The amp output is 60 watts RMS voiced to Edward Van Halen's specifications and identical to amps used by him for touring and recording.
The amp specs are:
- Five 12AX7 preamp tubes and two 6L6 power amp tubes;
- Footswitchable lead/rhythm channel select and reverb defeat;
- 3-band EQ, resonance and presence controls;
- Rhythm channel: pre/post gain controls, bright/crunch switches;
- Lead channel: pre/post gain controls;
- Two SheffieldŽ 1200 12 inch speakers voiced to Edward's specifications;
- Closed-back cabinet;
- Footswitch included.

And its dimensions:
- Unpacked Weight: 84.50 lbs;
- Unpacked Width: 30.1250 in;
- Unpacked Depth: 12 in;
- Unpacked Height: 24.25 in;
- Packed Weight: 94 lbs;
- Packed Width: 33.50 in;
- Packed Depth: 15.25 in;
- Packed Height: 28 in.
Regarding this combo amp, the initial fear is that a signature series amp of any sort would produce limited sounds and therefore have little use for the average guitarist. In this case, that's wrong. This amp is just as versatile as it is loud, with the only limits being what you choose to do with this amp.
The only faults found with the amp were the awkward placing of the handle (having only one, centrally located on top of the 85-pound amp), which makes it difficult to carry, and the lack of casters, which could alleviate some of the difficulty in lugging this thing around when playing out.
With these two faults set aside for the sake of achieving outstanding tone, this is the best amplifier one can get for the money. Recomendations include plugging into one as soon as possible, or as soon as you decide to get serious about tone.
Some pictures to follow.

Front view:

Back view:

Top view:

Seal:

Seal:

Another front view:

Yet another back view:

Panel closeup: