[darkrider01]

Originally Posted by Mightygrasshopper

Cool - thanks! So no need for a sub! Cool.

With this amp, can it power a sub too or do I need a separate sub?

Finally, are recommending dynamat if I use the stock woofers for base but not need dynamat if I have a stealthbox or similar setup?

You can forego a sub if you're looking more for sound quality and less for teeth rattling bass. The woofers in the stock 6x9's have very good range and will do well with good power and some sound deadening.

Dynamat is never a bad idea. If you're looking for BMW-like performance, you're going to need to add Dynamat or BAM everywhere you can afford it. GM put very little sound deadening (almost none) in these cars, presumably to keep the weight down.

If you went with a stealthbox and it was your primary source of sub bass, then you could possibly get away without any dynamat. However, with the sub being in the rear of the trunk, you'd probably have to have it turned up to get any effect from it. Once you start pumping more bass in your trunk, rattles almost always show up. Hell, they will probably show up anyway. The rear deck is only slightly thicker than an aluminum can.