Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespEighteen Sound 8NMB420 8Ω
LF DriverMedia
Overview
LF Driver
Eighteen Sound
Eighteen Sound 8NMB420
Eighteen Sound 8NMB420 is a 8" 8 ohm LF driver rated at 280W RMS. The validated T/S data includes Fs 61Hz, Qts 0.28, Vas 33L, Xmax 5.8mm, sensitivity 95.9dB, plus 133cm³ Vd and 197 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £120.21.
Size
8"
Impedance
8Ω
RMS Power
280W
Sensitivity
95.9dB
EBP
197
Vented alignment
Vd
133cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
frequency response240 ptsp2medium
Curve provenanceInspect 2 tracesHide details
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
frequency response
Frequency response
240 plotted pointsMedium confidence2,388 selected pixels of 2,796 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,780 selected pixels of 2,011
T/S Parameters
Valid
Fs61Hz
Qts0.28
Qes0.31
Qms4.0
Vas33.0L
Re5.0Ω
Le0.35mH
BL10.0Tm
Sd230cm²
Mms15g
Xmax5.8mm
SPL96dB
Power280W
Power Nominal280W
Impedance8Ω
F Low60Hz
F High5500Hz
Pricing & availability
Price definitionsPrice movement
Other offers
2 vendorsleanbusiness
Updated 11 Sept 2026· 8Ω
Source: inc VAT · 20%
£127.33
inc VAT
thomann
Updated 11 Sept 2026· 8Ω
Source: inc VAT · 20%
£174.00
inc VAT
In stock
Best current price
Updated 11 Sept 2026
leanaudio
£120.21
Avg £140.51£20.30 below avg (-14.4%)
inc VAT·In stock
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
Weight1.7kg
Diameter210.0mm
Overall Depth99.0mm
Cutout Diameter186.0mm
Bolt Circle Diameter195.0mm
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
Eighteen Sound
8NMB420
8"
Best current price
£120.21
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size. Pin a driver to open a side-by-side comparison.
12 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
71%
Similarity
59% cheaper£48.80
Dayton Audio
DS215-8
8"
Lower price
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Qes0.38+23%
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Dayton Audio
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8"
Lower price
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Vas37.4L+13%
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Dayton Audio
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Lower price
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BL7.8Tm-22%
Vas24.4L-26%
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Qes0.36+16%
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B&C
8FMB51
8"
Lower price
Xmax5.5mm-5%
Qts0.280%
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Similarity
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FaitalPRO
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Lower price
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B&C
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Lower price
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Similarity
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B&C
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8"
Lower price
Xmax6.5mm+12%
Qts0.32+14%
BL12.9Tm+29%
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Lower price
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Image unavailable
31%
Similarity
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Wavecor
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7"
Xmax5.5mm-5%
Qts0.35+25%
BL6.5Tm-35%
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57%
Similarity
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SB Audience
ROSSO-8CX250
8"
Higher price
Xmax5.4mm-7%
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BL11.4Tm+14%
Vas15.8L-52%
Qes0.37+19%