Hi Bryan
Eclipse uses XLRs for balanced to balanced or balanced to unbalanced connections (useful for unbalanced gtr/bass gear) for +4dB line level signals, that is what you get by placing the Eclipse in a correctly designed amp FX loop or after a preamp. The 1/4" I/Os work on -10/-20dB instrument level signals, to plug in directly. So you get everything you need in this area. The unit can interface to just about anything.
Yes…the system dry/wet setting can be modulated by any external source, including pedals, footswitches and MIDI CCs. This can also be accomplished in any preset, instead of system.
best
I
