This thread is kinda funny...
I have a 12" 2005 CVR in a 2.0 cf net ported box tuned to 34 hz running off of somewhere around 400 watts...
Its pretty **** loud in my trunk...
Granted I have never heard a type r, but I do see that a lot of members of this site are doing crazy things with them (however, it must be noted that these people hitting 14x dBs are doing it with a lot more wattage than im throwing my CVR)
But I am definitely going to pick up another CVR and run 2 12"s for half the price of buying a type r instead...