The Custom Installer’s Smarter Choice. The CI PRO series is Crafted in Canada and takes performance to the next level with patented technology, step-up components, and hallmark Paradigm sound quality, plus a new bezel-free micro-perf grille with an incredibly discreet aesthetic. Innovative Technology makes the Difference. X-PAL™ tweeter with exclusive Perforated Phase-Aligning (PPA™) Tweeter Lens that protects the delicate pure-aluminum tweeter dome and acts as the Phase Plug, blocking out-of-phase frequencies for smoother, extended high frequencies with incredible detail and higher output. Our tweeter designs are cooled by the original ultra-stable Ferrofluid, made exclusively by Ferrotec. Ferrofluid is a colloidal suspension of magnetic nano particles in a liquid carrier with low volatility and high thermal stability. Superior Mineral-Filled Co-Polymer Polypropylene Bass/Midrage Cones Oversized computer-optimized ferrite magnets and high-power motor structures deliver detailed midrange performance with clean, extended bass. Even movie dialog is incredibly clean and clear. Paradigm’s patented Active Ridge Technology (ART™) surrounds, made in-house and overmolded directly onto each cone, achieve greater excursion for a 3dB gain in distortion-free output (50% greater) compared to drivers with standard surrounds. Crafted from audiophile-grade injection-molded thermoplastic elastomer, ART™ surrounds are more durable and reliable, for a lifetime of superior sound.