What's the basic difference between normal amps and "acous..

Archived from groups: rec.audio.pro (More info?)

i.e., amps made for acoustic guitars, the amps that are usually brown and
tan instead of black and silver. Are they worth the extra money?


--

-Jonathan

JUST UPDATED (6-21-04) with TWO new songs!
Go to http://www.guestroomproject.com/ to
hear some music from my upcoming solo album,
the Guestroom Project. I play all the instruments.

Archived from groups: rec.audio.pro (More info?)

"Rob Reedijk" <reedijk@hera.med.utoronto.ca> wrote in message
news:ce6058$q1b$1@news1.chem.utoronto.ca...

> They other main difference, I believe is that they probably have a more
> true frequency response. Similar to a keyboard amp. Electric guitar
> amps tend to have highly shaped responses.

Other differences:

Typically an acoustic amp (an oxymoron, but never mind) will have available
an XLR input for a microphone, and its 1/4" input will be extremely
high-impedance (say, 10Megs, rather than a typical guitar amp's 250k-1Meg).
Piezo pickups, in particular, prefer to operate into very high Z's.

An acoustic amp usually includes a tunable notch filter for ameliorating
feedback.

Peace,
Paul

Archived from groups: rec.audio.pro (More info?)

Paul Stamler wrote:

> An acoustic amp usually includes a tunable notch filter for ameliorating
> feedback.


Thanks for that word, Paul.

Archived from groups: rec.audio.pro (More info?)

Well, I just bought an acoustic electric Taylor and a Behringer
acoustic amp, and I've been playing both quite a bit. What we would
like is for the amp to give us is the sound of an acoustic guitar with
a good microphone 2" away from the soundhole, that is being amplified
by a good PA system. But instead of using a microphone, which is hard
to hold the guitar next to, use the pickups in the guitar. And instead
of an expensive multi component PA system, use one box.

The pickups in an acoustic/electric guitar are not microphones. They
are different and usually are internal to the guitar, as opposed to
external pickups on an electric guitar. They pick up the physical
vibration of the strings and wood in a guitar, not the actual sound.
Sometimes there is an actual microphone as well.

An acoustic amp is essentially a mixer, amplifier and speaker (PA)
system in one unit. It may also have reverb, delay and other
"effects". It's amplifier is not designed to "color" the signal (as
opposed to electric guitar amps), but to reproduce it faithfully, much
like a PA. In fact you can usually plug a microphone into an acoustic
amp, and it will sound pretty good.

Biggest problem is feedback. But you probably have less feedback
problems than if you used a microphone. Due to feedback problems, you
usually have to have some filters to filter out the offending
frequency.

As in all things, the better sound you get, the more money ya have to
pay.

"MM" <mbmsv@yahoo.com> wrote in message news:<2mnj9kFp0jrkU1@uni-berlin.de>...
> "£ Î Z @ R Ð" <jattea@adelphia.net> wrote in message
> news:JOmdnYHwop4y45vcRVn-pg@adelphia.com...
> >
> >
> > i.e., amps made for acoustic guitars, the amps that are usually brown and
> > tan instead of black and silver. Are they worth the extra money?
> >
>
> Try this link:
>
> http://www.google.ca/groups?hl=en& [...] 26rnum%3D1
>
>
> /Mikhail