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Overview
LF Driver
Eighteen Sound
Eighteen Sound 12ND940
Eighteen Sound 12ND940 is a 12" 8 ohm LF driver rated at 600W RMS. The validated T/S data includes Fs 49Hz, Qts 0.20, Vas 64.8L, Xmax 7.6mm, sensitivity 97.8dB, plus 404cm³ Vd and 245 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £209.77.
Size
12"
Impedance
8Ω
RMS Power
600W
Sensitivity
97.8dB
100.0dBmanufacturer; using T/S-derived value (2.2dB delta).
EBP
245
Vented alignment
Vd
404cm³
Datasheet traces
Frequency and impedance curves traced from the manufacturer PDF.
frequency response240 ptsp2medium
Curve provenanceInspect 1 traceHide 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 confidence11,460 selected pixels of 11,460
T/S Parameters
Valid
Fs49Hz
Qts0.20
Qes0.20
Qms5.6
Vas64.8L
Re5.0Ω
Le0.57mH
BL22.2Tm
Sd531cm²
Mms66g
Xmax7.6mm
SPL98dB
Power600W
Power Nominal600W
Impedance8Ω
F Low50Hz
F High3000Hz
Pricing & availability
Price definitionsPrice movement
Best current price
£209.77
inc VAT·Vendor hidden
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.
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Direct import · Web app
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Plain text · Clipboard
Copy the available values as a clean label-and-value list.
Dimensions & Physical
Weight4.3kg
Diameter310.0mm
Overall Depth147.0mm
Cutout Diameter283.0mm
Bolt Circle Diameter295.0mm
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
12ND940
12"
Best current price
£209.77
Compare on
Matches sit inside every range. Size stays fixed automatically.
5 active T/S params, plus size.
12 matches
Compare a specific driver
Added drivers stay at the front of the list, whatever the ranges say.
84%
Similarity
50% cheaper£104.34
RCF
MB12N351
12"
Lower price
Xmax6mm-21%
Qts0.20%
BL22.5Tm+1%
Vas61L-6%
Qes0.21+5%
68%
Similarity
44% cheaper£117.54
BishopSound
BDP12
12"
Lower price
Xmax7mm-8%
Qts0.22+10%
BL18.3Tm-18%
Vas75.4L+16%
Qes0.24+20%
62%
Similarity
43% cheaper£120.00
RCF
LF12G301
12"
Lower price
Xmax7mm-8%
Qts0.22+10%
BL19Tm-14%
Vas97L+50%
Qes0.23+15%
78%
Similarity
34% cheaper£138.00
B&C
12CL76
12"
Lower price
Xmax6mm-21%
Qts0.21+5%
BL22.4Tm+1%
Vas59L-9%
Qes0.22+10%
67%
Similarity
28% cheaper£151.51
B&C
12FW76
12"
Lower price
Xmax7mm-8%
Qts0.18-10%
BL26.4Tm+19%
Vas45L-31%
Qes0.18-10%
49%
Similarity
27% cheaper£153.26
Eighteen Sound
12MB650
12"
Lower price
Xmax5.5mm-28%
Qts0.23+15%
BL19Tm-14%
Vas90L+39%
Qes0.24+20%
61%
Similarity
22% cheaper£163.54
FaitalPRO
12FH510
12"
Lower price
Xmax7.5mm-1%
Qts0.24+20%
BL18.9Tm-15%
Vas81.3L+25%
Qes0.25+25%
86%
Similarity
19% cheaper£169.00
B&C
12NDL76
12"
Lower price
Xmax7mm-8%
Qts0.20%
BL20.1Tm-9%
Vas73L+13%
Qes0.21+5%
71%
Similarity
19% cheaper£169.00
B&C
12NDL76
12"
Lower price
Xmax6mm-21%
Qts0.19-5%
BL16.5Tm-26%
Vas70L+8%
Qes0.20%
53%
Similarity
19% cheaper£170.65
RCF
MB12N301
12"
Lower price
Xmax6mm-21%
Qts0.24+20%
BL19Tm-14%
Vas71L+10%
Qes0.26+30%
50%
Similarity
14% cheaper£180.28
FaitalPRO
12FH500
12"
Lower price
Xmax7.5mm-1%
Qts0.25+25%
BL17.5Tm-21%
Vas87.3L+35%
Qes0.26+30%
63%
Similarity
2% cheaper£204.98
BMS
12S330
12"
Lower price
Xmax8mm+5%
Qts0.24+20%
BL23Tm+4%
Vas85.5L+32%
Qes0.25+25%