OK I installed the Pinwoofer superkit today from PinWoofer.com which has amps on the new bb speakers and new cab speaker and it seriously makes a HUGE difference in sound for this pin like others who have put the kit in have mentioned.
Such a huge difference from stock and from the PP kit I had in there. Seriously night and day.
I had the PP kit and the highs and vocals were muffled as others have experienced. I was pretty disappointed actually. I think its because there is just not enough power supplied to the speakers to bring out those highs, at least this was my experience. Drove me nuts and found myself playing with headphones more just to hear the clarity.
But after installing the superkit it made it soooo much more obvious the highs that I was missing before.
It's loud AND clear and there is no need for an external sub...you can really go crazy on the supplied cab woofer. I didn't even turn that amp up very high at all because things started shaking quickly and got super bassy so I had to tone it down!
But you can certainly crank up this system WAY high, it's awesome and such an improvement to what's out there.
For alot of my pins I don't care as much about super high sound quality but for this pin (and IMDN) I wanted clarity while playing no matter how high the volume was turned up.
Highly recommended for those that want much better and clearer sound.
Dan from Pinwoofer is a super nice guy too that helped me with sound problems even outside the scope of his product! Great guy and will see you through the install with any help you need. Can't say enough about how much he backs up his kits and the support he gives.
Just wanted to throw this out for those thinking of upgrading their sound...it was completely worth it!