What's the deal with acoustic guitar amps? Assuming that I had all the EQ and notch filtering that I wanted from my preamp, is there any advantage in using an amp marketed for acoustic guitar instead of a keyboard amp or going straight to PA?
Among other things, I'm specifically curious about the odd speaker configurations that some of these have, like an 8" and a 2" or 4x5". Does this translate guitar better, or help with feedback or something? Thanks.
Check my post above on Joro's "Parker Fly" thread. As far as notch control, I get it from my Fishman stereo blender. When I get feedback on stage, I'd much rather just reach down to the guitar and dial it out than be running to my amp. My choice for a really good acoustic guitar amp?- Fender PD150 Passport, intended as a portable PA.-Richie
An acoustic amp on stage gives you control over your volume on stage without having to get someone to turn up the monitors. Also having the guitar sound coming from a particular place (an acoustic amp) rather than the monitor can help you hear it better on stage, assuming your not on a 10,000 seat arena stage.
Acoustic guitar amps are tuned for use with acoustic guitars and especially those with piezo pickups. They often have a post/pre eq switchable balanced DI which is quite handy to let you fiddle with the eq on stage without upsetting your front of house sound engineer. They may even have an XLR input which could be handy. I don't think many keyboard amps have these features. Also keyboard amps have a fairly flat frequency response which may not be ideal for an acoustic guitar unless your pre-amp really has a good amount of tonal control and you have a very natural sounding pickup system in your guitar.