- Net volume
- 100L
- Tuning
- 28Hz
Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.
18-inch LF driver · 1,200 W
Eighteen Sound 18NLS4000 4Ω
4 Ω · 28–500 Hz
£486.84
SteadyLean Audio · 2 in stock · All 2 offers
- Fs
- 27Hz
- Xmax
- 22.3mm
- SPL
- 92dB
- Pe
- 1200W
- BL
- 24.2T·m
- Vd
- 2732cm³
- Qts
- 0.35
- Vas
- 168L
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 confidence725 selected pixels of 814 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence522 selected pixels of 779
Published graphs
Eighteen Sound 18NLS4000 is an 18-inch 4 ohm LF driver rated at 1200 W RMS. The validated T/S data includes Fs 27 Hz, Qts 0.35, Vas 168 L, Xmax 22.3 mm, sensitivity 91.7 dB, plus 2732 cm³ Vd and 75 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 £486.84.
The published T/S values agree with each other
Thiele/Small
- Fs
- 27Hz
- Qts
- 0.35
- Qes
- 0.36
- Qms
- 13.7
- Vas
- 168L
- Re
- 2.9Ω
- Le
- 2.60mH
Motor and cone
- BL
- 24.2T·m
- Sd
- 1225cm²
- Mms
- 433g
- Xmax
- 22.3mm
- Vd †
- 2732cm³
Power and response
- Sensitivity †
- 91.7dB
- Manufacturer sensitivity
- 88dB
- Power
- 1200W
- Nominal power
- 1200W
- Impedance
- 4Ω
- Range
- 28–500Hz
- EBP †
- 75 · Sealed or vented
Size and mounting
- Diameter
- 462mm
- Cutout
- 420mm
- Bolt circle
- 439mm
- Depth
- 250mm
- Weight
- 12kg
Other published values
- Power Program
- 2400
Sensitivity shows 91.7 dB, calculated from the T/S values. Eighteen Sound publishes 88.0 dB, 3.7 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Eighteen Sound lists
LF · Primary · 18″
- BL
- 24.2T·m
- Fs
- 27Hz
- Le
- 2.60mH
- Re
- 2.9Ω
- Sd
- 1225cm²
- Mms
- 433g
- Qes
- 0.36
- Qms
- 13.7
- Qts
- 0.35
- SPL
- 91.7dB
- Vas
- 168L
- Xmax
- 22.3mm
- Power
- 1200W
- Impedance
- 4Ω
- Sensitivity
- 88dB
- Low limit
- 28Hz
- Nominal power
- 1200W
- Power Program
- 2400
- Calculated sensitivity †
- 91.7dB
- High limit
- 500Hz
- Manufacturer sensitivity
- 88dB
- Weight
- 12kg
- Diameter
- 462mm
- Depth
- 250mm
- Cutout
- 420mm
- Bolt circle
- 439mm
02
Designs
What Eighteen Sound suggests for the 18NLS4000. No published designs name it yet.
How we find designsEighteen Sound’s suggested box
From Eighteen Sound’s 18NLS4000 page
Open this box in 00 Simulator
Modelling the box in 00 Simulator…
03
Compare
Same-size drivers, compared with the 18NLS4000. Clear differences are green when better and red when worse.
This driver18NLS4000
Best price
£486.84
Fs
27 Hz
Qts
0.35
Vas
168 L
BL
24.2 T·m
Xmax
22.3 mm
Sensitivity
91.7 dB
Power
1200 W
RCFL18P300
£225.00 · 54% less, betterFs33 Hz +22%, worse
Qts0.33 −6%
Vas226 L +35%, worse
BL23.5 T·m –
Xmax8 mm −64%, worse
Sensitivity95.8 dB +4.1, better
B&C18PZW100
£227.00 · 53% less, betterFs37 Hz +37%, worse
Qts0.36 –
Vas186 L +11%, worse
BL25.5 T·m +5%
Xmax8 mm −64%, worse
Sensitivity96 dB +4.3, better
B&C18TBW100
£227.94 · 53% less, betterFs33 Hz +22%, worse
Qts0.32 −9%
Vas181.5 L +8%
BL22.8 T·m −6%
Xmax12 mm −46%, worse
Sensitivity94.9 dB +3.2, better
Eighteen Sound18LW1400
£266.74 · 45% less, betterFs33 Hz +22%, worse
Qts0.32 −9%
Vas210 L +25%, worse
BL22.1 T·m −9%
Xmax9 mm −60%, worse
Sensitivity95.5 dB +3.8, better
Beyma18LEX1600FE
£277.00 · 43% less, betterFs34 Hz +26%, worse
Qts0.38 +9%
Vas188 L +12%, worse
BL26.9 T·m +11%, better
Xmax13 mm −42%, worse
Sensitivity94.7 dB +3, better
B&C18NBX100
£278.92 · 43% less, betterFs35 Hz +30%, worse
Qts0.37 +6%
Vas192 L +14%, worse
BL22 T·m −9%
Xmax10 mm −55%, worse
Sensitivity95.3 dB +3.6, better
Beyma18LEX1200ND
£279.79 · 43% less, betterFs36 Hz +33%, worse
Qts0.33 −6%
Vas219 L +30%, worse
BL26.4 T·m +9%
Xmax11 mm −51%, worse
Sensitivity96.7 dB +5, better
FaneCOLOSSUS 18SB
£280.00 · 42% less, betterFs36 Hz +33%, worse
Qts0.35 –
Vas199 L +18%, worse
BL24 T·m –
Xmax8.3 mm −63%, worse
Sensitivity96.1 dB +4.4, better
FaitalPRO18HP1030
£300.59 · 38% less, betterFs35 Hz +30%, worse
Qts0.32 −9%
Vas172.2 L –
BL21.7 T·m −10%, worse
Xmax12.4 mm −44%, worse
Sensitivity95.5 dB +3.8, better
BMS18S430V2
£316.72 · 35% less, betterFs31 Hz +15%, worse
Qts0.34 –
Vas262 L +56%, worse
BL23.5 T·m –
Xmax8 mm −64%, worse
Sensitivity95.4 dB +3.7, better
B&C18SW100
£333.25 · 32% less, betterFs36 Hz +33%, worse
Qts0.36 –
Vas160 L −5%
BL22 T·m −9%
Xmax12.5 mm −44%, worse
Sensitivity94.7 dB +3, better
Eighteen Sound18TLW3000
£337.44 · 31% less, betterFs32 Hz +19%, worse
Qts0.35 –
Vas185 L +10%, worse
BL20 T·m −17%, worse
Xmax12 mm −46%, worse
Sensitivity94.3 dB +2.6, better
FaitalPRO18HW1070
£350.83 · 28% less, betterFs32 Hz +19%, worse
Qts0.33 −6%
Vas191.5 L +14%, worse
BL21.6 T·m −11%, worse
Xmax13 mm −42%, worse
Sensitivity94.7 dB +3, better
No photo
Precision DevicesPD.1845-2N
£422.00 · 13% less, betterFs35 Hz +30%, worse
Qts0.39 +11%, worse
Vas157 L −7%
BL27 T·m +12%, better
Xmax18 mm −19%, worse
Sensitivity94.3 dB +2.6, better
FaitalPRO18XL1800
£425.00 · 13% less, betterFs29 Hz +7%
Qts0.40 +14%, worse
Vas215.5 L +28%, worse
BL25.4 T·m +5%
Xmax20.2 mm −10%
Sensitivity93 dB +1.3
FaitalPRO18HP1060
£436.24 · 10% less, betterFs35 Hz +30%, worse
Qts0.33 −6%
Vas184.4 L +10%
BL20.7 T·m −14%, worse
Xmax12.4 mm −44%, worse
Sensitivity95.7 dB +4, better
Sica18 K 4 PL
£447.92 · 8% less, betterFs37 Hz +36%, worse
Qts0.32 −9%
Vas201 L +20%, worse
BL26.8 T·m +11%, better
Xmax6.5 mm −71%, worse
Sensitivity96.6 dB +4.9, better
Eighteen Sound18NTLW5000
£550.00 · 13% more, worseFs32 Hz +19%, worse
Qts0.30 −14%, better
Vas165 L –
BL25 T·m +3%
Xmax17.5 mm −22%, worse
Sensitivity94.4 dB +2.7, better
BMS18N862
£669.01 · 37% more, worseFs25 Hz −7%
Qts0.34 –
Vas312 L +86%, worse
BL25.5 T·m +5%
Xmax19 mm −15%, worse
Sensitivity93.4 dB +1.7
B&C18HTX100
£809.86 · 66% more, worseFs44 Hz +63%, worse
Qts0.32 −9%
Vas173 L –
BL26.3 T·m +9%
Xmax13 mm −42%, worse
Sensitivity98.4 dB +6.7, better
RCFLF18N408
No current priceFs30 Hz +11%, worse
Qts0.33 −6%
Vas193 L +15%, worse
BL25.7 T·m +6%
Xmax15 mm −33%, worse
Sensitivity93.6 dB +1.9
REDCATT186FIND
No current priceFs33 Hz +22%, worse
Qts0.35 –
Vas174.2 L +4%
BL30.2 T·m +25%, better
Xmax8.4 mm −62%, worse
Sensitivity94.4 dB +2.7, better
No photo
Precision DevicesPD.1845-1N
No current priceFs34 Hz +26%, worse
Qts0.32 −7%
Vas179.0 L +7%
BL26.4 T·m +9%
Xmax16 mm −28%, worse
Sensitivity95.3 dB +3.6, better
Sica18 S 4 CP
No current priceFs33 Hz +22%, worse
Qts0.35 –
Vas225 L +34%, worse
BL23.5 T·m –
Xmax11 mm −51%, worse
Sensitivity95.2 dB +3.5, better
Oberton18XB1201
No current priceFs38 Hz +41%, worse
Qts0.32 −9%
Vas159.4 L −5%
BL26.7 T·m +10%, better
Xmax10.5 mm −53%, worse
Sensitivity96.3 dB +4.6, better
FaneCOLOSSUS 18XB
No current priceFs33 Hz +22%, worse
Qts0.34 −4%
Vas236 L +40%, worse
BL25.9 T·m +7%
Xmax7.5 mm −66%, worse
Sensitivity95.8 dB +4.1, better
CelestionERPROX18
No current priceFs35 Hz +29%, worse
Qts0.38 +8%
Vas188.9 L +12%, worse
BL24.4 T·m –
Xmax9.5 mm −57%, worse
Sensitivity94.7 dB +3, better
Oberton18B450
No current priceFs34 Hz +27%, worse
Qts0.34 –
Vas241.6 L +44%, worse
BL22.1 T·m −9%
Xmax7.3 mm −67%, worse
Sensitivity96.4 dB +4.7, better
P.AudioP-18N-V3
No current priceFs35 Hz +30%, worse
Qts0.40 +14%, worse
Vas179.5 L +7%
BL24.1 T·m –
Xmax9 mm −60%, worse
Sensitivity94.7 dB +3, better
Sica18 S 4 PL
No current priceFs36 Hz +34%, worse
Qts0.39 +11%, worse
Vas189 L +13%, worse
BL23.5 T·m –
Xmax8 mm −64%, worse
Sensitivity95.3 dB +3.6, better
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 | £486.84, the lowest price | 2 in stock | Visit shop at Lean Audio |
Best price over time
Tracked since 1 Apr