The musicians will feel comfortable playing acoustic guitar and will be met all the needs of tones, using Acoustic Instrument Processor, surely it is interesting and one of Acoustic Instrument Processor products I know are from the boss, types name is Boss AD-3 and Boss AD-8, both are very interesting and definitely has a different characteristic.
Boss AD-3
Developed for stage and studio use, the AD-3 gives acoustic-electric guitarists a warmer, richer sound thanks to its Tone shaping controls specially tailored for acoustic-electric guitars, high-quality Reverb and chorus, as well as a built-in Feedback eliminator. Quite simply, this compact pedal is an acoustic musician's best friend.
Boss AD-8
The BOSS AD-8 Acoustic Guitar Processor uses COSM modeling technology to transform the piezo pickup sound of an ordinary acoustic into six high-end acoustic guitars. The versatile AD-8 can also simulate the warm sound created by miking the guitar's neck and body -a world's first!
For more details can be seen HERE