Amp for speakers, will it help? Options

[funnyboy117]

I'm just wondering if an amp will help keep the distortion of my speakers down. I have Pioneer TS-A1680R, 4 of them. They handle 2-50 watts RMS and 220 peak ( I don't know if that number is for both in the pair, or each).

Right now I'm running them off of the built-in deck amp, which is sending out 50x4 watts peak, 22 rms. I also have 2 subs in the back, which don't distort before the speakers do, so I'm not worried about that for now. In fact, I haven't had them distort yet. But the question is, should I get a third amp just for the speakers, to send them up to their 50 watts RMS? Will that help with the slight distortion I'm getting when I turn everything up too loud, or will it simply increase sound quality a little at the lower levels?

I don't wanna waste a couple hundred bucks getting an amp that won't solve my problem, so thanks for any ideas you guys have.