bump that m just get the type S, but if you can get more power then getthe type R, im not sayng you will not get good results using 300w for the SWR12"but if you get the new R's give em no less than 500W, you will be happy with a type S ad 300W, i wouldnt rccomend the old R's , to many issues to deal with , for one the Gay surround comes apart after a time of beat down, and no i dont mean abuse to the sub.....TYPE S! besides the new S looks sikk chrome on my 12"inch dubs, i mean sub...