Hi everyone. As stated in the title I am new to this forum. My question may have been able to be answered by searching, I tried, but could not find exactly what I was looking for. Anyway, I recently bought the new Alpine Type R 10". SWR-10D4. These new R's are rated at 1000 RMS. My question is about over or under powering. I have found many threads on this but could not really decide what would be best for this sub. I could either be slightly conservative at 900 RMS or over at 1200RMS. I know the older R's were under rated. I don't know about these new ones. IMO the 900 should be fine and safe, but if it is better to overpower to the 1200, please let me know. Sorry this wasn't the shortest of posts. Thanks in advanced for your help!