http://www.jbl.com/EN-US/Products/Pages/ProductDetails.aspx?PID=660GTI&accT=1&tsT=0&ovT=1
6 1/2" (160mm) 2-Way Competition Component Speaker System
At JBL, we’ve had more practice than any other speaker company at eliminating distortion, and it shows. GTi competition speaker systems include the lowest-distortion woofers we’ve ever built. In a loudspeaker, distortion can be produced by the cone, the motor, the suspension and even the movement of air through the speaker’s assembly. In designing the 660GTi woofers, JBL engineers have left no stone unturned.
$750 PLUS SHIPPING..... The weight on this is about 25 pounds