Real Instrument / not very strong signal?

Why is it when I try to record my acoustic guitar or bass into Garage
Band...the signal that I have is not very strong at all...it just barely
lights the recording led's?? I am going through a MAudio Auattro.

Should I use a better 'interface'? Or is it that at all?

I eventually want to hook up a Microphone, but I think that may be
asking too much.

I don't think Garage BAnd has the ability to increase the signal strength,
only what's already recorded.

Help please.

Thanks

Vern

Sorry if I'm posting this in the wrong thread...I'm new here.

Open System Preferences, click on the "Sound" tab. Then click on "Input". Then choose "Line in".

Check to make sure your input volume is turned up.

Did you mean the M-audio Quattro? If so it has no pre-amps, get a cheap pre-amp and hook that up to the Quattro, and then take your guitar and hook it up to the pre-amp.