Hi,I know this might be a bit late but,Buy them as many as you can afford,I've had mine for 3yrs ,running with Crown XTi 4000 ,Xover @ 100Hz. They easily outperform or are as good as any high cost sub out there,let alone the price range. Yamaha club,Yorkville 118's,Cerwin Vega,JBL,EV's .You name...