PEX Dayton Audio ND91 4 3 1/2" Aluminum Cone Full Range Neo Driver 4 Ohm P5474233PEX-290-224 https://cdnimages.opentip.com/full/PEX/PEX-290-224.jpg Dayton Audio ND91 4 3 1/2" Aluminum Cone Full Range Neo Driver 4 Ohm Manufacturer Part Number: ND91-4The low distortion and high excursion capabilities of the Dayton Audio ND91-4 3-1/2\" full-range driver make it an ideal candidate for miniature point-source monitors, surround speakers, and line arrays. 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-4.6 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 Dayton Audio ND91-4 3-1/2\" Aluminum Cone Full-Range Neo Driver 4 OhmDayton 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 ND91-4 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 ModelND91-4 Part Number290-224 UPC844632090448 Unit of MeasureEach Weight0.7 Product Specifications Nominal Diameter3-1/2\" Moving Mass Of Diaphragm (Mmd)4.8 Power Handling (RMS)30 Watts Power Handling (MAX)60 Watts Impedance4Ω Frequency Response65 to 17,000Hz Sensitivity85.6dB 2.83V/1m Voice Coil Diameter1\" Thiele-Small Parameters Resonant Frequency (Fs)74Hz DC Resistance (Re)4.3Ω Voice Coil Inductance (Le)0.83mH Mechanical Q (Qms)4.24 Electromagnetic Q (Qes)0.45 Total Q (Qts)0.41 Compliance Equivalent Volume (Vas)0.05ft³ Mechanical Compliance of Suspension (Cms)0.96mm/N BL Product (BL)4.59T·m Maximum Linear Excursion (Xmax)4.6mm 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 MaterialFerrite Mounting Information Overall Outside Diameter3.35\" Baffle Cutout Diameter3.01\" Depth2.22\" # Mounting Holes4 Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion) Sealed Volume0.01ft³ Sealed F3132Hz Vented Volume0.03ft³ Vented F373Hz 5474233 844632090448 1.09lbs 0.00 0.00 0.00
Dayton Audio
33.64 2023-01-21 In Stock
customer review - by , April 4, 2018
5/ 5stars
excellent product slamms hard sound clear
customer review - by , October 10, 2016
5/ 5stars
Everywhere on the internet, people are using these for small enclosure computer speakers or bluetooth speakers. So i have a different take since I used this in car audio. My car has a 3.534; on the dash. I was originally going to use a coaxial but decided against it. However, All the well known midrange speakers from car audio brands are up there in price. This woofer was reasonable in price so I gave it a shot. Pros : super clear. More full sounding than most 3 inch speakers. free air, I was able to cross at 140 Hz high pass with a good result. Low pass was set at 6500 hz 12db/oct Cons: it's not true full range, it needs to be crossed as part of a 3 way system
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Dayton Audio ND91-4 3-1/2" Aluminum Cone Full-Range Neo Driver 4 Ohm

stars Rating 5 | 2 reviews
Brand Dayton Audio
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SKU: PEX-290-224
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Product Description

Manufacturer Part Number: ND91-4

The low distortion and high excursion capabilities of the Dayton Audio ND91-4 3-1/2" full-range driver make it an ideal candidate for miniature point-source monitors, surround speakers, and line arrays. 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-4.6 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


Dayton Audio ND91-4 3-1/2" Aluminum Cone Full-Range Neo Driver 4 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 ND91-4 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.

BrandDayton Audio
ModelND91-4
Part Number290-224
UPC844632090448
Unit of MeasureEach
Weight0.7
Nominal Diameter3-1/2"
Moving Mass Of Diaphragm (Mmd)4.8
Power Handling (RMS)30 Watts
Power Handling (MAX)60 Watts
Impedance
Frequency Response65 to 17,000Hz
Sensitivity85.6dB 2.83V/1m
Voice Coil Diameter1"
Resonant Frequency (Fs)74Hz
DC Resistance (Re)4.3Ω
Voice Coil Inductance (Le)0.83mH
Mechanical Q (Qms)4.24
Electromagnetic Q (Qes)0.45
Total Q (Qts)0.41
Compliance Equivalent Volume (Vas)0.05ft³
Mechanical Compliance of Suspension (Cms)0.96mm/N
BL Product (BL)4.59T·m
Maximum Linear Excursion (Xmax)4.6mm
Surface Area of Cone (Sd)30.4cm²
Cone MaterialAluminum
Surround MaterialRubber
Voice Coil Wire MaterialAluminum
Voice Coil FormerKapton® / Polyimide
Basket / Frame MaterialSteel
Magnet MaterialFerrite
Overall Outside Diameter3.35"
Baffle Cutout Diameter3.01"
Depth2.22"
# Mounting Holes4
Sealed Volume0.01ft³
Sealed F3132Hz
Vented Volume0.03ft³
Vented F373Hz

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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By A Customer
Date Added: Friday 13 April, 2018
excellent product slamms hard sound clear
Rating: 5 stars [5 of 5 Stars!]
By Ryan A. Sobieck
Date Added: Tuesday 11 October, 2016
Everywhere on the internet, people are using these for small enclosure computer speakers or bluetooth speakers. So i have a different take since I used this in car audio. My car has a 3.534; on the dash. I was originally going to use a coaxial but decided against it. However, All the well known midrange speakers from car audio brands are up there in price. This woofer was reasonable in price so I gave it a shot. Pros : super clear. More full sounding than most 3 inch speakers. free air, I was able to cross at 140 Hz high pass with a good result. Low pass was set at 6500 hz 12db/oct Cons: it's not true full range, it needs to be crossed as part of a 3 way system
Rating: 5 stars [5 of 5 Stars!]
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