Acoustic Guitar Amp
Jazz guitarists are an interesting bunch. We pine over exquisite and costly guitars. Wonderful, but so acoustically inefficient that to play in an ensemble with other musicians we often require the assistance of another instrument: an amplifier.
Understanding the sonic scope of your guitar and the music you choose to play is integral to defining the correct amplifier for your needs. Your guitar already knows what it wants…listen to it…best unplugged.
For this discussion, guitarists who seek an acoustic rendition of their instrument might chose to play an archtop fitted with a "floating" or "Johnny Smith" style magnetic pickup and set it up with round wound strings; or play a classical aka nylon-string guitar or a steel string flattop folk style instrument with a bridge mounted transducer; or some combination of any of these guitars possibly mixed with a microphone.
Guitarists who prefer playing in the acoustic tradition may want to audition full-range systems. Often fitted with multiple drivers, their broad frequency spectrum and inert cabinetry provide a neutral mirror of your instrument’s inherent voice.
Remember, this list is just a beginning and by no means exclusionary...you may find that your own search leads you toward a more focused "sonic window" frequency system, an acoustic bass amp or ? Improvising is okay, after all, this is JAZZ!