Hypieran said:
Ok so I have a NUX PMS2 midi switcher hooked to my Mesa external switcher inputs. I can manually use buttons on switcher to change channels on amp but can figure out how to have Helix LT send the commands. I can get into commands and midi stuff on helix but cannot figure out which to send etc. The manual for PMS2 is horrible. Anyone help?
I'm using the nux on my Roadster. Seems to work fine. Yes, you have to figure out how your Helix will be sending the midi. And you have to program the nux to receive on the same midi channel on which the Helix is transmitting (or omni mode) and set it to latching mode. The nux responds to program change commands. On my Boss GT-10, the program change was "hardwired" (factory-assigned) to each patch, and was sent when switching to that patch, automatically. With my MS-3, which I'm currently using, I can choose which program change to send per patch, which is much more flexible.
A couple of other oddities that I've noticed, which may or may not apply to your Rectifier: The channel lights on the head act a little strangely when switching by the jacks on the back with the nux. In my case the channel one light stays on even while another channel light lights up when it's switched to. And some are dim, some are bright. Also, the remote footswitch lights don't respond to the nux channel switching, which is kind of a bummer. Finally, you can only use the footswitlch to switch channels when the nux is currently switched to channel one on the head.
Another fun fact: from what I've read online, the nux pms-2 doesn't work at all in momentary mode, like it's supposed to. Some kind of problem with an eprom, I think. Not a problem that affects us, though, since our amps use latching for the switching.