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

Dayton Audio
Part #290-204

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

Dayton Audio
Part #290-204  
Model: ND65-4
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 cone
  • Large excursion capability
  • Self-shielded Neo-Balanced motor structure
  • 4-layer underhung voice coil with polyimide former
  • High power handling
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MSRP: $32.99
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Overview

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

Dayton Audio's compact ND65-4 aluminum cone driver demonstrates the latest advances in high-excursion design processes. An efficient, low-distortion Neo-Balanced motor is combined with a rigid yet lightweight aluminum diaphragm, yielding impressive high-impact audio reproduction. Perfect for single point-source speaker applications, or combined in multiples and line arrays.

Product Details

BrandDayton Audio
ModelND65-4
Part Number290-204
UPC844632081460
Unit of MeasureEach
Weight0.4

Product Specifications

Nominal Diameter2-1/2"
Power Handling (RMS)15 Watts
Power Handling (MAX)30 Watts
Impedance4Ω
Frequency Response85 to 20,000Hz
Sensitivity83dB 2.83V/1m
Voice Coil Diameter0.75"

Thiele-Small Parameters

Resonant Frequency (Fs)89.5Hz
DC Resistance (Re)3.5Ω
Voice Coil Inductance (Le)0.44mH
Mechanical Q (Qms)5.56
Electromagnetic Q (Qes)0.68
Total Q (Qts)0.61
Compliance Equivalent Volume (Vas)0.03ft³
Mechanical Compliance of Suspension (Cms)1.26mm/N
BL Product (BL)2.68T·m
Diaphragm Mass Inc. Airload (Mms)2.5g
Maximum Linear Excursion (Xmax)3.5mm
Surface Area of Cone (Sd)15.6cm²

Materials of Construction

Cone MaterialAluminum
Surround MaterialRubber
Voice Coil Wire MaterialCopper
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialNeodymium

Mounting Information

Overall Outside Diameter2.52"
Baffle Cutout Diameter2.05"
Depth1.89"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.03ft³
Sealed F3125Hz
Vented Volume0.08ft³
Vented F360Hz

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