Yeah, I got an alpine headunit first, but the sound was really washed out, and because the new h/u was more powerful, there was A LOT of difference between volume settings, it was either quiet or loud.
So I bought the speakers to eliminated that issue, which it did. What was a good listening level at 10 is now perfect at 16 and allows for alot more control. With a little front fade on, the stock subs are now as they intended as a fill only, not crazy, although they can be if you change the fade/bass gain setting.
Made for a much clearer, crisper, more stylish sound.
To answer the question, yep, it made a hell of a difference, even with just Type S's.
$130 a set (x2) was pretty good, best money I've spent on the car thus far.
Cheers,
Aaron