- Net volume
- 100L
- Tuning
- 50Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
15-inch LF driver · 400 W
Eighteen Sound 15ND730 8Ω
8 Ω · 44–4000 Hz
No price for delivery to the UK
- Fs
- 44Hz
- Xmax
- 6.5mm
- SPL
- 99dB
- Pe
- 400W
- BL
- 21T·m
- Vd
- 585cm³
- Qts
- 0.29
- Vas
- 156L
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 2 traces
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 confidence3,359 selected pixels of 3,679 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,599 selected pixels of 1,711
Published graphs
Eighteen Sound 15ND730 is a 15-inch 8 ohm LF driver rated at 400 W RMS. The validated T/S data includes Fs 44 Hz, Qts 0.29, Vas 156 L, Xmax 6.5 mm, sensitivity 98.5 dB, plus 585 cm³ Vd and 147 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
- 44Hz
- Qts
- 0.29
- Qes
- 0.30
- Qms
- 8.1
- Vas
- 156L
- Re
- 5.5Ω
- Le
- 1.35mH
Motor and cone
- BL
- 21T·m
- Sd
- 900cm²
- Mms
- 86g
- Xmax
- 6.5mm
- Vd †
- 585cm³
Power and response
- Sensitivity †
- 98.5dB
- Manufacturer sensitivity
- 99dB
- Power
- 400W
- Nominal power
- 400W
- Impedance
- 8Ω
- Range
- 44–4000Hz
- EBP †
- 147 · Leans vented
Size and mounting
- Diameter
- 387mm
- Cutout
- 353mm
- Bolt circle
- 370mm
- Depth
- 169mm
- Weight
- 3.9kg
Other published values
- Power Program
- 600
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 15″
- BL
- 21T·m
- Fs
- 44Hz
- Le
- 1.35mH
- Re
- 5.5Ω
- Sd
- 900cm²
- Mms
- 86g
- Qes
- 0.30
- Qms
- 8.1
- Qts
- 0.29
- SPL
- 98.5dB
- Vas
- 156L
- Xmax
- 6.5mm
- Power
- 400W
- Impedance
- 8Ω
- Sensitivity
- 99dB
- Low limit
- 44Hz
- Nominal power
- 400W
- Power Program
- 600
- Calculated sensitivity †
- 98.5dB
- High limit
- 4000Hz
- Manufacturer sensitivity
- 99dB
- Weight
- 3.9kg
- Diameter
- 387mm
- Depth
- 169mm
- Cutout
- 353mm
- Bolt circle
- 370mm
02
Designs
What Eighteen Sound suggests for the 15ND730. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 15ND730 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 15ND730. Clear differences are green when better and red when worse.
This driver15ND730
Best price
–
Fs
44 Hz
Qts
0.29
Vas
156 L
BL
21 T·m
Xmax
6.5 mm
Sensitivity
98.5 dB
Power
400 W
CelestionTF1530
£118.90Fs42 Hz −5%
Qts0.28 −3%
Vas162.2 L +4%
BL21.2 T·m –
Xmax4 mm −38%, worse
Sensitivity97.9 dB −0.6
B&C15CL76
£127.74Fs42 Hz −5%
Qts0.33 +14%, worse
Vas135 L −13%, better
BL21 T·m –
Xmax7 mm +8%
Sensitivity96.7 dB −1.8
Beyma15WR400
£165.43Fs36 Hz −18%, better
Qts0.30 +3%
Vas236 L +51%, worse
BL19.2 T·m −9%
Xmax6.3 mm −3%
Sensitivity97.5 dB −1
EminenceKAPPA PRO-15LF
£166.34Fs35 Hz −20%, better
Qts0.30 +3%
Vas198.8 L +27%, worse
BL21.6 T·m –
Xmax6.7 mm +3%
Sensitivity96.3 dB −2.2, worse
B&C15CLA76
£170.21Fs40 Hz −9%
Qts0.30 +3%
Vas176 L +13%, worse
BL19.8 T·m −6%
Xmax5.5 mm −15%, worse
Sensitivity97.6 dB −0.9
Eighteen Sound15W700
£177.51Fs38 Hz −14%, better
Qts0.30 +3%
Vas217 L +39%, worse
BL18.4 T·m −12%, worse
Xmax6.5 mm –
Sensitivity97.6 dB −0.9
B&C15PS76
£184.00Fs38 Hz −14%, better
Qts0.26 −10%, better
Vas164 L +5%
BL22.1 T·m +5%
Xmax7.5 mm +15%, better
Sensitivity97.1 dB −1.4
Beyma14MC700ND
£229.73Fs51 Hz +16%, worse
Qts0.28 −3%
Vas78 L −50%, better
BL22 T·m +5%
Xmax7 mm +8%
Sensitivity97.4 dB −1.1
FaitalPRO15FX560
£245.00Fs38 Hz −14%, better
Qts0.30 +3%
Vas159 L –
BL21.5 T·m –
Xmax9.4 mm +45%, better
Sensitivity96.5 dB −2, worse
Eighteen Sound15MB1000
£259.50Fs48 Hz +9%
Qts0.31 +7%
Vas132.5 L −15%, better
BL21 T·m –
Xmax6 mm −8%
Sensitivity98.6 dB –
Sica15 K 3 PL
£272.13Fs40 Hz −9%
Qts0.27 −7%
Vas166.1 L +6%
BL21.4 T·m –
Xmax6.5 mm –
Sensitivity97.8 dB −0.7
FaitalPRO15HX500
£426.19Fs40 Hz −9%
Qts0.28 −3%
Vas150.1 L −4%
BL22.2 T·m +6%
Xmax9.4 mm +45%, better
Sensitivity97.2 dB −1.3
FaneCOLOSSUS 15SB
No current priceFs41 Hz −7%
Qts0.29 –
Vas151 L −3%
BL22.5 T·m +7%
Xmax6.5 mm –
Sensitivity97.4 dB −1.1
Eighteen Sound15W600
No current priceFs38 Hz −14%, better
Qts0.29 –
Vas183 L +17%, worse
BL20.5 T·m –
Xmax6.5 mm –
Sensitivity97.3 dB −1.2
Oberton15B450 / 15B450A / 15B450A2
No current priceFs45 Hz –
Qts0.29 –
Vas146.8 L −6%
BL20.4 T·m –
Xmax6.8 mm +4%
Sensitivity98.6 dB –
CelestionFTX1530
No current priceFs43 Hz −3%
Qts0.28 −5%
Vas172.1 L +10%, worse
BL20.2 T·m −4%
Xmax6 mm −8%
Sensitivity98.5 dB –
Eighteen Sound15NMB420
No current priceFs42 Hz −5%
Qts0.29 –
Vas225 L +44%, worse
BL19 T·m −10%
Xmax6.5 mm –
Sensitivity99.5 dB +1
Oberton15NMB500
No current priceFs45 Hz –
Qts0.29 –
Vas128.0 L −18%, better
BL21.3 T·m –
Xmax7.8 mm +19%, better
Sensitivity97.9 dB −0.6
No photo
PHL Audio5021M
No current priceFs32 Hz −27%, better
Qts0.30 +3%
Vas169 L +8%
BL24 T·m +14%, better
Xmax7 mm +8%
Sensitivity94.4 dB −4.1, worse
Eighteen Sound15NTLW2500
No current priceFs45 Hz –
Qts0.30 +3%
Vas143 L −8%
BL21.2 T·m –
Xmax8 mm +23%, better
Sensitivity98.3 dB –
Oberton15B500
No current priceFs38 Hz −13%, better
Qts0.27 −8%
Vas145.8 L −7%
BL22.9 T·m +9%
Xmax7.3 mm +12%, better
Sensitivity96.8 dB −1.7
BMS15N830V2
No current priceFs37 Hz −16%, better
Qts0.27 −7%
Vas159 L –
BL22.4 T·m +7%
Xmax8 mm +23%, better
Sensitivity96.5 dB −2, worse
RCFMB15N405
No current priceFs46 Hz +5%
Qts0.27 −7%
Vas124 L −21%, better
BL23.5 T·m +12%, better
Xmax7 mm +8%
Sensitivity98.4 dB –
Oberton15NB451
No current priceFs40 Hz −10%, better
Qts0.26 −11%, better
Vas145.2 L −7%
BL22.9 T·m +9%
Xmax7 mm +8%
Sensitivity97.4 dB −1.1
CelestionNTR15-3018E
No current priceFs35 Hz −21%, better
Qts0.28 –
Vas207.3 L +33%, worse
BL21.1 T·m –
Xmax5 mm −23%, worse
Sensitivity96.7 dB −1.8
Beyma15XA38ND
No current priceFs38 Hz −14%, better
Qts0.30 +3%
Vas238 L +53%, worse
BL20.4 T·m –
Xmax6 mm −8%
Sensitivity98.3 dB –
RCFMB15X351
No current priceFs46 Hz +5%
Qts0.31 +7%
Vas114 L −27%, better
BL22.8 T·m +9%
Xmax7 mm +8%
Sensitivity97.3 dB −1.2
Oberton15NSW600
No current priceFs37 Hz −17%, better
Qts0.29 –
Vas148.4 L −5%
BL23.4 T·m +11%, better
Xmax14.3 mm +119%, better
Sensitivity95.8 dB −2.7, worse
FaneCOLOSSUS 15XB
No current priceFs38 Hz −14%, better
Qts0.32 +10%, worse
Vas168 L +8%
BL22.1 T·m +5%
Xmax7.5 mm +15%, better
Sensitivity96.4 dB −2.1, worse
Eighteen Sound15ND940
No current priceFs38 Hz −14%, better
Qts0.28 −3%
Vas174 L +12%, worse
BL21.9 T·m +4%
Xmax9.5 mm +46%, better
Sensitivity97.2 dB −1.3
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 Audio | £222.39 | Back order | Visit shop at Lean Audio |