UK Superblock in good condition. This has been my primary amp (sits on my pedalboard) for about two years. It nails that AC30ish tone, and reacts like an amp because it is an amp. I played with it going direct, but it can also push a cab. Has dual lock on the bottom (easily removed). I still have the box and the 24v adapter (will also run off a 9v adapter, but won't push a full cab).
From the website-
The SuperBlock UK packs three classic amplifiers into the most extensible system you can fit on your pedalboard. Featuring JMP, AC Normal, and AC Top Boost voicings, the SuperBlock UK has all of your classic UK amp needs covered. For the first time, we are excited to offer all of tonal secrets in a pedal format along with our first AC voicings.
Fitting into a slot about the size of a double width pedal, the SuperBlock fits the power of a 25 watt tube amp right on your pedalboard when powered by our PS-24. For quieter applications you can also power it with a conventional 9v power supply for 1 watt of power. Features include two Cab Sims and an FRFR mode on the XLR Out and headphone out, three classic voices, Limiter, Reverb, and an effects loop.