Alpine CDA-9815
10+ year member
CarAudio.com Elite
Alright I have 4 12" Alpine Type R's dual 4 ohm voice coils. I want to get more power to them, 500-600WRMS. Right now I have them powered by a RF 1501bd. I would like to just be able to get another one and do it that way but I was told then I could only run them at 4 ohms so that defeats adding another 1501bd, unless that person was mistaken. I don't really feel like spending $1000 to get a 2000-2400WRMS 2 ohm stable amp, would be cheaper just to spend the $550 on another 1501bd. Anyone have any suggestions on how to do this?