Quote from: QReuCk on July 31, 2013, 09:41:24 AMi have a fender its has a pick up has battery it has eq bass trebi forget the other it is acoustic guitar steel strings not nylon
In my experience, you can pretty well use an electric guitar amp for amplifying an accoustic, but you'll have to deal with some issues:
1° Electric guitar amps are designed to reproduce well frequencies up to 6KHz. Higher frequencies are highly disregarded in this context. For a metal stringed accoustic, you need up to 12 KHz if you want to hear all the complexity of the harmonics. That's more caused by the speakers than the amp itself, but amps are designed knowing that they won't have to reproduce frequencies higher than 6KHz, and some designer like to purposedly restrain the range in order to give an easier job for the amp. If you have a nylon stringed accoustic, you will barely hear this limitation.
2° Usually, Accoustic amps have a pretty usefull feature to control feedback and prevent it being turned into larsen. These are phase inversion switches or specific narrow Q band-cut filters to cut the larsen frequency. You won't have that on an electric guitar amp. Knowing how to position yourself and your guitar in relation to the speakers and/or inserting an multiband EQ (or parametric if you find one) in your chain can go a long way to not need these features, but these are workarounds.
I personaly use my Peavey Envoy110 when playing my nylon and I am very happy with it. It sure isn't a perfect solution, but it's what I've been using for a few years now and I even had compliments about how "real" it sounded.
I had one of my friend playing through it with is folk electro accoustic and found it didn't sound bad at all. Maybe not all of the chiming top end, but still good enough to not be ashamed playing for an audiance.
You have to remember that a lot of commercially available SS amps for electric guitar are just a power amp and a very transparent preamp (at least for their clean chanels).
But if you want to build something, listen to other guys here, they are super knowledgeable, which I am not. I just like lurking here to learn one thing or two from them and share my very little experience when I think I can help.