Eighteen Sound design
18’’ horn loaded subwoofer
- Drivers
- 18TLW3000or 18LW2500or 18LW2400
18-inch LF driver · 1,200 W
Eighteen Sound 18LW2400 8Ω
31–2500 Hz
£272.63
SteadyLean Business · All 5 offers
- Fs
- 35Hz
- Xmax
- 9.5mm
- SPL
- 97dB
- Pe
- 1200W
- BL
- 25.6T·m
- Vd
- 1164cm³
- Qts
- 0.31
- Vas
- 230L
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 confidence2,598 selected pixels of 2,643
Published graphs
Eighteen Sound 18LW2400 is an 18-inch 8 ohm LF driver rated at 1200 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.31, Vas 230 L, Xmax 9.5 mm, sensitivity 96.9 dB, plus 1164 cm³ Vd and 109 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 £272.63.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.31
- Qes
- 0.32
- Qms
- 7.2
- Vas
- 230L
- Re
- 5Ω
- Le
- 1.35mH
Motor and cone
- BL
- 25.6T·m
- Sd
- 1225cm²
- Mms
- 192g
- Xmax
- 9.5mm
- Vd †
- 1164cm³
Power and response
- Sensitivity †
- 96.9dB
- Manufacturer sensitivity
- 98dB
- Power
- 1200W
- Nominal power
- 1200W
- Impedance
- 8Ω
- Range
- 31–2500Hz
- EBP †
- 109 · Leans vented
Size and mounting
- Diameter
- 462mm
- Cutout
- 416mm
- Bolt circle
- 438mm
- Depth
- 214mm
- Weight
- 12.8kg
Other published values
- Power Program
- 2400
Sensitivity shows 96.9 dB, calculated from the T/S values. Eighteen Sound publishes 98.0 dB, 1.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 18″
- BL
- 25.6T·m
- Fs
- 35Hz
- Le
- 1.35mH
- Re
- 5Ω
- Sd
- 1225cm²
- Mms
- 192g
- Qes
- 0.32
- Qms
- 7.2
- Qts
- 0.31
- SPL
- 96.9dB
- Vas
- 230L
- Xmax
- 9.5mm
- Power
- 1200W
- Impedance
- 8Ω
- Sensitivity
- 98dB
- Low limit
- 31Hz
- Nominal power
- 1200W
- Power Program
- 2400
- Calculated sensitivity †
- 96.9dB
- High limit
- 2500Hz
- Manufacturer sensitivity
- 98dB
- Weight
- 12.8kg
- Diameter
- 462mm
- Depth
- 214mm
- Cutout
- 416mm
- Bolt circle
- 438mm
02
Designs
Cabinets for the 18LW2400: two designs and a suggested box from Eighteen Sound.
All 18LW2400 designsHow we find designsEighteen Sound’s designs
From the maker, with plans to download
Eighteen Sound design
Single 18” subwoofer
- Drivers
- 18TLW3000or 18LW2500or 18NLW4000or 18LW2400or 18LW1400
Eighteen Sound’s suggested box
From Eighteen Sound’s 18LW2400 page
- Net volume
- 220L
- Tuning
- 37Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 18LW2400. Clear differences are green when better and red when worse.
This driver18LW2400
Best price
£272.63
Fs
35 Hz
Qts
0.31
Vas
230 L
BL
25.6 T·m
Xmax
9.5 mm
Sensitivity
96.9 dB
Power
1200 W
B&C18TBX100
£184.81 · 32% less, betterFs34 Hz –
Qts0.35 +13%, worse
Vas212 L −8%
BL25.5 T·m –
Xmax9 mm −5%
Sensitivity95.6 dB −1.3
RCFL18P300
£225.00 · 17% less, betterFs33 Hz −6%
Qts0.33 +6%
Vas226 L –
BL23.5 T·m −8%
Xmax8 mm −16%, worse
Sensitivity95.8 dB −1.1
B&C18RBX100
£226.58 · 17% less, betterFs40 Hz +14%, worse
Qts0.34 +10%
Vas220 L −4%
BL25.1 T·m –
Xmax10 mm +5%
Sensitivity98 dB +1.1
Beyma18P1000FEV2S
£249.00 · 9% less, betterFs33 Hz −6%
Qts0.32 +3%
Vas230 L –
BL26.8 T·m +5%
Xmax8 mm −16%, worse
Sensitivity96 dB −0.9
RCFLF18G401
£252.42 · 7% less, betterFs33 Hz −6%
Qts0.29 −6%
Vas268 L +17%, worse
BL24.6 T·m −4%
Xmax9 mm −5%
Sensitivity97.1 dB –
FaitalPRO18HP1022
£266.26 · 2% lessFs35 Hz –
Qts0.30 −3%
Vas204.9 L −11%, better
BL28 T·m +9%
Xmax9.5 mm –
Sensitivity96.6 dB –
Beyma18PW1400FE
£273.68 · Same priceFs32 Hz −9%
Qts0.27 −13%, better
Vas228.9 L –
BL29 T·m +13%, better
Xmax10 mm +5%
Sensitivity96.3 dB −0.6
Eighteen Sound18LW1400
£274.64 · Same priceFs31 Hz −11%, better
Qts0.29 −6%
Vas297 L +29%, worse
BL24.7 T·m −4%
Xmax9 mm −5%
Sensitivity96.6 dB –
Eighteen Sound18LW2420
£279.00 · 2% moreFs32 Hz −9%
Qts0.33 +6%
Vas252 L +10%
BL25.3 T·m –
Xmax10 mm +5%
Sensitivity95.8 dB −1.1
Beyma18LEX1200ND
£279.79 · 3% moreFs36 Hz –
Qts0.33 +6%
Vas219 L −5%
BL26.4 T·m +3%
Xmax11 mm +16%, better
Sensitivity96.7 dB –
Oberton18XB1301DS
£284.15 · 4% moreFs36 Hz –
Qts0.30 –
Vas172.9 L −25%, better
BL26.9 T·m +5%
Xmax12 mm +26%, better
Sensitivity96 dB −0.9
RCFLF18X401
£289.00 · 6% more, worseFs30 Hz −14%, better
Qts0.30 −3%
Vas274 L +19%, worse
BL26.5 T·m +4%
Xmax12 mm +26%, better
Sensitivity95.8 dB −1.1
CIARENDH18-4S
£291.62 · 7% more, worseFs31 Hz −11%, better
Qts0.32 +3%
Vas239 L +4%
BL27.7 T·m +8%
Xmax11.5 mm +21%, better
Sensitivity95.4 dB −1.5
Dayton Audio18SW1200N-8
£301.39 · 11% more, worseFs32 Hz −9%
Qts0.33 +6%
Vas253.6 L +10%, worse
BL27.6 T·m +8%
Xmax9.1 mm −4%
Sensitivity95.8 dB −1.1
Eighteen Sound18NLW9400
£305.62 · 12% more, worseFs33 Hz −6%
Qts0.26 −16%, better
Vas268 L +17%, worse
BL26 T·m –
Xmax9.5 mm –
Sensitivity97.4 dB +0.5
RCFLF18N405
£325.54 · 19% more, worseFs30 Hz −14%, better
Qts0.32 +3%
Vas227 L –
BL26.5 T·m +4%
Xmax14 mm +47%, better
Sensitivity94.6 dB −2.3, worse
BMS18S450
£345.00 · 27% more, worseFs29 Hz −17%, better
Qts0.31 –
Vas281 L +22%, worse
BL26.5 T·m +4%
Xmax12 mm +26%, better
Sensitivity95.3 dB −1.6
BMS18N850V2
£457.13 · 68% more, worseFs30 Hz −15%, better
Qts0.33 +6%
Vas243 L +6%
BL25.4 T·m –
Xmax12 mm +26%, better
Sensitivity94.7 dB −2.2, worse
Eighteen Sound18NLW9000
£550.00 · 102% more, worseFs34 Hz –
Qts0.31 –
Vas206 L −10%, better
BL28 T·m +9%
Xmax14 mm +47%, better
Sensitivity96.1 dB −0.8
Oberton18XB700
No current priceFs36 Hz +3%
Qts0.30 –
Vas183.2 L −20%, better
BL26.1 T·m –
Xmax9 mm −5%
Sensitivity96.4 dB −0.5
FaneCOLOSSUS 18-800N
No current priceFs38 Hz +9%
Qts0.31 –
Vas217 L −6%
BL24 T·m −6%
Xmax8 mm −16%, worse
Sensitivity97.7 dB +0.8
RCFLF18G908
No current priceFs33 Hz −6%
Qts0.29 −6%
Vas268 L +17%, worse
BL24.6 T·m −4%
Xmax9 mm −5%
Sensitivity97.1 dB –
Oberton18NXB700
No current priceFs36 Hz +4%
Qts0.31 –
Vas155.5 L −32%, better
BL27.8 T·m +9%
Xmax9 mm −5%
Sensitivity95.6 dB −1.3
Oberton18XB1201
No current priceFs38 Hz +9%
Qts0.32 –
Vas159.4 L −31%, better
BL26.7 T·m +4%
Xmax10.5 mm +11%, better
Sensitivity96.3 dB −0.6
Oberton18B500
No current priceFs35 Hz –
Qts0.28 −11%, better
Vas243.9 L +6%
BL24.1 T·m −6%
Xmax8.8 mm −8%
Sensitivity97.7 dB +0.8
Oberton18FBR700
No current priceFs36 Hz –
Qts0.27 −13%, better
Vas231.3 L –
BL25.2 T·m –
Xmax8 mm −16%, worse
Sensitivity97.8 dB +0.9
FaneCOLOSSUS 18XB
No current priceFs33 Hz −6%
Qts0.34 +9%
Vas236 L –
BL25.9 T·m –
Xmax7.5 mm −21%, worse
Sensitivity95.8 dB −1.1
Eighteen Sound18LW1251
No current priceFs35 Hz –
Qts0.27 −13%, better
Vas268 L +17%, worse
BL23.6 T·m −8%
Xmax9 mm −5%
Sensitivity98.2 dB +1.3
No photo
RCFLF18Y402
No current priceFs30 Hz −14%, better
Qts0.30 −3%
Vas274 L +19%, worse
BL26.5 T·m +4%
Xmax12 mm +26%, better
Sensitivity95.8 dB −1.1
Precision DevicesPD.184C002
No current priceFs40 Hz +14%, worse
Qts0.34 +10%
Vas268 L +17%, worse
BL21 T·m −18%, worse
Xmax9.7 mm –
Sensitivity98.8 dB +1.9
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Thomann4.8 out of 520 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 | £272.63, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £272.63 | Back order | Visit shop at Lean Audio | |
Thomann | £325.00 | 19% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 3 OctThomann£329.00 → £325.00Down 1.2% from £329.00
- 31 JulThomann£325.00 → £329.00Up 1.2% from £325.00
- 23 JulThomann£329.00 → £325.00Down 1.2% from £329.00