Hornresp
.txt · Hornresp driver database
Driver file ready to place in Hornresp’s Drivers folder.
Download for HornrespEighteen Sound 8M400F 8Ω
LF DriverMedia
Overview
LF Driver
Eighteen Sound
Eighteen Sound 8M400F
Eighteen Sound 8M400F is a 8" 8 ohm LF driver rated at 250W RMS. The validated T/S data includes Fs 89Hz, Qts 0.26, Vas 13.7L, Xmax 3mm, sensitivity 97.4dB, plus 68cm³ Vd and 318 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £114.19.
Size
8"
Impedance
8Ω
RMS Power
250W
Sensitivity
97.4dB
100.5dBmanufacturer; using T/S-derived value (3.1dB delta).
EBP
318
Vented alignment
Vd
68cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
frequency response173 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
173 plotted pointsMedium confidence2,657 selected pixels of 2,657 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,814 selected pixels of 1,950
T/S Parameters
Valid
Fs89Hz
Qts0.26
Qes0.28
Qms4.0
Vas13.7L
Re5.1Ω
Le0.70mH
BL13.1Tm
Sd227cm²
Mms17g
Xmax3.0mm
SPL97dB
Power250W
Power Nominal250W
Impedance8Ω
F Low200Hz
F High9000Hz
Pricing & availability
Price definitionsPrice movement
Best current price
Updated 11 Sept 2026
leanaudio
£114.19
inc VAT·2 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
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Open in 00 SimulatorCopy spec sheet
Plain text · Clipboard
Copy the available values as a clean label-and-value list.
Dimensions & Physical
Weight4.9kg
Diameter210.0mm
Overall Depth106.0mm
Cutout Diameter186.0mm
Bolt Circle Diameter196.0mm
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
8M400F
8"
Best current price
£114.19
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.
47%
Similarity
49% cheaper£58.00
Lavoce
MAF082.00
8"
Lower price
Xmax2.6mm-13%
Qts0.2-23%
BL17.2Tm+31%
Vas11.3L-18%
Qes0.22-21%
62%
Similarity
37% cheaper£71.54
Eminence
BETA 8CX
8"
Lower price
Xmax3.2mm+7%
Qts0.29+12%
BL11.2Tm-14%
Vas21.4L+56%
Qes0.31+11%
59%
Similarity
10% more£125.67
PRV Audio
8MB700FT-NDY
8"
Higher price
Xmax3.6mm+22%
Qts0.3+15%
BL12.8Tm-2%
Vas18.8L+37%
Qes0.33+18%
85%
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Acoustic Elegance
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Xmax3mm0%
Qts0.260%
BL15.5Tm+18%
Vas11.3L-18%
Qes0.27-4%
73%
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Oberton
8NM201
8"
Xmax2.8mm-8%
Qts0.29+10%
BL13.7Tm+5%
Vas8.1L-41%
Qes0.29+5%
73%
Similarity
Sica
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8"
Xmax3.5mm+17%
Qts0.3+15%
BL12.9Tm-1%
Vas13.7L0%
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PRV Audio
8MR600X-NDY
8"
Xmax3.8mm+25%
Qts0.29+12%
BL15.2Tm+16%
Vas12.6L-8%
Qes0.3+7%
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Oberton
8M250
8"
Xmax2.8mm-8%
Qts0.2-23%
BL13.7Tm+5%
Vas15.6L+14%
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PRV Audio
8MB700FT
8"
Xmax3.5mm+17%
Qts0.31+19%
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8"
Xmax3.3mm+8%
Qts0.22-17%
BL11.6Tm-11%
Vas21.6L+58%
Qes0.23-20%
52%
Similarity
Sica
8 L 2 SL
8"
Xmax3.5mm+17%
Qts0.32+23%
BL12.3Tm-6%
Vas18.2L+33%
Qes0.36+29%
51%
Similarity
Eighteen Sound
8MB710
8"
Xmax2.3mm-25%
Qts0.32+23%
BL13.4Tm+2%
Vas9L-34%
Qes0.35+25%