I would lean towards the Type-R in the right box.. i have had experience w/ diamonds and the alpines, and the diamond just can't make up for the lost displacement.
The rms for those alpine type R's is only 300 watts rms and 1000w watts peak. I would just get a 600 watt rms amp i mean 1500 i would think would be to much just my opinon though //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
The Type R's in the right box should handle 600+ watts RMS easy. I agree, the Type R's should be louder, I've heard them both and they M6's are mostly just a SQ only sub.
hmm i dont know hes buying the amp so if he blows it, its his fault, as for the type R being louder.. ****it any other subs that you guys reccomend, but is withing a price range of 200 a piece? or 250? that would be louder then the Type R's
In the "right" box, both of those subs would slam, but if they were both in a recommanded sealed box..I'd say the type R as well, but if you want your Diamonds to have awsome SQ and be louder, go with an ABC box for sure!