- Net volume
- 45L
- Tuning
- 55Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
12-inch LF driver · 300 W
Eighteen Sound 12NDA520 8Ω
8 Ω · 55–6000 Hz
£230.40
SteadyLean Business · All 3 offers
- Fs
- 50Hz
- Xmax
- 4mm
- SPL
- 99dB
- Pe
- 300W
- BL
- 14.4T·m
- Vd
- 212cm³
- Qts
- 0.27
- Vas
- 111L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 1 trace
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,216 selected pixels of 1,216
Published graphs
Eighteen Sound 12NDA520 is a 12-inch 8 ohm LF driver rated at 300 W RMS. The validated T/S data includes Fs 50 Hz, Qts 0.27, Vas 111 L, Xmax 4 mm, sensitivity 99 dB, plus 212 cm³ Vd and 179 EBP. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £230.40.
The published T/S values agree with each other
Thiele/Small
- Fs
- 50Hz
- Qts
- 0.27
- Qes
- 0.28
- Qms
- 5.5
- Vas
- 111L
- Re
- 5.2Ω
- Le
- 0.03mH
Motor and cone
- BL
- 14.4T·m
- Sd
- 531cm²
- Mms
- 36g
- Xmax
- 4mm
- Vd †
- 212cm³
Power and response
- Sensitivity †
- 99dB
- Manufacturer sensitivity
- 100.5dB
- Power
- 300W
- Nominal power
- 300W
- Impedance
- 8Ω
- Range
- 55–6000Hz
- EBP †
- 179 · Leans vented
Size and mounting
- Diameter
- 3154mm
- Cutout
- 282mm
- Bolt circle
- 2964mm
- Depth
- 125mm
- Weight
- 3kg
Other published values
- Power Program
- 450
Sensitivity shows 99.0 dB, calculated from the T/S values. Eighteen Sound publishes 100.5 dB, 1.5 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 12″
- BL
- 14.4T·m
- Fs
- 50Hz
- Le
- 0.03mH
- Re
- 5.2Ω
- Sd
- 531cm²
- Mms
- 36g
- Qes
- 0.28
- Qms
- 5.5
- Qts
- 0.27
- SPL
- 99dB
- Vas
- 111L
- Xmax
- 4mm
- Power
- 300W
- Impedance
- 8Ω
- Sensitivity
- 100.5dB
- Low limit
- 55Hz
- Nominal power
- 300W
- Power Program
- 450
- Calculated sensitivity †
- 99dB
- High limit
- 6000Hz
- Manufacturer sensitivity
- 100.5dB
- Weight
- 3kg
- Diameter
- 3154mm
- Depth
- 125mm
- Cutout
- 282mm
- Bolt circle
- 2964mm
02
Designs
What Eighteen Sound suggests for the 12NDA520. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 12NDA520 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 12NDA520. Clear differences are green when better and red when worse.
This driver12NDA520
Best price
£230.40
Fs
50 Hz
Qts
0.27
Vas
111 L
BL
14.4 T·m
Xmax
4 mm
Sensitivity
99 dB
Power
300 W
Dayton AudioPA310-8
£82.27 · 64% less, betterFs39 Hz −22%, better
Qts0.29 +7%
Vas91.8 L −17%, better
BL18 T·m +25%, better
Xmax5 mm +25%, better
Sensitivity94.6 dB −4.4, worse
SB AudienceROSSO-12MW300
£106.55 · 54% less, betterFs48 Hz −4%
Qts0.27 –
Vas85.9 L −23%, better
BL17.4 T·m +21%, better
Xmax6.7 mm +67%, better
Sensitivity97.3 dB −1.7
EminenceKAPPA-12A
£119.68 · 48% less, betterFs45 Hz −10%, better
Qts0.27 –
Vas112.1 L –
BL15.2 T·m +6%
Xmax3.2 mm −20%, worse
Sensitivity97.6 dB −1.4
Beyma12WRS400
£122.29 · 47% less, betterFs42 Hz −16%, better
Qts0.29 +7%
Vas91 L −18%, better
BL17.4 T·m +21%, better
Xmax6.3 mm +57%, better
Sensitivity95.4 dB −3.6, worse
EminenceKAPPA PRO-12A
£130.90 · 43% less, betterFs37 Hz −26%, better
Qts0.24 −11%, better
Vas121 L +9%
BL17.3 T·m +20%, better
Xmax4.8 mm +20%, better
Sensitivity95.9 dB −3.1, worse
B&C12HPL64
£132.00 · 43% less, betterFs52 Hz +4%
Qts0.32 +19%, worse
Vas85 L −23%, better
BL14.9 T·m +3%
Xmax4 mm –
Sensitivity97.4 dB −1.6
B&C12HPL76
£135.13 · 41% less, betterFs49 Hz –
Qts0.25 −7%
Vas91 L −18%, better
BL17.3 T·m +20%, better
Xmax4 mm –
Sensitivity98.2 dB −0.8
B&C12FW64
£136.93 · 41% less, betterFs55 Hz +10%, worse
Qts0.29 +7%
Vas64 L −42%, better
BL15.5 T·m +8%
Xmax5 mm +25%, better
Sensitivity97.3 dB −1.7
RCFMB12G301
£142.33 · 38% less, betterFs53 Hz +6%
Qts0.27 –
Vas72 L −35%, better
BL17 T·m +18%, better
Xmax6 mm +50%, better
Sensitivity97.9 dB −1.1
Beyma12WR400
£142.43 · 38% less, betterFs42 Hz −16%, better
Qts0.27 –
Vas91 L −18%, better
BL18 T·m +25%, better
Xmax6.3 mm +57%, better
Sensitivity95.8 dB −3.2, worse
LavoceWAN123.00
£163.28 · 29% less, betterFs49 Hz –
Qts0.27 –
Vas68.8 L −38%, better
BL17.9 T·m +24%, better
Xmax6.9 mm +73%, better
Sensitivity96.6 dB −2.4, worse
REDCATT12NPM
£167.38 · 27% less, betterFs49 Hz –
Qts0.31 +15%, worse
Vas63.6 L −43%, better
BL17.3 T·m +20%, better
Xmax4.0 mm –
Sensitivity95.7 dB −3.3, worse
FaitalPRO12FH500
£180.28 · 22% less, betterFs45 Hz −10%, better
Qts0.25 −7%
Vas87.3 L −21%, better
BL17.5 T·m +22%, better
Xmax7.5 mm +88%, better
Sensitivity96.9 dB −2.1, worse
Eighteen Sound12NMB420
£187.96 · 18% less, betterFs53 Hz +6%
Qts0.28 +4%
Vas105 L −5%
BL13.9 T·m −3%
Xmax4 mm –
Sensitivity99.2 dB –
Sica12 N 3 PL
£207.65 · 10% less, betterFs46 Hz −8%
Qts0.30 +11%, worse
Vas87.9 L −21%, better
BL16 T·m +11%, better
Xmax5.5 mm +38%, better
Sensitivity96.4 dB −2.6, worse
B&C12FHX76
£291.66 · 27% more, worseFs48 Hz −4%
Qts0.33 +22%, worse
Vas88 L −21%, better
BL14.4 T·m –
Xmax4 mm –
Sensitivity96.3 dB −2.7, worse
VisatonTIW 300
£411.54 · 79% more, worseFs25 Hz −50%, better
Qts0.28 +4%
Vas160 L +44%, worse
BL16.5 T·m +15%, better
Xmax7.5 mm +88%, better
Sensitivity91.2 dB −7.8, worse
Scanspeak28W/4878T01
£586.08 · 154% more, worseFs23 Hz −54%, better
Qts0.26 −4%
Vas104 L −6%
BL12 T·m −17%, worse
Xmax7 mm +75%, better
Sensitivity88.7 dB −10.3, worse
Scanspeak28W/8878T01
£586.08 · 154% more, worseFs22 Hz −56%, better
Qts0.31 +15%, worse
Vas116 L +5%
BL14.9 T·m +3%
Xmax7.5 mm +88%, better
Sensitivity87.8 dB −11.2, worse
Scanspeak32W/4878T01
£586.08 · 154% more, worseFs23 Hz −54%, better
Qts0.28 +4%
Vas170 L +53%, worse
BL13 T·m −10%
Xmax7 mm +75%, better
Sensitivity90.4 dB −8.6, worse
PRV Audio12MB1000FT-4
No current priceFs46 Hz −9%
Qts0.27 –
Vas95.5 L −14%, better
BL14.5 T·m –
Xmax6.1 mm +53%, better
Sensitivity97.1 dB −1.9
REDCATT123FPM
No current priceFs45 Hz −10%, better
Qts0.27 –
Vas98.5 L −11%, better
BL12.8 T·m −11%, worse
Xmax2.8 mm −31%, worse
Sensitivity96.9 dB −2.1, worse
BMS12S302
No current priceFs45 Hz −10%, better
Qts0.25 −6%
Vas65 L −41%, better
BL15.7 T·m +9%
Xmax4.5 mm +13%, better
Sensitivity95.5 dB −3.5, worse
MonacorSP-12/200PA
No current priceFs45 Hz −10%, better
Qts0.33 +22%, worse
Vas114 L –
BL15.4 T·m +7%
Xmax4 mm –
Sensitivity96.8 dB −2.2, worse
CelestionFTR12-4075F
No current priceFs37 Hz −26%, better
Qts0.27 –
Vas89.2 L −20%, better
BL12.6 T·m −13%, worse
Xmax9 mm +125%, better
Sensitivity94 dB −5, worse
EminenceLEGEND EM12
No current priceFs49 Hz –
Qts0.28 +4%
Vas102.3 L −8%
BL16.9 T·m +17%, better
Xmax1.3 mm −68%, worse
Sensitivity98.2 dB −0.8
Oberton12L300
No current priceFs54 Hz +8%
Qts0.25 −6%
Vas79.6 L −28%, better
BL16.8 T·m +17%, better
Xmax3.3 mm −19%, worse
Sensitivity98.8 dB –
Acoustic EleganceTD12M-4
No current priceFs38 Hz −24%, better
Qts0.25 −7%
Vas140 L +26%, worse
BL11.9 T·m −17%, worse
Xmax6 mm +50%, better
Sensitivity96.3 dB −2.7, worse
Acoustic EleganceTD12M-8
No current priceFs38 Hz −24%, better
Qts0.25 −7%
Vas140 L +26%, worse
BL17 T·m +18%, better
Xmax6 mm +50%, better
Sensitivity96.6 dB −2.4, worse
Oberton12H4CX72
No current priceFs50 Hz –
Qts0.25 −7%
Vas74.7 L −33%, better
BL19.9 T·m +38%, better
Xmax4.5 mm +13%, better
Sensitivity97.6 dB −1.4
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Business | £230.40, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £230.40 | Back order | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr