- Net volume
- 120L
- Tuning
- 45Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
15-inch LF driver · 1,000 W
Eighteen Sound 15LW1401 8Ω
40–2400 Hz
- Fs
- 42Hz
- Xmax
- 9mm
- SPL
- 97dB
- Pe
- 1000W
- BL
- 24.2T·m
- Vd
- 765cm³
- Qts
- 0.27
- Vas
- 131L
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 confidence1,417 selected pixels of 1,472 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence3,155 selected pixels of 4,320
Published graphs
Eighteen Sound 15LW1401 is a 15-inch 8 ohm LF driver rated at 1000 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.27, Vas 131 L, Xmax 9 mm, sensitivity 97.4 dB, plus 765 cm³ Vd and 150 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 £254.65.
The published T/S values agree with each other
Thiele/Small
- Fs
- 42Hz
- Qts
- 0.27
- Qes
- 0.28
- Qms
- 5.4
- Vas
- 131L
- Re
- 5Ω
- Le
- 2.15mH
Motor and cone
- BL
- 24.2T·m
- Sd
- 850cm²
- Mms
- 125g
- Xmax
- 9mm
- Vd †
- 765cm³
Power and response
- Sensitivity †
- 97.4dB
- Manufacturer sensitivity
- 98dB
- Power
- 1000W
- Nominal power
- 1000W
- Impedance
- 8Ω
- Range
- 40–2400Hz
- EBP †
- 150 · Leans vented
Size and mounting
- Diameter
- 387mm
- Cutout
- 353mm
- Bolt circle
- 370mm
- Depth
- 163mm
- Weight
- 12.9kg
Other published values
- Power Program
- 1400
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 15″
- BL
- 24.2T·m
- Fs
- 42Hz
- Le
- 2.15mH
- Re
- 5Ω
- Sd
- 850cm²
- Mms
- 125g
- Qes
- 0.28
- Qms
- 5.4
- Qts
- 0.27
- SPL
- 97.4dB
- Vas
- 131L
- Xmax
- 9mm
- Power
- 1000W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 40Hz
- Nominal power
- 1000W
- Power Program
- 1400
- Calculated sensitivity †
- 97.4dB
- High limit
- 2400Hz
- Manufacturer sensitivity
- 98dB
- Weight
- 12.9kg
- Diameter
- 387mm
- Depth
- 163mm
- Cutout
- 353mm
- Bolt circle
- 370mm
02
Designs
What Eighteen Sound suggests for the 15LW1401. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 15LW1401 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 15LW1401. Clear differences are green when better and red when worse.
This driver15LW1401
Best price
£254.65
Fs
42 Hz
Qts
0.27
Vas
131 L
BL
24.2 T·m
Xmax
9 mm
Sensitivity
97.4 dB
Power
1000 W
B&C15TBX100
£225.00 · 12% less, betterFs35 Hz −17%, better
Qts0.28 +4%
Vas113 L −14%, better
BL25.5 T·m +5%
Xmax9 mm –
Sensitivity94.1 dB −3.3, worse
RCFLF15G401
£238.26 · 6% less, betterFs36 Hz −14%, better
Qts0.26 −4%
Vas150 L +15%, worse
BL24.6 T·m –
Xmax9 mm –
Sensitivity96.2 dB −1.2
Oberton15XB1000
£250.00 · 2% lessFs37 Hz −11%, better
Qts0.28 +5%
Vas111.0 L −15%, better
BL25.6 T·m +6%
Xmax9 mm –
Sensitivity94.9 dB −2.5, worse
Eighteen Sound15LW2400
£262.08 · 3% moreFs40 Hz −5%
Qts0.30 +11%, worse
Vas131 L –
BL24 T·m –
Xmax10 mm +11%, better
Sensitivity96.2 dB −1.2
FaitalPRO15HP1020
£263.08 · 3% moreFs40 Hz −5%
Qts0.27 –
Vas126.6 L −3%
BL24.2 T·m –
Xmax9 mm –
Sensitivity96.6 dB −0.8
B&C15NBX100
£267.25 · 5% moreFs36 Hz −14%, better
Qts0.29 +7%
Vas125 L −5%
BL25 T·m +3%
Xmax10 mm +11%, better
Sensitivity94.8 dB −2.6, worse
FaitalPRO15FX600
£283.85 · 11% more, worseFs38 Hz −10%
Qts0.27 –
Vas128.3 L –
BL23.2 T·m −4%
Xmax11.3 mm +25%, better
Sensitivity96 dB −1.4
Eighteen Sound15NLW9401
£288.50 · 13% more, worseFs39 Hz −7%
Qts0.26 −4%
Vas134 L –
BL25.4 T·m +5%
Xmax10 mm +11%, better
Sensitivity96.6 dB −0.8
Eighteen Sound15NLW9300
£315.00 · 24% more, worseFs39 Hz −7%
Qts0.26 −4%
Vas170 L +30%, worse
BL24.4 T·m –
Xmax8 mm −11%, worse
Sensitivity97.8 dB –
BMS15S435
£317.34 · 25% more, worseFs38 Hz −10%
Qts0.28 +4%
Vas129 L –
BL24.4 T·m –
Xmax8 mm −11%, worse
Sensitivity95.9 dB −1.5
FaitalPRO15HX500
£426.19 · 67% more, worseFs40 Hz −5%
Qts0.28 +4%
Vas150.1 L +15%, worse
BL22.2 T·m −8%
Xmax9.4 mm +4%
Sensitivity97.2 dB –
Oberton15XL700
No current priceFs45 Hz +8%
Qts0.28 +4%
Vas117.0 L −11%, better
BL23.1 T·m −5%
Xmax8.8 mm –
Sensitivity97.8 dB –
Oberton15XL701
No current priceFs45 Hz +8%
Qts0.28 +4%
Vas117.0 L −11%, better
BL23.1 T·m −5%
Xmax8.8 mm –
Sensitivity97.8 dB –
Oberton15XB700
No current priceFs37 Hz −11%, better
Qts0.28 +5%
Vas111.0 L −15%, better
BL25.6 T·m +6%
Xmax9 mm –
Sensitivity94.9 dB −2.5, worse
No current price
Fs45 Hz +7%
Qts0.27 –
Vas127 L −3%
BL24.5 T·m –
Xmax7.5 mm −17%, worse
Sensitivity98 dB +0.6
Oberton15MB701
No current priceFs44 Hz +5%
Qts0.27 –
Vas100.2 L −23%, better
BL26.1 T·m +8%
Xmax9.3 mm –
Sensitivity97 dB –
Oberton15NXB1000
No current priceFs38 Hz −9%
Qts0.28 +5%
Vas105.5 L −19%, better
BL26.0 T·m +7%
Xmax9 mm –
Sensitivity95.1 dB −2.3, worse
Oberton15NXB700
No current priceFs38 Hz −9%
Qts0.28 +5%
Vas105.5 L −19%, better
BL26.0 T·m +7%
Xmax9 mm –
Sensitivity95.1 dB −2.3, worse
No photo
PHL Audio5241MNDU-7
No current priceFs45 Hz +7%
Qts0.26 −4%
Vas120.5 L −8%
BL24.3 T·m –
Xmax7.5 mm −17%, worse
Sensitivity98 dB +0.6
No photo
PHL Audio6201MND
No current priceFs36 Hz −14%, better
Qts0.27 –
Vas140 L +7%
BL25 T·m +3%
Xmax10.5 mm +17%, better
Sensitivity95.6 dB −1.8
RCFMB15N405
No current priceFs46 Hz +10%
Qts0.27 –
Vas124 L −5%
BL23.5 T·m –
Xmax7 mm −22%, worse
Sensitivity98.4 dB +1
BMS15S430V2
No current priceFs40 Hz −5%
Qts0.26 −4%
Vas135 L +3%
BL25.0 T·m +3%
Xmax7.5 mm −17%, worse
Sensitivity97 dB –
No photo
PHL Audio6301MND
No current priceFs36 Hz −14%, better
Qts0.26 −4%
Vas140 L +7%
BL25.5 T·m +5%
Xmax10.5 mm +17%, better
Sensitivity95.7 dB −1.7
CelestionFTR15-4080FD
No current priceFs35 Hz −16%, better
Qts0.28 –
Vas164.3 L +25%, worse
BL23.1 T·m −5%
Xmax8.5 mm −6%
Sensitivity95.9 dB −1.5
BMS15N830V2
No current priceFs37 Hz −12%, better
Qts0.27 –
Vas159 L +21%, worse
BL22.4 T·m −7%
Xmax8 mm −11%, worse
Sensitivity96.5 dB −0.9
CelestionFTR15-4080F
No current priceFs38 Hz −10%
Qts0.25 −8%
Vas163.1 L +25%, worse
BL23.5 T·m –
Xmax8.5 mm −6%
Sensitivity97.2 dB –
Oberton15B500
No current priceFs38 Hz −9%
Qts0.27 –
Vas145.8 L +11%, worse
BL22.9 T·m −5%
Xmax7.3 mm −19%, worse
Sensitivity96.8 dB −0.6
Precision DevicesPD.1550/2
No current priceFs46 Hz +10%
Qts0.29 +7%
Vas126.4 L −4%
BL26.6 T·m +10%
Xmax8.2 mm −9%
Sensitivity98.2 dB +0.8
Oberton15NXL701
No current priceFs43 Hz +3%
Qts0.30 +11%, worse
Vas127.1 L –
BL21.7 T·m −10%, worse
Xmax9.3 mm –
Sensitivity97.3 dB –
Oberton15NB500
No current priceFs43 Hz –
Qts0.26 −6%
Vas121.5 L −7%
BL24.3 T·m –
Xmax7.3 mm −19%, worse
Sensitivity97.7 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann5.0 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 | £254.65, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £254.65 | 2 in stock | Visit shop at Lean Audio | |
Thomann | £298.00 | 17% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 19 OctThomann£299.00 → £298.00Down 0.3% from £299.00
- 17 SepThomann£304.00 → £299.00Down 1.6% from £304.00
- 9 SepThomann£299.00 → £304.00Up 1.7% from £299.00