It doesn't take long after plugging into Two-Rock's latest creation, the Bloomfield Drive, to realize that it's rooted in the Dumble sphere of influence. It was one of the standouts for me at this year's Winter NAMM show. And even amid the painful cacophony of the show floor, I was able to get a few minutes with the amp and noticed it was special.
It’s a two-channel amp with cascading gain stages, half-power scaling (it’s available as a 100/50 head and 40/20 combo), and a 3-spring analog reverb. Each channel shares a 3-band EQ along with a series of corresponding toggle switches that boost that frequency range, brightness, and more. (Both the channel and tone stack can be altered with the included footswitch.) We dug into the 6L6, 100/50-watt head and matching vertical 2x12 cab.
Above each tone knob there’s a toggle switch that gives corresponding frequencies a boost. Additionally, on the far left-hand side there’s a toggle that lets you move between EQ 1 and EQ 2, which I suspect is similar to the rock and jazz settings on some Dumble-style amps. The EQ 1 setting is a flatter curve while EQ2 sounds more like a full frequency boost with some added gain. This switch alone is a godsend for players who move between single-coils and humbuckers during a set.