This is same driver that is sold as the Stryke HE and the Eclipse Ti, except this has a plain black cone rather than an aluminum surfaced one. It is a dual 4 ohm model. (run it as 2 or 8 ohms, or one amp channel to each coil at 4 ohms) The PR's are the TC Sounds HE models as well, and they cosmetically match the driver. They are provided with a generous supply of steel weighting washers for tuning the resonance of the system. All pieces are brand new, never been used or mounted. I only opened the box to take their picture! Here are the pictures... Price is $550 for all three pieces. I would prefer to sell them as a set, but email me if you are interested in only the driver or PRs. Also, and this is important... This driver and PR benefit greatly from a subsonic filter! I will sell you a "Phlood Philter" for a special price of $40 with this deal. This filter is designed specifically for this application. I have an unfinished website that describes the filter here... http://www.hoppehome.com/phloodphilter/index.htm I'll be happy to work with you on the design of the box, and I will set the bass boost and cutoff frequency of the filter for you before I ship it. An extra nicety... the driver comes with a birth sheet with it's T/S parameters as measures in LMS! This will make your simulations more precise. Here are the parameters if you would like to do some sims... Re = 6.2 Fs = 29.1 Zo (Zmax @ Fs) = 76.3 Ohms Sd = 0.072 SqM BL = 24.4 SPL @ 1W = 88.7 Qms = 5.23 Qes = 0.46 Qts = .43 Vas = 90.7 L Cms = 123.2 uM/N Mms = 242.9 g Mmd = 231.8 g You can contact me at email@example.com Thanks for looking!