I think the piezo on the JP's sound great but I was wondering if anyone has tried using an acoustic simulator or something like the fishman aura to get it sound better?
I split the piezos off to channel 1 of the Quilter. That is usually blended with something I have going on in channel 2 so it is fine without any enhancements.
There are active and passive DI boxes, as there are active and passive acoustic pickups (JP piezos are active---- not sure if Ive ever seen/heard of passive piezo system, but could be wrong). An active pickup/piezo can be plugged straight into a PA, a passive cannot. So an active DI box allows someone with a passive pick-up be able to plug into the PA and be heard. Using a DI box with the piezo is just to tweak the sound to your liking. The Aura DI box also allows you to use imagining (12 string, nylon string, etc).
I have an active DI box-- which means I need to keep the gain really low to not distort the sound (active pickup to active DI can be a bit overbearing). I use it simply to enhance the sound… such as using a great amp.