There's another thread about this from 2013 but it kind of went in another direction so I thought I'd make a fresh one. I just picked up a dead mint EVH 5150 100 watt head with matching 4x12 for $1300. I was in the market for a MIDI controllable head to run a 4CM with my Helix but I couldn't pass up the deal on the 5150. I'm looking for solutions to be able to switch channels within patches on the Helix for the 5150. So far I've found: RJM Mini Amp Gizmo This seems to be the most common solution but it $300 for the switcher and cable Voodoo Labs Control Lab This appears to be a slightly cheaper version of the RJM virtually the same functionality for my purposes. Does anyone have any idea how much the cable from the EVH to the Control Lab is? BTPA AS-EVH10001-XX This is the cheapest solution but I don't think it will work with the Helix. It requires two relay switch inputs and the Helix only has one. Does anyone know of any other solutions to add MIDI functionality? Most of the products listed here are older and I haven't seen any articles about anything released recently. Would I miss functionality by going with the Voodoo Labs over the RJM if I'm only expecting to be able to change channels?