15" NB5 Series Subwoofer by Prodigy Audio™

The NB5 series (10", 12", & 15”) is a robust line up of 1000--1500 watt handling subwoofers. Starting with the motor design, we spent a lot of time optimizing the design to incorporate a large inner pole, upper and lower, Faraday shorting ring which helps to reduce any distortion caused by inductance throughout the movement range of the cone. We chose a 2.75” diameter coil that has a very long winding width, with the wire being made of flat aluminum. Overall, they have 27mm of excursion one way at 70% BL and have a 40mm of X-mech forward and 50mm downward x-mech clearance before soft parts crash into hard parts. The motor has 280 ounces of ferrite rings and utilizes a vented pole design with coil gap radial vents for moving heat quickly out of the gap. Mated to the motor is a heavy duty cast aluminum frame that serves as an excellent heat exchanger. As the motor gets hotter the mass of aluminum helps to dissipate the overall heat. Nomex spiders with heavy stitched in tinsel leads connect with the competition grade treated paper cone, and the heavy-duty foam surround that complete the make-up of this woofer. Features: 27mm of x-max one way at 70% BL Product RMS Power 1500 watts Available Coil Options: D2/D4 Vented magnetic gap Black Aluminum 2.75” voice coil for superior power handling High Temperature flat aluminum voice coil wire Large Aluminum ID Faraday Ring Chrome 4awg Push Terminals Stitched on Double Tinsel Leads Heavy Cast aluminum frame Extreme duty Nomex spiders Specifications: NB5-15d2 NB5-15d4 RE 3.44 6.088 FS 35.6 34.93 VAS 43.548 47.197 Qes 0.534 0.593 Qms 5.283 5.595 Qts 0.485 0.536 BL 27.33 30.789 Mms (g) 422.32 417.888 Cms 41.623 44.651