#1
Ive been going out of my boss rc 30 looper into the guitar amp, and sometimes with the mic plugged into the looper using the xlr input. I would have thought this was fine but I've heard using a bass into a guitar amp was bad for the speakers, so I just wanted to check that there was no known issues (apart from lack of vocal clarity due to it not being specced for vocals) with using a guitar amp for singing?

1. Is it ok to sing through the guitar amp, with or without accompanying guitar.

2. Is it ok to use a -1 octave shift (from my me 50 multi fx pedal) through the guitar amp?

lodgi
#2
I think its harmless but it doesnt sound very good. Guitar amp speakers are usually specifically designed for guitar. It'll sound thin and tinny. You can even use a bass if you're not cranking it.
Powered speakers can be hadpretty cheap, I'd suggest that.
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#3
No problem in plugging in a mic if you don't distort the thing.
If you do distort the sound you get all kinds of unwanted feedback.
It's 0.k. to put a bass guitar in there, too, guitar aimed speakers usually are pretty damn though.
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#4
I'd imagine it's fairly safe, since vocals are mostly midrange and highs, which is similar to a guitar... as long as you're not a super low baritone/bass, you're probably okay.

Why you'd want to though, I have no idea. It's going to sound horrible and you'll have to crank the amp up pretty high, since your amp doesn't have a mic preamp in it and isn't meant to take such low level sources.
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#5
No problem, go for it. Guitar and the human voice share essentially the same frequency range from 80-1100hz and great guitar speakers like EVM 12L are also used in PA applications. In our very early gig days we couldn't afford a real PA so we ran through a rented Fender Twin for vocals. It worked fine, we got paid, onward and upward.
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#6
Just don't crank the bass up and keep it out of distortion.

I played bass, keyboard, and even used a guitar amp as a small karaoke box onetime. Has not caught fire yet! I found that the best low cost alternative if you can't use a proper PA system is to buy an old 200+ watt home stereo receiver from someone for like 30 bucks and hook a mixer to it with some cheap home stereo speakers. I once found a pair of cheap 15" technics 3 way tower speakers and a home stereo receiver for 60 bucks total and it gets loud and sounds good enough for a very shady rehearsal space.
Last edited by cheesefries at Feb 19, 2014,
#7
Quote by MatrixClaw
I'd imagine it's fairly safe, since vocals are mostly midrange and highs, which is similar to a guitar... as long as you're not a super low baritone/bass, you're probably okay.

Why you'd want to though, I have no idea. It's going to sound horrible and you'll have to crank the amp up pretty high, since your amp doesn't have a mic preamp in it and isn't meant to take such low level sources.


The reason is i'm using the loop (has an XLR input with a mic gain knob) pedal to create the different parts of songs and vocals is one of them. For instance last night, I layed down some vocals over the top of the loop pedals built in drum machine, then added a simple bass line using a -1 octave shifter then added the guitar bit. So I need to use the guitar amp for vocals.

Thanks for the answers, good to know I can carry on doing this.
#9
I have done it and it works good for jam and practice. Not the best sound but still very practical. Then there is a Fender PA100, 4 tube driven 100w channels that work good for most applications, oh, and it's damn cheap.

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#11
Quote by Perverockstar69
I have done it and it works good for jam and practice. Not the best sound but still very practical. Then there is a Fender PA100, 4 tube driven 100w channels that work good for most applications, oh, and it's damn cheap.
What a waste of a modder's dream. They're basically four Twins in one box. I'd love a PA100. The things I could do with one of those.
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