel strip that combines a legendary 610 mic preamp and EQ section with an authentic Teletronix LA-2A-style optical compressor in a single 2U rack unit. It is highly regarded for adding warmth, richness, and classic analog character to vocals, bass, guitars, and other instruments. Key Features and Tone

• Legendary Tube Preamp: The preamp design is based on the modular consoles developed by Bill Putnam in the 1960s, used on countless classic recordings from Frank Sinatra to Van Halen. It provides a wide range of tonal options, from clean and transparent to harmonically rich, depending on how hard the tubes are driven using the gain and level controls.
• Authentic Optical Compression: The compressor section uses the same electro-optical "T4 cell" found in the famed LA-2A, known for its smooth, program-dependent, and musical leveling effect. It's simple to use, with a single Peak Reduction knob, allowing engineers to control dynamics easily and musically without worrying about complex attack and release settings.
• Integrated EQ and DI: It features a two-band, high and low-frequency shelving EQ with selectable frequencies, which is musical and useful for subtle tone shaping. A front-panel Hi-Z input makes it an excellent direct box (DI) for recording instruments like bass and electric guitar.
• Modern Enhancements: The MkII version includes user-requested updates from the original, such as a true bypass for the compressor circuit, a larger and better-lit VU meter, increased output signal performance, and an auto-sensing universal power supply for worldwide use. 

The LA-610 MkII is widely praised for its high build quality and ability to impart a professional, "radio-ready" analog punch to recordings, making it a valuable investment for project and commercial studios alike