This is true in theory but not so much in the real world of analogue. I have an Acoustisonic from fender that adds a lot of character to an acoustic. It tames the quack of the pick ups both from the preamp and from processing through the power section out of the speaker. the power section of amps impart a sound character to all guitars not just electric. the end result is a much more lush and pleasing sound vs a bright and biting sound from just a preamp alone into a PA. That is true for both tube and solid state acoustic amps. So yes acoustic players that are used to the sound that they get from an amp design for that instrument are not going to be happy with what is coming out of the Helix currently. I agree with the jazz rivet comment, it seems to like the acoustic but it would be nice to have a couple of options in the Ac guitar world. Including preamp models that are popular with Ac players. Some higher end tube pre's like Avalon 737, Sebatron axis, ADL And not surprisingly a Manly Vox Box sound incredibly good with ac guitars. When pushed they round of the transients in a very pleasing and subtle way without sounding over driven or crunchy. Something that most electric guitar amps that are tube don't really do. A typical recording and live path for ac players is their stage amp and stomps combined with a really good direct through a tube pre slightly driven to add air detail and sustain. In fact having a couple of those higher end pre's both tube and transformer based would be an excellent addition to the helix as they would benefit everyone. Neve's and Api's sound really good pushed just before break up too. They are as much apart of the sound as the amp's being played through. its a big reason why the the third party Ir's sound so good to everyone, They add that flavor that the generic super clean modeled cabs in the Helix lack. It's the same with solid state acoustic amps and their power sections. Does this clarify the subject a little? We totally need more everything in the Helix.