Barber Electronics Compact Direct Drive

This is one of the best Marshall-in-a-box pedals out there. It is surplus to requirements as I don't play out. You will not be disappointed when you try it. There is a LOT under the hood on this thing, goes from a pretty clean boost to way over the top overdrive. 2 switches provide extra flexibility in combination with the standard 3-knob thing.

Here's the manufacturer's blurb:

The Compact Direct Drive contains the tones of the previous incarnation of the DD, high & low gain plus switchable harmonics, for an extremely wide range of British inspired overdrive & distortion. Measuring only 2.3" wide, the Compact Direct Drive brings a colossal catalog of vintage British voice to your pedal-board. We packed the most desirable sounds of the Direct Drive, Direct Drive Low Gain (LG) and Super Sport into one clean and compact pedal. If you like the sound of the early UK combos with kt66 tubes, it's in there. If you bleed for the sound of a 4 input head with a wall of 4x12 cabs, it's in there. If you live for the sound of a carefully modified master volume gem from the early 80's, it's in there too. The Compact Direct Drive uses a simple layout of three knobs, a gain toggle and a harmonics toggle to delivery it's wide array from elastic-bells of GZ34-sag, to the hells-bells of a tight EL34-crush. Throw away the clock, tell the family you're taking a solo holiday, there is a Compact Direct Drive on the way.
The Compact Direct Drive has real honest solder lugs for jacks, true-bypass footswitch, toggles and pots. There are no worries about PCB mounted thru-panel parts that can't be serviced on the road, or that lead to high cost repairs.