looking for a plugin especially designed to warm up acoustic electric piezo driven tone i.e. like the Ovation guitars and specifically something like the Al Dimeola signature model. The genre would be world acoustic fusion type stuff.
On the hardware side the Avalon units are reputed to do as much.
ummm...
1) Nebula (has some presets based around Avalon)
2) PSP Vintage Warmer 2
3) UAD !
4) quality analog model eq or compressor (Sonalksis, Kjaerhus, Voxengo) that won't destroy audio.