Just a head unit question

[FirebirdSlickG94]

Hello,

I currently have a Pioneer DEH-835r which has 40x4 watts head unit on my system. My little cousin dropped my face plate and cracked it, also the thing has been acting funny. Anyways I found a really good deal on a Pioneer DEX-P78 to replace it and purchased that (still waiting for it's arrival) After researching the head unit a little more, I see that the wattage per channel isn't listed on the DEX-P78, instead it says Q-sound 4 volt preamps. I have a 200 w kenwood amp powering my speakers and a 400w amp powering my 12" kenwood woofer. I was just curious how much of a sound drop I can expect since I guess the head unit doesn't have a chip in it...or am I wrong? Can someone shed some light...I'm not the brightest car audio person :)

[ February 02, 2002: Message edited by: FirebirdSlickG94 ]</p>

[FirebirdSlickG94]

Anybody?

[OneQuickV6]

If you already have amps powering every speaker in the car, the sound will not change much at all if any. Am I getting that right, that you aren't using deck power? If not, your amps haven't changed, they will push tthose speakers the same. Now if you moved from a 2.5V output to that 4V output, you'll hear improvements. Most decks that say 4V really give about 2.7V.

[FirebirdSlickG94]

Thanks for the reply. Yeah I already have my head unit running through the amps. I was just concerned that since the one I currently have puts out 40 watts on it's own, the new one is passive I believe it just has 4v outs. So in other words I'm not really using the 40 watts right now.