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Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Neo Driver 8 Ohm

Dayton Audio
Part #290-226

Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Neo Driver 8 Ohm

Dayton Audio
Part #290-226  
Model: ND91-8
The Dayton Audio ND91-8 3-1/2" Neo-Balanced full-range driver balances low distortion, extended range, and surprising bass impact. Its sophisticated motor design provides the underhung 1" voice coil with extended linear travel within the magnetic field. When teamed up with the matching ND series passive radiators this driver can produce incredible full sound from compact enclosures.
Key Features
  • Low distortion, full-range 65 Hz to 17 kHz performance
  • Rubber-edged black anodized aluminum alloy cone
  • Large excursion capability—5.1 mm Xmax, 25 mm peak
  • Self-shielded Neo-Balanced motor structure with copper alloy shorting ring
  • 1" 4-layer underhung voice coil with polyimide former
  • 30 watts RMS power handling
  • Great for line arrays and micro monitors
Your Price: $19.99
MSRP: $42.99
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Overview

Dayton Audio ND91-8 3-1/2" Aluminum Cone Full-Range Neo Driver 8 Ohm

Dayton Audio's ND91 aluminum cone full-range drivers are the latest addition to the acclaimed ND Series high output/low distortion neodymium transducers. By increasing the original ND90's voice coil diameter from 3/4" to 1" and adding a copper alloy shorting ring, the ND91-8 features even lower distortion and delivers better bass impact and dynamic range—with peak Xmax up to 25 mm!

This high-BL version further exploits the low distortion characteristics of the Neo-Balanced motor's optimized magnetic field, making the ND91 drivers an excellent choice for full-range point-source speaker enclosures, as well as extremely accurate, high resolution line arrays.

Product Details

BrandDayton Audio
ModelND91-8
Part Number290-226
UPC844632090455
Unit of MeasureEach
Weight0.7

Product Specifications

Nominal Diameter3-1/2"
Bolt Circle Diameter3.66
Power Handling (RMS)30 Watts
Power Handling (MAX)60 Watts
Impedance8Ω
Frequency Response70 to 17,000Hz
Sensitivity82.1dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)70.7Hz
DC Resistance (Re)7.8Ω
Voice Coil Inductance (Le)1.24mH
Mechanical Q (Qms)4.29
Electromagnetic Q (Qes)0.53
Total Q (Qts)0.47
Compliance Equivalent Volume (Vas)0.05ft³
Mechanical Compliance of Suspension (Cms)1.05mm/N
BL Product (BL)5.63T·m
Diaphragm Mass Inc. Airload (Mms)4.8g
Maximum Linear Excursion (Xmax)5.1mm
Surface Area of Cone (Sd)30.4cm²

Materials of Construction

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

Mounting Information

Overall Outside Diameter3.35"
Baffle Cutout Diameter3.01"
Depth2.22"
# Mounting Holes4

Parts Express Staff Recommended Enclosure Volume

Sealed Volume0.25ft³
Sealed F3125Hz
Vented Volume0.1ft³
Vented F354Hz

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