Amplifying Acoustic Guitars
By Mark Hanson
February, 2004
I continue to receive questions about amplifying acoustic guitars.
Since
there are so many possible combinations of pickups, microphones
and
amplifiers, I can't pretend to know them all. But I will share
my
experiences and current preferences.
When I play very small and quiet venues I simply play acoustically.
I
cut my acoustic teeth in the late '60s and early '70s, when good
acoustic amplification consisted of a high-quality microphone through
a
PA system. Players needed to project back then! Out of sheer necessity,
and at the insistence of several good instructors I had, I learned
to
use the entire dynamic range of the guitar (which really isn't
very
much), and to create good tone with no amplification. I still record
using only good microphones. No direct signal.
When amplification is necessary in a very small venue, I currently
use a
Sunrise pickup and an AER 60W acoustic amp. I get a very nice sound
with
that simple setup on my Collings mahogany SJ. The AER is compact,
lightweight and powerful. It doesn't color the tone at all, which
may
not be what you want!
When I am in a bigger venue with a P.A. system, I use the Sunrise
through a direct box. I own a Sunrise preamp, and a Baggs Para
Acoustic
D.I. I use one of those two if I am playing in a venue that uses
a sound
system. The Baggs has EQ and volume controls, while the Sunrise
has no
controls. Recently I experimented with the Sunrise through a Demeter
preamp, which is the setup that Lyle Lovett has used for years.
The
result was a very nice, warm sound.
When I am playing through a P.A., in addition to the pickup system
I aim
a good-quality microphone at the 12th fret of the guitar. There
has been
some discussion about phase cancellation when you combine two signals,
but I have never noticed a problem in my performances.
I prefer a good condenser mike, but, in a pinch, a simple Shure
SM-58
works nicely. If a sound person points an SM-57 (the one they use
to
mike guitar amps) at your acoustic guitar, insist on an SM-58 instead.
The 58 has a warmer midrange. If you use a combination of mike
and
pickup, I suggest you try rolling off the treble from the pickup
signal,
and rolling off the bass from the mike.
There are many good acoustic amplifiers on the market. What you
can
afford will have an effect on your choice. For many years I used
a
slant-faced Crate. It did very nicely for small-venue gigs, but
colored
the tone more than the AER does. Tommy Emmanuel travels with the
battery-operated AER amp. I have several friends who swear by Ultrasound
amplifiers, and others who continue to use Crate. You will have
to
experiment with several to make an informed decision. Please be
aware
that some amps simply won't work well with certain pickup systems.
You
need to find a combination that suits you.
Like acoustic amps, good pickups are in great supply, also. My
friend
K.C. Wait at Pioneer Music in Portland, Oregon, loves the K&K
pickup
system. At the recent NAMM show I saw the new M1 soundhole magnetic
pickup from Baggs. In addition to sensing the vibrating strings,
this
pickup purportedly senses the vibrations of the top of the guitar.
That's a cool concept, but the show was so noisy you couldn't tell
how
well it worked! I have heard good things about it, though, and
plan to
experiment with one in a quiet venue. In the meantime, as I have
for 16
years, I continue to use a Sunrise because of its good tone and
ease of
use.
So, if you are in the market for upgrading or adding an amplification
system to your sound, the first thing I suggest is that you take
your
time. Experiment with several combinations of systems at your local
music retailers so that you can make an educated purchase.
One last thought: Remember that mostly the sound that comes from
your
guitar is created by your hands and your brain. A good player can
make a
mediocre guitar sound pretty good, so keep practicing!
Copyright © 2004 Accent On Music and Mark D. Hanson
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