Dayton Audio ND65-4 2-1/2″ Aluminum Cone Full-Range Neo Driver 4Ohm

Dayton Audio ND65-4 2-1/2″ Aluminum Cone Full-Range Neo Driver 4Ohm Overview:Dayton Audio’s compact ND65-4 aluminum cone full-range driver demonstrates the latest advances in high-excursion design processes. When teamed up with the matching ND series passive radiators this driver can produce incredible full sound from compact enclosures. Key Features:Rubber-edged aluminum alloy coneLarge excursion capabilitySelf-shielded Neo-Balanced motor structure4-layer underhung voice coil with polyimide formerHigh power handling Product Details:BrandDayton AudioModelND65-4Unit of MeasureEachWeight0.4 Product Specification:Nominal Diameter2-1/2″Power Handling (RMS)15 WattsPower Handling (MAX)30 WattsSensitivity83dB 2.83V/1mVoice Coil Diameter0.75″Frequency Response85 to 20,000HzImpedance4Ω Thiele  Small Parameters:Resonant Frequency (Fs)89.5HzDC Resistance (Re)3.5ΩVoice Coil Inductance (Le)0.44mHMechanical Q (Qms)5.56Electromagnetic Q (Qes)0.68Total Q (Qts)0.61Compliance Equivalent Volume (Vas)0.03ft³Mechanical Compliance of Suspension (Cms)1.26mm/NBL Product (BL)2.68T·mDiaphragm Mass Inc. Airload (Mms)2.5gMaximum Linear Excursion (Xmax)3.5mmSurface Area of Cone (Sd)15.6cm² Materials of Construction:Cone MaterialAluminumSurround MaterialRubberVoice Coil Wire MaterialCopperVoice Coil FormerKapton® / PolyimideBasket / Frame MaterialSteelMagnet MaterialNeodymium Mounting Information:Overall Outside Diameter2.52″Baffle Cutout Diameter2.05″Depth1.89″ # Mounting Holes4 Dayton Audio ND65-4 Graphs/FRD/ZMA Data FileDayton Audio ND65-4 Specifications