I didn't test it though (I don't see how one single plug can deliver ac and dc at the same time and, unfortunately, I don't have the manual). You connect there the output of a 9v adapter, which then supplies power to a pedalboard that supports phantom power with a 7-pin midi connection, shucks!But you can make one yourself that goes out from the ada as a 7-pin, carrying phantom power, and then goes into the pedalboard with 5 pins plus a dc9v plug.

Boosting it helps keep it nice and tight, but it then has a problem with getting too thin.

Even paired with a good poweramp, I was never able to get a fully satisfying tone out of this device.

The front and rear input jacks also sound different, although there is a mod to fix this.

The LCD is easy to read, and scrolling through the menu is no problem at all.

It does have a good clean channel in it but the thing lives in the high gain territory.

It really scream when coupled with a Super Strat guitar. It will sound good with a Les Paul as well, but something about the voicing just wants a Charvel plugged into it.I thought my JCM800 could do a much better gain tone than this ever could, and I'd take that over the MP1 despite the MP1 being a lot more versatile. It must be at least 20 years old, 2 tubes (I don't know how you can fit a third one in there, there's no room left! I tested it out of curiosity, it's the witness of an entire era!There's a loop that you can program with the sound itself, which is very good, since it spares you from having to buy a second MIDI device.It was featured on many albums and used by a wide range of famous guitarists such as Paul Gilbert and Nuno Bettencourt.Housed in a 1U chassis, the preamp has quite a few features, including full MIDI integration.OVERALL OPINION This is a fun preamp that can give you a great sounding Marshall tone great for hard rock and metal. So go for more and some for less but that is nice medium for the going rate.