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Dayton Audio ND105-4 4" Aluminum Cone Midbass Driver 4 Ohm

Brand:| Model: ND105-4
Product Video
Overview
Dayton Audio's ND105-4 compact aluminum cone midbass produces high-impact audio demonstrating the latest advances in high-excursion design processes.
Highlights
  • Extended-range 60 Hz to 10 kHz performance
  • Rubber-edged aluminum alloy cone
  • Large excursion capability—4 mm Xmax, 20 mm peak
  • Self-shielded Neo-Balanced motor structure
  • 1" 4-layer underhung voice coil with polyimide former
  • 30 watts RMS power handling
Part # 
290-212
Weight: 0.8 lbs.  
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Part # 290-212
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Product Details

Dayton Audio ND105-4 4" Aluminum Cone Midbass 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 Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)30 Watts
  • Power Handling (max)60 Watts
  • Impedance4 ohms
  • Frequency Response60 to 10,000 Hz
  • Sensitivity82.6 dB 1W/1m
  • Voice Coil Diameter1"
Thiele-Small Parameters
  • Resonant Frequency (Fs)53.8 Hz
  • DC Resistance (Re)3.7 ohms
  • Voice Coil Inductance (Le)0.78 mH
  • Mechanical Q (Qms)7.16
  • Electromagnetic Q (Qes)0.59
  • Total Q (Qts)0.55
  • Compliance Equivalent Volume (Vas)0.16 ft.³
  • Mechanical Compliance of Suspension (Cms)1.2 mm/N
  • BL Product (BL)3.9 Tm
  • Diaphragm Mass Inc. Airload (Mms)7.2g
  • Maximum Linear Excursion (Xmax)4 mm
  • Surface Area of Cone (Sd)51.5 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialSteel
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter4.13"
  • Baffle Cutout Diameter3.66"
  • Depth2.64"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.1 ft.³
  • Sealed F384 Hz
  • Vented Volume0.3 ft.³
  • Vented F341 Hz
Dayton Audio ND105-4 4" Aluminum Cone Midbass Driver 4 Ohm
  • BrandDayton Audio
  • ModelND105-4
  • Part Number290-212
  • UPC844632081071
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (26 Reviews)
  • Weight0.8 lbs.
  • Case Qty36
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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in the Midrange / Midbass Drivers & Full-Range Speakers product category.

Reviews

Dayton Audio ND105-4 4" Aluminum Cone Midbass Driver 4 Ohm
Dayton Audio ND105-4 4" Aluminum Cone Midbass Driver 4 Ohm is rated 4.6923 out of 5 by 26.
Rated 5 out of 5 by from Good sound & constructionI own a 98 BMW 328ic. It is a multi speaker car with separate tweeters and midbass drivers in the rear with a BMW specific mounting plate. I was able to remove the OEM paper cone midbass driver that had dry rotted, and install this new Dayton unit in its place. Its not a perfect fit to the OEM, but big enough to still get (4) self tapping screws installed. Sound quality greatly improved & pleased with my purchase.
Date published: 2014-05-16
Rated 5 out of 5 by from Amazing little driversAlright, now 9 months later writing again on these little guys. I have designed proper fitting sealed enclosures for them and they sound beyond amazing for their size! You can blast dubstep or other bass heavy music and you will be quite pleased. All while being put through full range! Only cons I can put on them is their only somewhat peaky highs which still arent so bad at high volumes compared to many other drivers of the same size, especially a lot of coaxials. If your looking to use them as subs your not going to bad off at all, though I would recommend getting the 5 1/4" version if possible for that extra air displacement.
Date published: 2014-05-12
Rated 5 out of 5 by from Little guy packs a punch!I am currently experimenting with several different drivers to use in a new center channel speaker I want to build. These are awesome! I built two enclosures, one ported and one sealed and couldn't believe how good these sound. I know these are not technically called a subwoofer, but they will surprise you for their size. They did fall off a little on the highs, but that is clearly stated in the specs. These would be an excellent choice for a MTM speaker.
Date published: 2014-04-28
Rated 5 out of 5 by from Impressive for 4"Great midbass and vocal audio from this 4" speaker. Excursion is very impressive. Will probably buy more of them soon or for next build.
Date published: 2014-03-17
Rated 5 out of 5 by from Nice little speakersBought this speaker for a boom box project. Works ok. I am fairly pleased with the sound but I more bought it for the looks. Great high roll surround to compliment the look of the tang band 5 1/4 subwoofer. It is still breaking in and seems to be more alive each time I play it. Not that great in the lowest mids but I have found that as a trait of many smaller aluminum drivers. For the money it is great for my application. Neo magnet makes it super lightweight. It has the rounded square flange on it so it took some fiddling in cad to get my CNC tool paths perfect but it looks nice and sounds acceptable. Still doing finishing on my boom box project but I am taking time out to write a review before I get my hands covered in paint.
Date published: 2014-03-05
Rated 5 out of 5 by from Amazing Little thumperStill working on my overall design, but initial tests of these little guys is amazing. I think I can get down at least to 40hz, maybe a bit lower...I am planning a small subwoofer for my convertible using 4 of these - maybe 6 if I can get the cabinet volume right in the space I have.
Date published: 2014-02-01

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Dayton Audio ND105-4 4" Aluminum Cone Midbass Driver 4 Ohm

I have hooked this speaker up several small amplifiers I have lying around. It clips as soon as I turn up the gain (even when only LF) - from reading comments it sounds like there is some power here, but I can't get there.Any ideas? worried I have a dud..

Asked by: ahillelt

i understand 4mm Xmax. what is the 20mm Peak meaning?

Asked by: knobbies
The peak rating in this case refers to the amount of distance the cone can move forward and backward (peak to peak) before there is physical damage.
Answered by: MattP
Date published: 2014-10-06

if I were to make an enclosure from 6 inch ID PVC pipe and use your 1 inch dia x 4 inch port how long of an inside dimension should I make the pipe for the best sound with this driver. Thank you 

Asked by: speaker novice
I would recommend a length of 14" if using that port. This will provide a tuning frequency of 44 Hz.
Answered by: MattP
Date published: 2014-09-12

What would be a good Mini-Amplifier two of those, one for each channel One of the board ones or the assembled and ready ones

Asked by: shayd
We have many options that will work well for this application. Whether you want a finished amp or a board amp is up to you, but I would recommend anything from 15-25 watts per channel for a pair of those drivers.
Answered by: MattP
Date published: 2014-11-11

Looking at this as a midrange, crossed over from 300-2khz (infinity prelude mts). Used with 4 of the 5.25" models - I tried the 3.5", but it is too small. What is the diameter of the outer roll of the surround? Suitable as midrange?

Asked by: fiftyonefifty
Yes these will work well as a midrange. The outer diameter of the surround is 95mm.
Answered by: MattP
Date published: 2014-03-31

What's the dementions the (volume) for this small 4in soo I could build a box for it? Or what would you recommend?

Asked by: Christian97
If you want a sealed designed I would recommend 0.105 cubic feet which will give you an F3 of 84 Hz and in room response into the upper 40's. A ported design is 0.3 cubic feet with a 1" diameter port that is 3.5" long for a tuning frequency of 41 Hz.
Answered by: MattP
Date published: 2014-11-11

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