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DAYTON AUDIO ND90-4 Speaker Driver Full Range 20W 4 Ohm 86dB 80Hz - 15kHz Ø8.9cm

DAYTON AUDIO ND90-4 Speaker Driver Full Range 20W 4 Ohm 86dB 80Hz - 15kHz Ø8.9cm New
The compact Dayton Audio ND90-4 wide-range driver features an anodised aluminium cone and a rubber suspension for high linear excursion. Its low-distortion Neodymium magnet and suspended voice coil motor, combined with this excellent diaphragm, allows for a rich, dynamic reproduction with deep bass. Thus, the loudspeaker can be used either alone or in combination with other loudspeakers.

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Dayton Audio ND90-4

Speaker Driver Full Range 20W 4Ω 86dB 80Hz - 15000Hz Ø8.9cm

Dayton Audio ND90-4 Haut-Parleur Large Bande 20W 4Ω 86dB 80Hz - 15000Hz Ø8.9cm

The compact Dayton Audio ND90-4 wide-range driver features an anodised aluminium cone and a rubber suspension for high linear excursion. Its low-distortion Neodymium magnet and suspended voice coil motor, combined with this excellent diaphragm, allows for a rich, dynamic reproduction with deep bass. Thus, the loudspeaker can be used either alone or in combination with other loudspeakers.

Dayton Audio ND90-4 Haut-Parleur Large Bande 20W 4Ω 86dB 80Hz - 15000Hz Ø8.9cm

Technical characteristics

Specifications
Product typeFull range speaker driver
Nominal diameterØ8.9cm (3.5")
PowerRMS : 20W
Max : 40W
Impedance4Ω
Frequency response80Hz - 15000Hz
Sensitivity85.7dB @ 2.83V/1m
Voice coil diameterØ19mm
Weight249g
Thiele-Small Parameters
Resonant frequency (Fs)90.2Hz
DC Resistance (Re)3.6Ω
Voice coil inductance (Le)0.62mH @ 1kHz
Mechanical quality coefficient (Qms)5.10
Electromagnetic quality coefficient (Qes)0.72
Total quality coefficient (Qts)0.63
Compliance equivalent volume (Vas)1.06L (0.037 ft.³)
Mechanical compliance of suspension (Cms)0.73mm/N
Force factor (BL)3.47Tm
Diaphragm mass inc. airload  (Mms)4.3g
Maximum linear excursion (Xmax)4mm
Surface area of cone (Sd)31.2cm²
Volume of displacement (Vd)12.5cm³
Materials
coneAnodized Aluminium
SurroundRubber
Voice coil wireCopper
Voice coil formerKapton / Polyimide
Frame/BasketSteel
MagnetNeodymium
Shielding
Mounting informations
Total external diameterØ103.4mm (4.07")
Cutout diameterØ85.1mm (3.35")
Depth60.7mm (2.39")
Number of mounting holes4
Optimum cabinet size (Measured with BassBox 6 Pro)
Sealed volume0.1ft³
Sealed F390Hz
Vented volume0.16ft³
Vented F348Hz
 
Data sheet
ColorBlack
Speaker Power (W RMS)20
Speaker TypeFull range
Impedance (Ω)4
Loudspeaker diameter (cm)89
Diaphragm typeAluminium
Efficiency / Sensitivity (dB)86
Xmax (mm)4
Lowest frequency80
Highest frequency15000
 
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DAYTON AUDIO ND90-4 Speaker Driver Full Range 20W 4 Ohm 86dB 80Hz - 15kHz Ø8.9cm
The compact Dayton Audio ND90-4 wide-range driver features an anodised aluminium cone and a rubber suspension for high linear excursion. Its...

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