Deck! or no deck. Need advice on.

Here is the scoupe. I have a shitty deck in my 1999 Honda Civic

DEH-415 - Old Pioneer Deck probly has .5volts preouts to 2volts max/



Off that im running a Pheonix Gold 200.3 Titinum Amp Running 500x2 RMS



to 2 15inch Tantrum SUbs. in a custom sealed box.


so i was looking at getting a

Clarion 825 ? 4 Volts preouts. 24 Bit Dual Convertors...
better sound quality im sure..

would that make a big diffence in sub quality also it has sub out etc...


please help soon im byuing it tomorow if i get enough anwers.