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

€33,95

10+ expected on 31-03-2025

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

11 reviews

Brand: Dayton Audio

Show all Full-range woofer

3.5" | 4 Ω

ND91-4 3-1/2" Aluminum Cone Full-Range Driver 4 Ohm

€ 33,⁹⁵ Out of stock10+ expected on 31-03-2025

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Five-year warranty
45-day cooling-off period to return

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Product description Dayton Audio ND91-4 Full-Range Woofer

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.

Highlights

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

Product details

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

Specifications

Article number: ND91-4
EAN: 0844632090448
Woofer Series: Dayton Audio ND series
Woofer Type: Full-Range
Nominal Diameter: 3.50"
Power Handling (RMS): 30 watts
Power Handling (max): 60 watts
Impedance (Z): 4 ohms
Sensitivity (SPL at 1m / 2.83V): 85.6 dB
Frequency Response: 65 - 17,000 Hz
Voice Coil Diameter: 25 mm
DC Resistance (Re): 4.3 ohms
Voice Coil Inductance (Le): 0.83 mH @ 1 kHz
Resonant Frequency (Fs): 74 Hz
Mechanical Q (Qms): 4.24
Electromagnetic Q (Qes): 0.45
Total Q (Qts): 0.41
Diaphragm Mass Inc. Airload (Mms): 4.8g
Mechanical Compliance of Suspension (Cms): 0.96 mm/N
Surface Area of Cone (Sd): 30.4 cm²
Volume of Displacement (Vd): 12.2 cm³
BL Product (BL): 4.59 Tm
Compliance Equivalent Volume (Vas): 1.4 liters
Maximum Linear Excursion (Xmax): 4.6 mm
Cone / Diaphragm Material: Aluminum Cone
Surround Material: Rubber
Voice Coil Wire Material: Aluminum
Voice Coil Former: Kapton® / Polyimide
Basket / Frame Material: Steel
Magnet Material: Ferrite
Shielded: Yes
Overall Outside Diameter: 103.5 mm
Overall Depth: 63.4 mm
Baffle Cutout Diameter: 85 mm
# Mounting Holes: 4
Sealed Volume: 0.01 ft.³
Sealed F3: 132 Hz
Vented Volume: 0.03 ft.³
Vented F3: 73 Hz

Reviews

11 reviews

Review this product

5 of 5

By Curt on 22 December 2024

5 of 5

A good upgrade on the 90-4. This has a larger voice coil, more driving force and lower resonance.

By Tim on 12 May 2024

5 of 5

Clear sound and long throw for bass. Works great in an LFS CTL3 nano bass cab!

By Tim on 15 November 2023

5 of 5

Medium levels of THD, lots of excursion, quite a delicate cone (don't touch it at high excursion with your fingernail, you'll dent it). Overall a great woofer for a compact boombox or a decent option for bookshelf speaker, tho I'd like a lower THD level for a quality bookshelf.

By Sebastian Patrias on 18 July 2023

5 of 5

Jó kis hangszóró.Végre egy jól átgondolt dizájn ami összhangban van az akusztikai paraméterekkel.Szuper!

By Simon L. on 29 December 2020

5 of 5

I was not able to find other driver quite like this one. Very linear with a great low-end. Suitable for very small boxes with a passive radiator. This + one of the ND tweeters + 2x ND90PR would make a great little bookshelves. Only thing I dislike is the ugliness when mounted from the front. They look much cleaner when mounted from the rear side of the baffle, but then you might get into problems with time allignment

By tk. on 19 October 2019

5 of 5

Solid bass some mids. I crossed this with a cheap Dayton ND 16 Fa6 tweeter crossed at around 5khz

By Valentin N. on 28 May 2019

5 of 5

i bought those for a small micro monitor coupled with a cheap Dayton tweeter. I expected some bass from these, but the output of bass is fantastic. From i choose to cross them at about 5 kHz, 4th order crossover with 6 components.

By Valentin Nitescu on 21 May 2019

5 of 5

Excellent drivers, incredible xmax and spl for their size.

By Nathan L. on 5 April 2018

5 of 5

-6dB at 45Hz is really impressive for such a tiny driver.

By Marek Z. on 4 April 2018

5 of 5

These little beast are monsters.. The first hours the woofers may sound bad, obviously, all drivers must be broken in! I did mine for 7 hours and it already had a huge huge difference.. I'm using sure electronics amplifier 2x30w with 8 ohms load What to say.. I really really recommend these beasts! For the price. It's the same as ordering outside europe ( you have to pay eu customs, tax tax tax, shipping fee and shipping time is slow). Ins...

By Joeff on 15 November 2017