type x or type r

ok i am putting together my new system and am in a little bit of a bind. i am doing an all alpine system and am debating on one type x 12 or two type r 12s.  i already have my w505 on order along with type x components, a pdx1.1000, inprint tech for w505 and some other add ons, and still debating if i should put rear speaks in my car (1991 hatchback civic, rear seats are coming out also)  so am yet to order highs amp.  wither doing a 2.150 or a 4.150.  i am going for sq but still want nice spl at hand. 

so to sum up

2 alpine type rs or one type x (12s)

rear speaks? 

4 channel or two depends on above..

any input will be greatly appretiated.

two type r 1242d 40hms  or 122d-2ohms is 300 peak  if you have two

one type x is the same as two type rs so if you need to save space go with the x and if you want to save money go with the r

Well, I hope some of the experienced guys on here can confirm this comment.

As far as I know, while the type x is supposedly an amazing sub it is incredibly finiky. It requires a perfect box, the perfect power (lots and lots) and perfect conditions.  We have people come in every once and a while with a type x and they sound really muddy and disappointing.  The two type r's will be tiighter and more forgiving of their surroundings.  Also would not need to power them as heavily saving cost on amp as well as draw and strain on your electrical system.

Good luck with your project.

I got a type x SWX-1243D (12") running off of a PDX-1.1000... 0AWG from battery all the way through to the amp, about 12 feet in length...

Voltmeter at the sub records a drop of .3v on the heaviest hits.    SPL of my system is 119, which I'm a little dissapointed with, but its still an impressive system, and SQ wise, the type x is more precise than the type r especially when it comes to big frequency jumps, it sounds alot tighter moving from punchy hits every second beat to a deep boom on the fourth beat (common in rap songs)

But ill be honest, the type x is definately overpriced, look around before you decide, but if its the type x you want, then definately get it, you wont be dissapointed, I wasnt!

P.S. also, it definately craves more juice than my one PDX-1.1000 gives, I would look at maybe a 1.1200 JL amp or even up to a 1500 if you find a stable amp. Good Luck!