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Dayton Audio ND90-4 3-1/2" Aluminum Cone Full-Range Neo Driver 4 Ohm

Dayton Audio
Part #290-208

Dayton Audio ND90-4 3-1/2" Aluminum Cone Full-Range Neo Driver 4 Ohm

Dayton Audio
Part #290-208  
Dayton Audio's ND90-4 compact aluminum cone 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
  • Full-range 80 Hz to 15 kHz performance
  • Rubber-edged aluminum alloy cone
  • Large excursion capability—4 mm Xmax, 20 mm peak
  • Self-shielded Neo-Balanced motor structure
  • 3/4" 4-layer underhung voice coil with polyimide former
  • 20 watts RMS power handling
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MSRP: $33.99
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Overview

Dayton Audio ND90-4 3-1/2" Aluminum Cone Full-Range Neo Driver 4 Ohm

Dayton Audio's compact aluminum cone drivers demonstrate 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 applications, or combined in multiples and line arrays.

Product Details

BrandDayton Audio
ModelND90-4
Part Number290-208
UPC844632081064
Unit of MeasureEach
Weight0.55

Product Specifications

Nominal Diameter3-1/2"
Power Handling (RMS)20 Watts
Power Handling (MAX)40 Watts
Impedance4Ω
Frequency Response80 to 15,000Hz
Sensitivity85.7dB 2.83V/1m
Voice Coil Diameter0.75"

Thiele-Small Parameters

Resonant Frequency (Fs)90.2Hz
DC Resistance (Re)3.6Ω
Voice Coil Inductance (Le)0.62mH
Mechanical Q (Qms)5.1
Electromagnetic Q (Qes)0.72
Total Q (Qts)0.63
Compliance Equivalent Volume (Vas)0.037ft³
Mechanical Compliance of Suspension (Cms)0.73mm/N
BL Product (BL)3.47T·m
Diaphragm Mass Inc. Airload (Mms)4.3g
Maximum Linear Excursion (Xmax)4mm
Surface Area of Cone (Sd)31.2cm²

Materials of Construction

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

Mounting Information

Overall Outside Diameter4.07"
Baffle Cutout Diameter3.01"
Depth2.39"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.04ft³
Sealed F3122Hz
Vented Volume0.1ft³
Vented F356Hz

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