I just got the hd3 and niche audio 6000d currently waiting on my dumb alt and battery so only running 800rms to it and it gets pretty f'n loud for 800rms, ill be putting 3k on it soon so ill detail it more for you and dont worry pics are coming im at work ;( btw this is the best sub i ever owned, stiff as a mofo and heavy as a b!tch. the magnet on it was way way bigger then i thought.