HiVi M4N 4-Inch Aluminum Midrange Driver — Includes Install Kit

HiVi M4N 4-Inch Midrange — With Installation Kit. While often compared to the popular B4N, the HiVi M4N serves a different engineering purpose. This 4-inch driver delivers the high stiffness and low mass needed for clean transient attack and great midrange reproduction. The M4N was designed for specific enclosure types. With a resonant frequency (Fs) of 69 Hz and a high total Q (Qts 1.08), this driver is perfect for sealed enclosures, or as a midrange driver in a 3-way speaker. In a small sealed chamber, it delivers a smooth, controlled rolloff without the peaky port behavior common to high-Q woofers. The anodized aluminum-magnesium alloy cone has a unique copper/rose-gold finish that's a bit lighter than the B4N woofer. The overall look really catches your eye and blends great with wood finishes or painted cabinets. The cone is paired with a durable rubber surround and a damped spider to control edge resonances. It has a rigid stamped steel frame and a fully shielded ferrite magnet system, eliminating stray magnetic fields in tight AV or desktop setups. 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 M4N woofer you buy comes with a pre-cut gasket, two quick connect terminals, and mounting screws for free. Highlights Rigid Metal Alloy Diaphragm: Lightweight aluminum-magnesium cone provides excellent response through the midrange with a standout copper/rose-gold look. Optimized for Sealed & Midrange Use: High Qts (1.08) and 69 Hz Fs eliminate the need for port tubes, excelling in small sealed enclosures or dedicated 3-way midrange sub-enclosures. Fully Shielded Motor Assembly: Ferrite magnet prevents magnetic leakage, making it safe for nearfield workstation setups and home theater center channels. Complete Installation Kit Included: Ships with the exact matching mounting screws and quick-connect wire terminals needed to start your build immediately. HiVi M4N Specifications Specification Value Brand HiVi Model M4N Nominal Diameter 4 Inches Cone Material Aluminum Impedance 8 Ohm Power Handling (RMS) 15 watts Power Handling (MAX) 30 watts Sensitivity 82dB (2.83v/1m) Frequency Response 69 - 8000 Hz Outside Diameter 116.5mm (4.56 inches) Cutout Diameter 95mm (3.75 inches) Mounting Depth 63mm (2.5 inches) Weight 1.3 pounds Thiele-Small Parameters Parameter Value Resonant Frequency (Fs) 69 Hz DC Resistance (Re) 6.5 Ω Compliance Eq. Volume (Vas) 0.15ft³ Mechanical Q (Qms) 5.39 Electrical Q (Qes) 1.35 Total Q (Qts) 1.08 BL Product (BL) 3.1 T·m Maximum Linear Excursion (Xmax) 3 mm Effective Cone Area (Sd) 53 cm²