The PSB Alpha P3 is a small two-way bookshelf speaker that brings hifi pedigree to your stereo or home theatre system to fill the room with crystal-clear sound. Featuring a custom 4” (102mm) woofer and aluminium dome tweeter that uses a waveguide to perfectly match the low and high frequencies for a smooth transition, the P3 delivers natural sound, at an affordable price. It also leverages specially textured woofer cones and a unique port tube design to add back energy and extend the bass frequencies even lower without any distortion. Our price is for a pair of speakers and includes shipping to most places in Canada. Frequency Response On Axis 0 Degree +/- 3dB - 57Hz-21kHz On Axis 0 Degree +/- 1.5dB - 67Hz-20kHz Off Axis 30 Degrees +/- 3dB - 67Hz-10kHz Low Frequency Cut Off (-10dB) - 43Hz Sensitivity Anechoic Chamber - 85dB Typical Listening Room - 87dB Impedance Nominal - 8 Ohms Minimum - 4 Ohms Input Power Recommended - 10-80W Program - 60W Drivers 1x 3/4" Black Anodized Aluminum Dome Tweeter with Ferrofluid Neodymium Magnet Tweeter 1x 4" Textured Polypropylene Cone with Rubber Surround Woofer Crossover 3000Hz, L4 Speaker Type Tuned Port Bass Reflex 1 3/8" Rear Port Construction Cabinet Sleeve - 1/2" (15mm) MDF Baffle Front - 1" (25.4mm) MDF Baffle Rear - 1/2" (15mm) MDF Grille Face - Black Steel Micro Perf with Magnetic Attachment Threaded Insert - 1/4" - Threaded Insert Details 5-Way Gold-Plated Binding Posts Clear Bumpers Fear Facing Port Dimensions 5 1/8" x 8 5/8" x 6 7/8" (130mm x 220mm x 174mm) Net Weight - Each 4.9lbs (2.2kg) Shipping Weight - Pair 11.45lbs (5.2kg)