Stereo Integrity M350 Carbon | 3.5 Inch Midrange - Pair

Stereo Integrity M350 Carbon 3.5 Inch Carbon Fiber Dome Midrange | Sold as a Pair Carbon Fiber Dome 2 in Copper Voice Coil 4 mm One-Way Xmax 36 mm Mounting Depth 400 Hz to 5,000 Hz A Different Approach to a 3.5 Inch Midrange The M350 Carbon is a completely new 3.5 inch midrange built around an unusual idea: a full 2 inch diameter voice coil with the spider mounted inside the voice coil former. Putting the spider inside the coil gives it room for smooth, ample travel, and Stereo Integrity says the large coil increases thermal power handling dramatically compared with a conventional 3.5 inch design. It is also shallow. The M350 mounts in 36 mm, 13.5 mm less than the M3 Carbon, which opens up more mounting locations and makes installation easier. Engineering Highlights Full Carbon Fiber Dome The dome is the moving diaphragm, so Stereo Integrity made it from full carbon fiber for its strength to weight ratio. A custom tooled carrier joins the spider to the dome and keeps the coil, spider, dome, and surround in alignment. Underhung Neodymium Motor The new underhung neodymium cup motor increases motor strength for higher sensitivity and delivers 4 mm of one-way linear travel at 70 percent Bl, which Stereo Integrity says is 35 percent more than its predecessor. 2 Inch Copper Coil on Kapton The copper coil is wound on a lightweight Kapton former that eliminates eddy currents, with a copper pole sleeve and a solid aluminum Faraday ring at the magnet. Tidy Terminal Block A minimalist cast aluminum frame carries a terminal block with the voice coil leads soldered directly in place for easy speaker connection. Crossover Recommendation Stereo Integrity recommends using the M350 Carbon from 400 Hz to 5,000 Hz. The specification sheet lists a frequency response of 400 Hz to 20,000 Hz and a sealed volume of up to 0.25 cubic feet if you build a pod or back chamber. Upgrading from the M3 Carbon: Stereo Integrity designed the M350 as an easy swap for the M3 Carbon. Its published cutout is 74 mm and outer diameter 94 mm, compared with 72.5 mm and 94.4 mm for the M3 Carbon, so confirm the fit before you cut. Fitment Outer diameter: 94 mm. Cutout: 74 mm. Mounting depth: 36 mm. Motor diameter: 74 mm without boot. Mounting holes: 5. Baffle to top of surround: 7 mm. Minimum grille clearance: 4 mm. Sold as a pair. Authorized Stereo Integrity Dealer Audio Intensity is an authorized Stereo Integrity dealer, and we build enclosures around their drivers. Call 931-563-5151 and we will help you plan a front stage around the M350 Carbon.