- Net volume
- 110L
- Tuning
- 40Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
15-inch LF driver · 500 W
Eighteen Sound 15ND930 8Ω
40–4100 Hz
- Fs
- 36Hz
- Xmax
- 7.5mm
- SPL
- 98dB
- Pe
- 500W
- BL
- 23.8T·m
- Vd
- 638cm³
- Qts
- 0.22
- Vas
- 206L
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
frequency response
Frequency response
240 plotted pointsMedium confidence7,430 selected pixels of 7,430
Published graphs
Eighteen Sound 15ND930 is a 15-inch 8 ohm LF driver rated at 500 W RMS. The validated T/S data includes Fs 36 Hz, Qts 0.22, Vas 206 L, Xmax 7.5 mm, sensitivity 98.2 dB, plus 638 cm³ Vd and 157 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 £266.78.
The published T/S values agree with each other
Thiele/Small
- Fs
- 36Hz
- Qts
- 0.22
- Qes
- 0.23
- Qms
- 5.3
- Vas
- 206L
- Re
- 5.5Ω
- Le
- 1.61mH
Motor and cone
- BL
- 23.8T·m
- Sd
- 850cm²
- Mms
- 101g
- Xmax
- 7.5mm
- Vd †
- 638cm³
Power and response
- Sensitivity †
- 98.2dB
- Manufacturer sensitivity
- 98dB
- Power
- 500W
- Nominal power
- 500W
- Impedance
- 8Ω
- Range
- 40–4100Hz
- EBP †
- 157 · Leans vented
Size and mounting
- Diameter
- 387mm
- Cutout
- 353mm
- Bolt circle
- 370mm
- Depth
- 177mm
- Weight
- 4.7kg
Other published values
- Power Program
- 800
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 15″
- BL
- 23.8T·m
- Fs
- 36Hz
- Le
- 1.61mH
- Re
- 5.5Ω
- Sd
- 850cm²
- Mms
- 101g
- Qes
- 0.23
- Qms
- 5.3
- Qts
- 0.22
- SPL
- 98.2dB
- Vas
- 206L
- Xmax
- 7.5mm
- Power
- 500W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 40Hz
- Nominal power
- 500W
- Power Program
- 800
- Calculated sensitivity †
- 98.2dB
- High limit
- 4100Hz
- Manufacturer sensitivity
- 98dB
- Weight
- 4.7kg
- Diameter
- 387mm
- Depth
- 177mm
- Cutout
- 353mm
- Bolt circle
- 370mm
02
Designs
What Eighteen Sound suggests for the 15ND930. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 15ND930 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 15ND930. Clear differences are green when better and red when worse.
This driver15ND930
Best price
£266.78
Fs
36 Hz
Qts
0.22
Vas
206 L
BL
23.8 T·m
Xmax
7.5 mm
Sensitivity
98.2 dB
Power
500 W
B&C15NDL76
£175.00 · 34% less, betterFs37 Hz –
Qts0.22 –
Vas195 L −5%
BL22.5 T·m −5%
Xmax7 mm −7%
Sensitivity98.2 dB –
B&C15FW76
£181.02 · 32% less, betterFs40 Hz +11%, worse
Qts0.21 −5%
Vas138 L −33%, better
BL26.2 T·m +10%, better
Xmax7 mm −7%
Sensitivity98.1 dB –
B&C15PS76
£184.00 · 31% less, betterFs38 Hz +6%
Qts0.26 +18%, worse
Vas164 L −20%, better
BL22.1 T·m −7%
Xmax7.5 mm –
Sensitivity97.1 dB −1.1
Eighteen Sound15W930
£193.05 · 28% less, betterFs33 Hz −8%
Qts0.22 –
Vas240 L +17%, worse
BL22.1 T·m −7%
Xmax7.5 mm –
Sensitivity97.8 dB –
B&C15PL100
£205.14 · 23% less, betterFs37 Hz –
Qts0.20 −9%
Vas154 L −25%, better
BL26.8 T·m +13%, better
Xmax7 mm −7%
Sensitivity97.7 dB −0.5
RCFL15P400
£214.72 · 20% less, betterFs36 Hz –
Qts0.25 +14%, worse
Vas160 L −22%, better
BL24.8 T·m +4%
Xmax8 mm +7%
Sensitivity96.4 dB −1.8
B&C15NW76
£233.82 · 12% less, betterFs42 Hz +17%, worse
Qts0.22 –
Vas130 L −37%, better
BL25.5 T·m +7%
Xmax8 mm +7%
Sensitivity98.2 dB –
B&C15NW100
£255.00 · 4% lessFs33 Hz −8%
Qts0.22 –
Vas139 L −33%, better
BL28 T·m +18%, better
Xmax9 mm +20%, better
Sensitivity95.4 dB −2.8, worse
Eighteen Sound15NMB1000
£285.89 · 7% more, worseFs46 Hz +28%, worse
Qts0.24 +9%
Vas124 L −40%, better
BL25.2 T·m +6%
Xmax6.5 mm −13%, worse
Sensitivity99 dB +0.8
CIARENDH15-4S
£289.95 · 9% more, worseFs28 Hz −22%, better
Qts0.25 +14%, worse
Vas220 L +7%
BL24.2 T·m –
Xmax11.5 mm +53%, better
Sensitivity94.7 dB −3.5, worse
RCFMB15N351
£297.00 · 11% more, worseFs42 Hz +17%, worse
Qts0.22 –
Vas191 L −7%
BL22.5 T·m −5%
Xmax6 mm −20%, worse
Sensitivity99.7 dB +1.5
Eighteen Sound15NLW9300
£315.00 · 18% more, worseFs39 Hz +8%
Qts0.26 +18%, worse
Vas170 L −17%, better
BL24.4 T·m –
Xmax8 mm +7%
Sensitivity97.8 dB –
Beyma15P80ND
£326.51 · 22% more, worseFs39 Hz +8%
Qts0.21 −5%
Vas184 L −11%, better
BL23.8 T·m –
Xmax7.5 mm –
Sensitivity99 dB +0.8
Beyma15MLEX1000ND
£328.81 · 23% more, worseFs38 Hz +6%
Qts0.21 −5%
Vas167 L −19%, better
BL26 T·m +9%
Xmax11 mm +47%, better
Sensitivity98.4 dB –
RCFLF15N401
£329.00 · 23% more, worseFs34 Hz −6%
Qts0.22 –
Vas160 L −22%, better
BL27.8 T·m +17%, better
Xmax9 mm +20%, better
Sensitivity96.4 dB −1.8
Precision DevicesPD.153C001
No current priceFs38 Hz +6%
Qts0.22 –
Vas196 L −5%
BL24.2 T·m –
Xmax7.7 mm –
Sensitivity98.7 dB +0.5
CelestionCF1540F
No current priceFs29 Hz −19%, better
Qts0.23 +7%
Vas227.9 L +11%, worse
BL23.1 T·m –
Xmax8.6 mm +15%, better
Sensitivity95.7 dB −2.5, worse
Precision DevicesPD.153ER/2
No current priceFs40 Hz +11%, worse
Qts0.21 −5%
Vas218.8 L +6%
BL22.4 T·m −6%
Xmax5.7 mm −24%, worse
Sensitivity100.1 dB +1.9
No photo
PHL Audio5011MNDU
No current priceFs38 Hz +6%
Qts0.26 +18%, worse
Vas169 L −18%, better
BL23.7 T·m –
Xmax7.5 mm –
Sensitivity97.2 dB −1
Oberton15XL600
No current priceFs41 Hz +14%, worse
Qts0.22 –
Vas150.3 L −27%, better
BL24.7 T·m +4%
Xmax5.3 mm −30%, worse
Sensitivity98.7 dB +0.5
Oberton15XL601
No current priceFs41 Hz +14%, worse
Qts0.22 –
Vas150.3 L −27%, better
BL24.7 T·m +4%
Xmax5.3 mm −30%, worse
Sensitivity98.7 dB +0.5
Oberton15PD600
No current priceFs38 Hz +6%
Qts0.23 +4%
Vas133.3 L −35%, better
BL28.7 T·m +21%, better
Xmax8.5 mm +13%, better
Sensitivity97.1 dB −1.1
Oberton15PD601
No current priceFs38 Hz +6%
Qts0.23 +4%
Vas133.3 L −35%, better
BL28.7 T·m +21%, better
Xmax8.5 mm +13%, better
Sensitivity97.1 dB −1.1
CelestionFTR15-4080F
No current priceFs38 Hz +6%
Qts0.25 +13%, worse
Vas163.1 L −21%, better
BL23.5 T·m –
Xmax8.5 mm +13%, better
Sensitivity97.2 dB −1
Oberton15NB500
No current priceFs43 Hz +19%, worse
Qts0.26 +16%, worse
Vas121.5 L −41%, better
BL24.3 T·m –
Xmax7.3 mm −3%
Sensitivity97.7 dB −0.5
Oberton15NB451
No current priceFs40 Hz +10%
Qts0.26 +17%, worse
Vas145.2 L −30%, better
BL22.9 T·m −4%
Xmax7 mm −7%
Sensitivity97.4 dB −0.8
BMS15S430V2
No current priceFs40 Hz +11%, worse
Qts0.26 +18%, worse
Vas135 L −34%, better
BL25.0 T·m +5%
Xmax7.5 mm –
Sensitivity97 dB −1.2
No photo
PHL Audio5241MNDU-7
No current priceFs45 Hz +25%, worse
Qts0.26 +18%, worse
Vas120.5 L −42%, better
BL24.3 T·m –
Xmax7.5 mm –
Sensitivity98 dB –
PeerlessFSL-1530R01-08
No current priceFs41 Hz +14%, worse
Qts0.24 +9%
Vas180 L −13%, better
BL21.8 T·m −8%
Xmax4.7 mm −38%, worse
Sensitivity99 dB +0.8
Oberton15B500
No current priceFs38 Hz +6%
Qts0.27 +22%, worse
Vas145.8 L −29%, better
BL22.9 T·m −4%
Xmax7.3 mm −3%
Sensitivity96.8 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
- Thomann4.9 out of 510 ratings · Checked 26 Oct 2026Read reviews on Thomann
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lean Business | £266.78, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £266.78 | 2 in stock | Visit shop at Lean Audio | |
Thomann | £308.00 | 16% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 19 OctThomann£309.00 → £308.00Down 0.3% from £309.00
- 11 OctThomann£311.00 → £309.00Down 0.6% from £311.00
- 3 OctThomann£314.00 → £311.00Down 1.0% from £314.00