i have what you're lookign for. a set of 4" PSD210's and a 6.5" set of QSD216's. each set was run on an orion XTR100 and XTR200 respectively and sounded amazing. i'd still be keeping this setup if my new acura had the room for the 4", but alas, it doesn't. i paid over $300 for the PSD's and over $600 for the QSD's years ago when i first purchased them. they sat for 3 years until i installed them in my blazer, where they played for about 2.5 years without any faults. both of these sets were built BEFORE the DEI take over. shoot me an offer, i can provide pics.