The UAFX Ruby '63 Top Boost Amplifier pedal gives you the quintessential British valve amp beloved by artists and producers for over 60 years, from Queen to U2 to Radiohead. Built on powerful dual-engine processing and UAD modeling expertise, the Ruby '63 effects pedal delivers choirboy cleans, complex overdrive, and classic vibrato.

I've only used this unit in my home studio. It has very light marks which is why I'm selling it at a cheaper price. You can use it as an amp or you can bypass the amps and use its delicious tones as a gain pedal! Universal Audio is top of the line! I just need to make room in my studio and need the cash :-)