There are two ways to approach amplifying an acoustic guitar: trying to duplicate the natural sound, only louder, and NOT trying to sound naturalistic at all. This post is about the second approach.
I love playing acoustic through an electric guitar amp (as opposed to a dedicated acoustic amp). True, the tubes and speakers amputate all high frequencies. But if you think of the instrument not as an acoustic guitar, but an idiosyncratic electric variant, it opens up amazing possibilities.
More often than not, I prefer to play acoustic gigs that way. I did a fun benefit show last year playing rock and R&B covers with a band consisting of Flea, Tracy Chapman, and drummer Dawn Richardson. Tracy had a beautiful, ultra-hi-fi acoustic tone, and the ratty, rumbling sound of my acoustic through a small combo was — well, let’s just say it was a very strong contrast.
Admittedly, relatively few players exploit this technique. One notable exception is Daniel Lanois. He’s best known as a producer (U2, Peter Gabriel, Bob Dylan, etc.), but he’s also a phenomenal player who does amazing things with an acoustic guitar, an inexpensive magnetic soundhole mic, and small vintage Fender amps. I’ve watched him play up-close a few times, and he’s incredibly adept at conjuring a variety of tones and controlled feedback from this setup.
It’s definitely a white-knuckle playing experience. You have to listen carefully and nix unwanted feedback with quick damping technique. But it can be so expressive!
I’ll talk more about the technique in a bit. But first, check out this short video demo featuring distortion and other stompbox effects, controlled (and not-so-controlled) feedback, and a lot of awkward twisting and turning as I grapple with the tone: