- Net volume
- 70L
- Tuning
- 45Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
15-inch LF driver · 600 W
Eighteen Sound 15ND940 4Ω
38–3500 Hz
No price for delivery to the UK
- Fs
- 39Hz
- Xmax
- 9.5mm
- SPL
- 98dB
- Pe
- 600W
- BL
- 16.6T·m
- Vd
- 837cm³
- Qts
- 0.26
- Vas
- 170L
Published graphs
Eighteen Sound 15ND940 is a 15-inch 4 ohm LF driver rated at 600 W RMS. The validated T/S data includes Fs 39 Hz, Qts 0.26, Vas 170 L, Xmax 9.5 mm, sensitivity 97.8 dB, plus 837 cm³ Vd and 144 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 39Hz
- Qts
- 0.26
- Qes
- 0.27
- Qms
- 9.1
- Vas
- 170L
- Re
- 2.8Ω
- Le
- 0.39mH
Motor and cone
- BL
- 16.6T·m
- Sd
- 881cm²
- Mms
- 110g
- Xmax
- 9.5mm
- Vd †
- 837cm³
Power and response
- Sensitivity †
- 97.8dB
- Manufacturer sensitivity
- 99dB
- Power
- 600W
- Nominal power
- 600W
- Impedance
- 4Ω
- Range
- 38–3500Hz
- EBP †
- 144 · Leans vented
Size and mounting
- Diameter
- 392mm
- Cutout
- 354mm
- Bolt circle
- 371mm
- Depth
- 184mm
- Weight
- 4.7kg
Other published values
- Power Program
- 1200
Sensitivity shows 97.8 dB, calculated from the T/S values. Eighteen Sound publishes 99.0 dB, 1.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 15″
- BL
- 16.6T·m
- Fs
- 39Hz
- Le
- 0.39mH
- Re
- 2.8Ω
- Sd
- 881cm²
- Mms
- 110g
- Qes
- 0.27
- Qms
- 9.1
- Qts
- 0.26
- SPL
- 97.8dB
- Vas
- 170L
- Xmax
- 9.5mm
- Power
- 600W
- Impedance
- 4Ω
- Sensitivity
- 99dB
- Low limit
- 38Hz
- Nominal power
- 600W
- Power Program
- 1200
- Calculated sensitivity †
- 97.8dB
- High limit
- 3500Hz
- Manufacturer sensitivity
- 99dB
- Weight
- 4.7kg
- Diameter
- 392mm
- Depth
- 184mm
- Cutout
- 354mm
- Bolt circle
- 371mm
02
Designs
What Eighteen Sound suggests for the 15ND940. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 15ND940 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 15ND940. Clear differences are green when better and red when worse.
This driver15ND940
Best price
–
Fs
39 Hz
Qts
0.26
Vas
170 L
BL
16.6 T·m
Xmax
9.5 mm
Sensitivity
97.8 dB
Power
600 W
B&C15CL76
£124.79Fs42 Hz +8%
Qts0.25 −4%
Vas140 L −18%, better
BL19.1 T·m +15%, better
Xmax7 mm −26%, worse
Sensitivity97.9 dB –
Eighteen Sound15W700
£177.18Fs41 Hz +5%
Qts0.27 +4%
Vas180 L +6%
BL14.7 T·m −11%, worse
Xmax6.5 mm −32%, worse
Sensitivity98.3 dB +0.5
B&C15PS76
£183.00Fs38 Hz –
Qts0.26 –
Vas164 L −4%
BL22.1 T·m +33%, better
Xmax7.5 mm −21%, worse
Sensitivity97.1 dB −0.7
FaitalPRO15FH510
£198.91Fs35 Hz −10%, better
Qts0.26 –
Vas191.8 L +13%, worse
BL21 T·m +27%, better
Xmax9.3 mm –
Sensitivity96.9 dB −0.9
FaitalPRO15FH500
£213.12Fs33 Hz −15%, better
Qts0.28 +8%
Vas209.5 L +23%, worse
BL16.2 T·m –
Xmax9.4 mm –
Sensitivity96.2 dB −1.6
RCFL15P400
£214.72Fs36 Hz −8%
Qts0.25 −4%
Vas160 L −6%
BL24.8 T·m +49%, better
Xmax8 mm −16%, worse
Sensitivity96.4 dB −1.4
Dayton Audio15LF500-8
£217.26Fs26 Hz −35%, better
Qts0.26 –
Vas331.3 L +95%, worse
BL21.1 T·m +27%, better
Xmax9.3 mm –
Sensitivity95.1 dB −2.7, worse
B&C15TBX100
£227.33Fs34 Hz −13%, better
Qts0.27 +4%
Vas129.6 L −24%, better
BL22.1 T·m +33%, better
Xmax9 mm −5%
Sensitivity94.6 dB −3.2, worse
Eighteen Sound15ND930
£233.35Fs35 Hz −10%, better
Qts0.24 −8%
Vas182 L +7%
BL17 T·m –
Xmax7.5 mm −21%, worse
Sensitivity97.1 dB −0.7
RCFLF15G401
£238.26Fs36 Hz −8%
Qts0.26 –
Vas150 L −12%, better
BL24.6 T·m +48%, better
Xmax9 mm −5%
Sensitivity96.2 dB −1.6
B&C15NDL88
£244.00Fs41 Hz +5%
Qts0.28 +8%
Vas154 L −9%
BL16.5 T·m –
Xmax8 mm −16%, worse
Sensitivity97.7 dB –
FaitalPRO15FX560
£245.00Fs38 Hz –
Qts0.30 +15%, worse
Vas159 L −6%
BL21.5 T·m +30%, better
Xmax9.4 mm –
Sensitivity96.5 dB −1.3
Eighteen Sound15LW1401
£254.65Fs39 Hz –
Qts0.26 –
Vas127 L −25%, better
BL22 T·m +33%, better
Xmax9 mm −5%
Sensitivity96.5 dB −1.3
Eighteen Sound15LW2400
£254.95Fs34 Hz −13%, better
Qts0.23 −12%, better
Vas191 L +12%, worse
BL18 T·m +8%
Xmax9.5 mm –
Sensitivity97 dB −0.8
FaitalPRO15HP1020
£263.08Fs40 Hz –
Qts0.27 +4%
Vas126.6 L −26%, better
BL24.2 T·m +46%, better
Xmax9 mm −5%
Sensitivity96.6 dB −1.2
Eighteen Sound15NLW9401
£288.50Fs40 Hz –
Qts0.25 −4%
Vas114 L −33%, better
BL20 T·m +20%, better
Xmax10 mm +5%
Sensitivity96.5 dB −1.3
Eighteen Sound15LW1500
£313.00Fs34 Hz −13%, better
Qts0.28 +8%
Vas195 L +15%, worse
BL22.1 T·m +33%, better
Xmax9 mm −5%
Sensitivity96.2 dB −1.6
Eighteen Sound15NLW9300
£315.00Fs39 Hz –
Qts0.26 –
Vas170 L –
BL24.4 T·m +47%, better
Xmax8 mm −16%, worse
Sensitivity97.8 dB –
Eighteen Sound15NLW9500
£376.10Fs34 Hz −13%, better
Qts0.29 +12%, worse
Vas147.5 L −13%, better
BL18.2 T·m +10%
Xmax9 mm −5%
Sensitivity94.9 dB −2.9, worse
FaitalPRO15HX500
£425.41Fs40 Hz –
Qts0.28 +8%
Vas150.1 L −12%, better
BL22.2 T·m +34%, better
Xmax9.4 mm –
Sensitivity97.2 dB −0.6
Scanspeak38WE/8582T00
£1,170.04Fs26 Hz −33%, better
Qts0.24 −8%
Vas423 L +149%, worse
BL18.7 T·m +13%, better
Xmax10.2 mm +7%
Sensitivity96.6 dB −1.2
CelestionFTR15-4080F
No current priceFs38 Hz –
Qts0.25 −4%
Vas163.1 L −4%
BL23.5 T·m +42%, better
Xmax8.5 mm −11%, worse
Sensitivity97.2 dB −0.6
No photo
PHL Audio6301MND
No current priceFs36 Hz −8%
Qts0.26 –
Vas140 L −18%, better
BL25.5 T·m +54%, better
Xmax10.5 mm +11%, better
Sensitivity95.7 dB −2.1, worse
No photo
PHL Audio5011MNDU
No current priceFs38 Hz –
Qts0.26 –
Vas169 L –
BL23.7 T·m +43%, better
Xmax7.5 mm −21%, worse
Sensitivity97.2 dB −0.6
CelestionFTR15-4080FD
No current priceFs35 Hz −9%
Qts0.28 +7%
Vas164.3 L −3%
BL23.1 T·m +39%, better
Xmax8.5 mm −11%, worse
Sensitivity95.9 dB −1.9
Oberton15MB701
No current priceFs44 Hz +13%, worse
Qts0.27 +3%
Vas100.2 L −41%, better
BL26.1 T·m +57%, better
Xmax9.3 mm –
Sensitivity97 dB −0.8
BMS15N830V2
No current priceFs37 Hz −5%
Qts0.27 +4%
Vas159 L −6%
BL22.4 T·m +35%, better
Xmax8 mm −16%, worse
Sensitivity96.5 dB −1.3
Eighteen Sound15MB650
No current priceFs40 Hz –
Qts0.26 –
Vas210 L +24%, worse
BL20 T·m +20%, better
Xmax4 mm −58%, worse
Sensitivity99 dB +1.2
No photo
PHL Audio6201MND
No current priceFs36 Hz −8%
Qts0.27 +4%
Vas140 L −18%, better
BL25 T·m +51%, better
Xmax10.5 mm +11%, better
Sensitivity95.6 dB −2.2, worse
BMS15S430V2
No current priceFs40 Hz –
Qts0.26 –
Vas135 L −21%, better
BL25.0 T·m +50%, better
Xmax7.5 mm −21%, worse
Sensitivity97 dB −0.8
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
None of the shops we track lists delivery to the UK at checkout.