Interesting comments here for sure. I'm always willing to listen to others'
take on a subject like this. Because the technology keeps changing. So you
can make up your mind based on the old Barcus-Berry acoustic guitar pickup
and then have an obsolete opinion.
With an acoustic guitar, it's difficult even for me to consider the amp as a part of the guitar's tone.
Acoustics are supposed to supply the tone IMHO... based on vibrating (throbbing) wood. *grins
The amp or the P.A. is just supposed to make it loud. A high quality microphone will pick up the sound
made by the strings and the guitar top through the air, and there's a purity to that. Many acoustic players
will NOT give that up. I will, because I like to move around and I don't want my guitar's "presence' to
rise and fall when I move. A player who sits to perform, like a classical guy, could set up a couple of
condenser mics and have killer tone and plenty of presence. But not me...
With an electric guitar, it's all about (animal) magnetism... so the amp is an important part
of the output, otherwise why would we have a room here that goes to 11? I think that the question
of whether to mic the amp or to let the sound guys have the signal by cable comes back to the
quality of personnel on the board.
And I certainly have some experience with that. We don't always get good sound, and have learned a few ways
to get around it when something's just not right, and communications aren't getting results. For me, plugging
in my guitar lets me make the sound man's job easy. My rig doesn't feed back, or hum, I step on that tuner and
I'm out of the mix, so they can set my levels and forget them. The signal that I send to the board is one they can
usually mix. And that's the point of that.
The idea of whether to mic an amp or go direct is another can of worms to open and peer inside. EW!
I find myself agreeing with what's been said here by others. If the venue has a good PA and knowledgable crew
to run it, then mixing from a central sound board is best IMHO... Just let the guys do their job.
If the PA is questionable, and the sound man's brother in law is filling in for him, and talkin' trash to the chicks
and drinking beer, then you're on yer own.... and we've played too many gigs like that.