Eighteen Sound design
High performance dual 18" subwoofer
- Drivers
- 2 × 18NTLW5000, 8 Ω
18-inch LF driver · 1,800 W
Eighteen Sound 18NTLW5000 8Ω
30–1800 Hz
£550.00
SteadyLean Audio · In stock · All 4 offers
- Fs
- 32Hz
- Xmax
- 17.5mm
- SPL
- 95dB
- Pe
- 1800W
- BL
- 31.3T·m
- Vd
- 2144cm³
- Qts
- 0.32
- Vas
- 176L
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 confidence4,936 selected pixels of 5,201
Published graphs
Eighteen Sound 18NTLW5000 is an 18-inch 8 ohm LF driver rated at 1800 W RMS. The validated T/S data includes Fs 32 Hz, Qts 0.32, Vas 176 L, Xmax 17.5 mm, sensitivity 94.5 dB, plus 2144 cm³ Vd and 97 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 £550.00.
The published T/S values agree with each other
Thiele/Small
- Fs
- 32Hz
- Qts
- 0.32
- Qes
- 0.33
- Qms
- 8.5
- Vas
- 176L
- Re
- 5.5Ω
- Le
- 1.85mH
Motor and cone
- BL
- 31.3T·m
- Sd
- 1225cm²
- Mms
- 295g
- Xmax
- 17.5mm
- Vd †
- 2144cm³
Power and response
- Sensitivity †
- 94.5dB
- Manufacturer sensitivity
- 95dB
- Power
- 1800W
- Nominal power
- 1800W
- Impedance
- 8Ω
- Range
- 30–1800Hz
- EBP †
- 97 · Sealed or vented
Size and mounting
- Diameter
- 462mm
- Cutout
- 416mm
- Bolt circle
- 440mm
- Depth
- 310mm
- Weight
- 12kg
Other published values
- Power Program
- 4000
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 18″
- BL
- 31.3T·m
- Fs
- 32Hz
- Le
- 1.85mH
- Re
- 5.5Ω
- Sd
- 1225cm²
- Mms
- 295g
- Qes
- 0.33
- Qms
- 8.5
- Qts
- 0.32
- SPL
- 94.5dB
- Vas
- 176L
- Xmax
- 17.5mm
- Power
- 1800W
- Impedance
- 8Ω
- Sensitivity
- 95dB
- Low limit
- 30Hz
- Nominal power
- 1800W
- Power Program
- 4000
- Calculated sensitivity †
- 94.5dB
- High limit
- 1800Hz
- Manufacturer sensitivity
- 95dB
- Weight
- 12kg
- Diameter
- 462mm
- Depth
- 310mm
- Cutout
- 416mm
- Bolt circle
- 440mm
02
Designs
Cabinets for the 18NTLW5000: a design and a suggested box from Eighteen Sound.
All 18NTLW5000 designsHow we find designsEighteen Sound’s design
From the maker, with plans to download
Eighteen Sound’s suggested box
From Eighteen Sound’s 18NTLW5000 page
- Net volume
- 180L
- Tuning
- 35Hz
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 18NTLW5000. Clear differences are green when better and red when worse.
This driver18NTLW5000
Best price
£550.00
Fs
32 Hz
Qts
0.32
Vas
176 L
BL
31.3 T·m
Xmax
17.5 mm
Sensitivity
94.5 dB
Power
1800 W
Oberton18XB1301DS
£284.15 · 48% less, betterFs36 Hz +12%, worse
Qts0.30 −6%
Vas172.9 L –
BL26.9 T·m −14%, worse
Xmax12 mm −31%, worse
Sensitivity96 dB +1.5
Eighteen Sound18LW2600
£297.25 · 46% less, betterFs31 Hz −3%
Qts0.29 −9%
Vas187 L +6%
BL31 T·m –
Xmax14.8 mm −15%, worse
Sensitivity94.7 dB –
FaitalPRO18HP1030
£300.59 · 45% less, betterFs35 Hz +9%
Qts0.32 –
Vas172.2 L –
BL21.7 T·m −31%, worse
Xmax12.4 mm −29%, worse
Sensitivity95.5 dB +1
RCFLF18N405
£325.54 · 41% less, betterFs30 Hz −6%
Qts0.32 –
Vas227 L +29%, worse
BL26.5 T·m −15%, worse
Xmax14 mm −20%, worse
Sensitivity94.6 dB –
SB AudienceNERO-18SW1100D
£334.88 · 39% less, betterFs36 Hz +13%, worse
Qts0.33 +3%
Vas153.1 L −13%, better
BL30.9 T·m –
Xmax12.2 mm −30%, worse
Sensitivity95.3 dB +0.8
B&C18DS100
£355.00 · 35% less, betterFs34 Hz +6%
Qts0.29 −9%
Vas155 L −12%, better
BL30 T·m −4%
Xmax14.5 mm −17%, worse
Sensitivity95.1 dB +0.6
Eighteen Sound18NLW4100
£371.77 · 32% less, betterFs31 Hz −3%
Qts0.34 +6%
Vas180 L –
BL29 T·m −7%
Xmax15 mm −14%, worse
Sensitivity93.9 dB −0.6
CelestionTSQ1845
£380.98 · 31% less, betterFs35 Hz +9%
Qts0.29 −9%
Vas119.3 L −32%, better
BL33.8 T·m +8%
Xmax15 mm −14%, worse
Sensitivity94.3 dB –
Precision DevicesPD.1852/2
£397.00 · 28% less, betterFs42 Hz +31%, worse
Qts0.33 +3%
Vas120.4 L −32%, better
BL30.5 T·m –
Xmax12 mm −31%, worse
Sensitivity96.2 dB +1.7
CelestionCF18VJD
£399.00 · 27% less, betterFs35 Hz +8%
Qts0.31 −3%
Vas145.8 L −17%, better
BL32.6 T·m +4%
Xmax12 mm −31%, worse
Sensitivity94.6 dB –
RCFLN19S400
£416.98 · 24% less, betterFs32 Hz –
Qts0.26 −19%, better
Vas204 L +16%, worse
BL32 T·m –
Xmax17 mm –
Sensitivity96 dB +1.5
FaitalPRO18XL2000
£420.00 · 24% less, betterFs28 Hz −13%, better
Qts0.27 −16%, better
Vas232.1 L +32%, worse
BL30.8 T·m –
Xmax16.3 mm −7%
Sensitivity94.6 dB –
B&C18SW115
£430.38 · 22% less, betterFs32 Hz –
Qts0.30 −6%
Vas187 L +6%
BL30.3 T·m −3%
Xmax14 mm −20%, worse
Sensitivity94.9 dB –
Sica18 K 4 PL
£447.92 · 19% less, betterFs37 Hz +15%, worse
Qts0.32 –
Vas201 L +14%, worse
BL26.8 T·m −14%, worse
Xmax6.5 mm −63%, worse
Sensitivity96.6 dB +2.1, better
Eighteen Sound18NLW4500
£468.89 · 15% less, betterFs35 Hz +9%
Qts0.33 +3%
Vas151 L −14%, better
BL30.3 T·m −3%
Xmax15.3 mm −13%, worse
Sensitivity94.8 dB –
FaitalPRO18XL1700
£469.00 · 15% less, betterFs28 Hz −13%, better
Qts0.28 −12%, better
Vas227 L +29%, worse
BL30.5 T·m –
Xmax16.2 mm −8%
Sensitivity94.4 dB –
Eighteen Sound18NLW9000
£550.00 · Same priceFs34 Hz +6%
Qts0.31 −3%
Vas206 L +17%, worse
BL28 T·m −11%, worse
Xmax14 mm −20%, worse
Sensitivity96.1 dB +1.6
Eighteen Sound18NTLS5000
£665.00 · 21% more, worseFs37 Hz +16%, worse
Qts0.33 +3%
Vas75 L −57%, better
BL30.7 T·m –
Xmax17.8 mm –
Sensitivity92.4 dB −2.1, worse
B&C18HTX100
£809.86 · 47% more, worseFs44 Hz +38%, worse
Qts0.32 –
Vas173 L –
BL26.3 T·m −16%, worse
Xmax13 mm −26%, worse
Sensitivity98.4 dB +3.9, better
No photo
Precision DevicesPD.1845-1N
No current priceFs34 Hz +7%
Qts0.32 –
Vas179.0 L –
BL26.4 T·m −16%, worse
Xmax16 mm −9%
Sensitivity95.3 dB +0.8
Oberton18NXB1600
No current priceFs32 Hz –
Qts0.30 −5%
Vas173.1 L –
BL29.6 T·m −5%
Xmax13.5 mm −23%, worse
Sensitivity94.5 dB –
Eighteen Sound18LW2500
No current priceFs34 Hz +6%
Qts0.33 +3%
Vas135 L −23%, better
BL30 T·m −4%
Xmax15 mm −14%, worse
Sensitivity94 dB −0.5
Eighteen Sound18NLW4000
No current priceFs34 Hz +6%
Qts0.33 +3%
Vas135 L −23%, better
BL30 T·m −4%
Xmax15 mm −14%, worse
Sensitivity94 dB −0.5
RCFLF18N408
No current priceFs30 Hz −6%
Qts0.33 +3%
Vas193 L +10%
BL25.7 T·m −18%, worse
Xmax15 mm −14%, worse
Sensitivity93.6 dB −0.9
VAS Audio18-1700FC
No current priceFs33 Hz +3%
Qts0.29 −8%
Vas181 L –
BL33 T·m +5%
Xmax13.5 mm −23%, worse
Sensitivity95.4 dB +0.9
Oberton18XB1201
No current priceFs38 Hz +19%, worse
Qts0.32 –
Vas159.4 L −9%
BL26.7 T·m −15%, worse
Xmax10.5 mm −40%, worse
Sensitivity96.3 dB +1.8
Oberton18NXB700
No current priceFs36 Hz +13%, worse
Qts0.31 –
Vas155.5 L −12%, better
BL27.8 T·m −11%, worse
Xmax9 mm −49%, worse
Sensitivity95.6 dB +1.1
REDCATT186FIND
No current priceFs33 Hz +3%
Qts0.35 +9%
Vas174.2 L –
BL30.2 T·m −4%
Xmax8.4 mm −52%, worse
Sensitivity94.4 dB –
Oberton18XB700
No current priceFs36 Hz +13%, worse
Qts0.30 −5%
Vas183.2 L +4%
BL26.1 T·m −17%, worse
Xmax9 mm −49%, worse
Sensitivity96.4 dB +1.9
VAS Audio18-1700NC
No current priceFs32 Hz –
Qts0.28 −12%, better
Vas178 L –
BL34.4 T·m +10%
Xmax13.5 mm −23%, worse
Sensitivity95.1 dB +0.6
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 56 ratings · Checked 25 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 Audio | £550.00, the lowest price | In stock | Visit shop at Lean Audio | |
Thomann | £664.00 | 21% above the lowest price | In stock | Visit shop at Thomann |
Best price over time
Tracked since 1 Apr
Recent changes
- 23 OctThomann£666.00 → £664.00Down 0.3% from £666.00
- 7 OctThomann£679.00 → £666.00Down 1.9% from £679.00
- 29 SepThomann£677.00 → £679.00Up 0.3% from £677.00