After searching for a few hours last night and this morning, I couldn't find one instance of a keyboard player using this system. So I called Fishman Transducers directly up in Massachusetts. I spoke to a guy names Erik in their technical support. His comments basically distill down to the following:
1) It was designed/built to be a guitar amp system...Not a keyboard, bass, etc. system
2) He DOES however know of performers who do play non guitar instruments through it, and are very happy with it.
3) In his opinion, a keyboard player doing straight piano...no drums, bass, horns, etc,. would probably find this unit to be very good.
4) He acknowledged very candidly that the demands a full spectrum arranger would place upon it may leave some sonic zones lacking. Most likely the low end because the low ends on a T2 are quite different than on an acoustic guitar.
5) He also stressed that ideally a potential buyer would demo one using as close to the actual keyboard they would use with this and then evaluate it under those conditions.
...Generally, I thought the guy to be pretty frank about it not working ideally for our applications.
The alleged original developer, has his own "version" scheduled for release early in January 09. Its called a bagamp and would retail from around $500...
http://www.collinsamerica.com/page2/page2.html I have emailed him directly this morning and asked if his product would be suitable for my use. I'll report back his reply...
This doesn't look like a promising way to go, but we'll see...
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Bill in Dayton