Yes I realize that the T5 is an electric guitar. However, when I play (live) through my Bose T1 and L1 compact, it just just sounds "warm" and "acoustic." I'd be happy to get the sound at around 2:00 on this video https://www.youtube.com/watch?v=iEsnY_t0Yvk. I'm looking for folks with a similar setup that I have though. Anyone?
Long time T5 and Bose L1 user here. Picked up my Maple topped T5 early 2006 (it's birthday is November, 2005) and have gigged and recorded with it often over the years. I typically pull it out when the stage will be cramped and there's not enough room for spare guitars. In this case, I'll use a Zoom G3 (Also very compact) for effects as it sounds great and I've sert up specific patches for clean annd acoustic tones.. The G3 also has a balanced output that can go direct to FOH or other PA system.
As for the Bose L1, I want to say I've using it about as long, if not a little longer (2004). Started off with the Model One and 2x B1 bass modules. Was an early adopter of the T1 and was actually involved as a beta tester as they refined the firmware and features. Traded in the old Model One for the newer Model Two earlier this year (Lighter, better coverage but lower output power).
Taylor was one of the first guitar companies (if not THE first) to partner with Bose in order to create the model specific presets. Bose sent out a CD with the preset files for the Model One, and you had to find a CD player that could connect to the data port of the L1 power stand in order to transfer them into the system. You received a folded card that you stuck inside the control panel door that had the revised preset numbers. You didn't have the T1's advantages of the effects and other niceties, but the EQ settings sounded great.
Sorry... Rambling...
The Bose L1/T1 combo and its flexibility is going to get you close when you use the preset. It works fine for live situations, but I still prefer to play a full size acoustic when possible. The ES system's sounddboard transducer actually let's you hear the "air" inside the guitar body. This sound actually changes dependent on the body size. The T5's Expression System voice simply doesn't have the depth of a full depth guitar's ES tone. It is definitely much closer than a basic piezo UST on an acoustic or the Fishman X-Bridge on an electric guitar. As for the Fishman Aura, I tried it recently when I bought a Gibson Hummingbird with a piezo UST. The basic pickup sounded so bad, I went looking for a solution. Tried the Aura Spectrum Preamp/DI. Was not impressed at all. Very artificial sounding. I liked the guitar acoustically, but couldn't stand how it sounded amplified, so I ended up returning the Gibson and picking up a 416ce instead. I know some people complain about the ES, but I find it to be the best sounding, most feedback resistant system that I am aware of. The bonus is that it only comes in my favorite brand of guitar!