HiVi DM-7500 3-Inch Fabric Dome Midrange Driver — Includes Install Kit

HiVi DM-7500 3 Inch fabric dome midrange — With Installation Kit. Large-format 3-inch dome midranges have a legendary status in high-end studio monitors, and the HiVi DM-7500 brings that directly to the DIY speaker builder. Pictures don't really do this driver justice. It has a massive 75mm (3-inch) hand-coated fabric dome that surprises you when you first see it. This oversized radiating dome bridges the gap between large woofers and tweeters, providing dynamic authority, wide off-axis dispersion, and an open soundstage completely free of the breakup nodes found in rigid woofer cones. The DM-7500 uses a true underhung motor geometry powered by a shielded double-magnet ferrite system and a huge 75mm voice coil wound with copper-clad aluminum wire (CCAW). This underhung layout gives a uniform drive force even during high-transient peaks within its 350 Hz to 6000 Hz operating range. Power handling is an impressive 60 watts RMS (120 watts max) with a high 92 dB sensitivity. Installation for builders is straightforward. The rear of the driver has an integrated, non-resonant damped sealed rear chamber. Because the rear assembly is completely sealed from the outside, the DM-7500 mounts directly to the main speaker baffle without requiring a separate internal airtight chamber to shield it from woofer backpressure. To save you a trip to the hardware store, we include a custom-matched Installation Kit at no extra charge so you can start building immediately. Each midrange you buy comes with a pre-cut gasket, two quick connect terminals, and six screws for free. Highlights Oversized 75mm Treated Textile Dome: Delivers substantial acoustic surface area for dynamic, uncompressed vocal delivery with exceptionally smooth roll-off characteristics. Linear Underhung Motor System: Dual-magnet symmetrical motor structure (SMD) keeps motor suppresses harmonic distortion. Self-Contained Acoustic Cavity: Internal rear damping chamber allows direct baffle mounting with no internal box-in-a-box required. Complete Installation Kit Included: Ships with the exact matching mounting screws and quick-connect wire terminals needed to start your build immediately. HiVi DM-7500 Specifications Specification Value Brand HiVi Model DM-7500 Nominal Diameter 3 Inch (75mm) Dome Material Textile Impedance 5 Ohm Power Handling (RMS) 60 watts Power Handling (MAX) 120 watts Sensitivity 94dB (2.83v/1m) Frequency Response 350 - 6,000 Hz Outside Diameter 156mm (6.14 inches) Cutout Diameter 121mm (4.76 inches) Mounting Depth 60mm (2.36 inches) Weight 1.95 pounds Thiele-Small Parameters Parameter Value Resonant Frequency (Fs) 300 Hz DC Resistance (Re) 4.1 Ω