Actually i have lol, been doing this since 06. Hmmm. let me recall, 2 12 sdc 2.5's, 2 12' hdc3's, 2 15 sdc 2.5's, 2 15 hdc3's, 4 18 hdc3's, and now ive got 8 hds210's which if it sounds good will be 8 hdc3 10's. I know what each sub will take and pretty much what numbers they will do. takes about 2500 clamped to bottom out an hdc3 on music and about 1500 to heat the coils up if u demo it a long time daily, sdc's will take 1500 mechanically just fine but the coils can handle about 900 if you let them cool down between songs, hdc3's are louder if you are running over 800 rms per sub but thats a 2.5 inch coil on the sdc, the new hds3's have a 3" coil so i imagine the hdc3 will only walk away on over rated power, which he wont have. from my experience the smaller subs will take more abuse than the single hdc3 on that power. plus itll be maxed out the whole time and possibly rip the spiders on very low songs on that power. ive had the coil come undone on only 1600rms clipped on an hdc3.