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Overview
LF Driver
Dayton Audio
Dayton Audio ND140-8
Dayton Audio ND140-8 is a 4" 8 ohm LF driver rated at 40W RMS. The validated T/S data includes Fs 57Hz, Qts 0.68, Vas 7.7L, Xmax 4mm, sensitivity 84.5dB, plus 35cm³ Vd and 72 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
Size
4"
Impedance
8Ω
RMS Power
40W
Sensitivity
84.5dB
EBP
72
Either alignment
Vd
35cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
30 degrees240 ptsp1medium
45 degrees192 ptsp1medium
on-axis240 ptsp1medium
Curve provenanceInspect 4 tracesHide details
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
240 plotted pointsMedium confidence687 selected pixels of 959 - Trace datasheet-response-trace-poc/v1
45 degrees
Frequency response
192 plotted pointsMedium confidence649 selected pixels of 1,374 - Trace datasheet-response-trace-poc/v1
on-axis
Frequency response
240 plotted pointsMedium confidence1,568 selected pixels of 1,568 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,356 selected pixels of 1,356
T/S Parameters
Valid
Fs57Hz
Qts0.68
Qes0.79
Qms5.0
Vas7.7L
Re7.8Ω
Le1.44mH
BL6.0Tm
Sd87cm²
Mms10g
Xmax4.0mm
SPL85dB
Power40W
Impedance8Ω
F Low54Hz
F High8000Hz
Pricing & availability
Price definitionsNo current price found
Pricing may appear after the next vendor refresh.
Use this driver
Open it in 00 Simulator, download it for your enclosure tool, or copy the specification values.
Files use canonical values. Required mechanical fields are derived only where the target format needs them.
WinISD
.wdr · WinISD driver editor
Native WinISD driver record with the required SI conversions.
Download for WinISDBASTA!
.bastaelement · BASTA! loudspeaker simulator
Native BASTA! element file using its documented SI-unit fields.
Download for BASTA!VituixCAD
.wdr · VituixCAD 2 Enclosure
A WinISD driver file that VituixCAD imports directly.
Download for VituixCAD00 Simulator
Direct import · Web app
Start a new enclosure simulation with this driver already loaded.
Open in 00 SimulatorCopy spec sheet
Plain text · Clipboard
Copy the available values as a clean label-and-value list.
Dimensions & Physical
Weight0.4kg
Diameter138.0mm
Overall Depth70.5mm
Cutout Diameter120.0mm
Similar Drivers
Size stays fixed. Tune the T/S ranges to change what counts as a match, or add a specific driver to compare it directly.
Reference
Dayton Audio
ND140-8
4"
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size.
11 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
67%
Similarity
GRS
4SMP-8
4"
Xmax4mm0%
Qts0.65-4%
BL4.2Tm-31%
Vas4L-48%
Qes0.83+5%
60%
Similarity
Dayton Audio
DA135-8
4"
Xmax3mm-25%
Qts0.54-21%
BL5.3Tm-12%
Vas7.4L-4%
Qes0.68-14%
58%
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Visaton
W 100 S - 8 Ohm
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Xmax4mm0%
Qts0.54-21%
BL4.3Tm-29%
Vas5.4L-30%
Qes0.67-15%
55%
Similarity
CIARE
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5"
Xmax3.9mm-3%
Qts0.55-19%
BL5.2Tm-14%
Vas6.1L-21%
Qes0.76-4%
54%
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Lavoce
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Xmax3.4mm-15%
Qts0.64-6%
BL5.9Tm-2%
Vas4.1L-47%
Qes0.74-6%
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Similarity
Monacor
TFX0515/8
5"
Xmax3.8mm-6%
Qts0.75+10%
BL7Tm+15%
Vas6.5L-16%
Qes0.5-36%
46%
Similarity
HiVi
B4N
4"
Xmax3.2mm-20%
Qts0.52-24%
BL5.1Tm-16%
Vas4.5L-41%
Qes0.63-20%
45%
Similarity
£532.95
Accuton
C90-6-724
5"
Xmax3mm-25%
Qts0.6-12%
BL6Tm-2%
Vas5.1L-34%
Qes0.67-15%
37%
Similarity
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Lavoce
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Xmax3.1mm-22%
Qts0.6-12%
BL6.4Tm+6%
Vas3.3L-58%
Qes0.66-16%
Image unavailable
36%
Similarity
Wavecor
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4.5"
Xmax3mm-25%
Qts0.55-19%
BL5.6Tm-7%
Vas3.5L-55%
Qes0.59-25%
27%
Similarity
Celestion
TF0512HE
5"
Xmax4.8mm+19%
Qts0.54-21%
BL6.7Tm+11%
Vas3.5L-55%
Qes0.57-28%