I purchased this product to help use my mesa mark v and dual rectifier with my midi rig (voodoo labs gcx)
It is a simple product, clearly labelled, and almost very plug and play.
All I had to do to get it to work was plug the power in, connect my cables (runs mesas via 4 separate guitar cables), then program it as a second gcx within my ground control pro. each cable corresponded to a numbered loop (1 to 4) within this 'second gcx' and to a control on the mesa, in the rectifiers case, 1 to 4 off was just clean channel, 1 was channel 2, 2 was channel 3, 3 was solo and 4 was fx loop.
The quality was not quite the same feel as other voodoo labs stuff I own, feeling much lighter and the led to signify the power is not as bright as I would have expected, however this is a very minor thing, nitpicking even. it is a metal structure and once it is plugged in, does not require touching again, so it does not need to be as sturdy. The lightness could also be seen as a positive as well if you wish to sit this on top of the amp, however I have mine in my rack unit.
I would recommend this without a doubt. Especially for mesa users as it means that you can use your midi switching without sacrificing banks in your gcx to act as switchers for the amp.
