18-inch LF driver · 1,800 W

Eighteen Sound 18NLW9000 4Ω

Name: Eighteen Sound 18NLW9000 4 Ohm
Brand: Eighteen Sound
SKU: 18NLW9000

32–2500 Hz

No price for delivery to the UK

All 2 offers

Open in 00 Simulator

Fs: 32Hz
Xmax: 14mm
SPL: 98dB
Pe: 1800W
BL: 25T·m
Vd: 1711cm³
Qts: 0.21
Vas: 247L

See all 25 specs

Published graphs

Eighteen Sound 18NLW9000 manufacturer graph 1

Eighteen Sound 18NLW9000 manufacturer graph 2

Specifications

Published by Eighteen Sound

Manufacturer page

Datasheet PDF

Eighteen Sound 18NLW9000 is an 18-inch 4 ohm LF driver rated at 1800 W RMS. The validated T/S data includes Fs 32 Hz, Qts 0.21, Vas 247 L, Xmax 14 mm, sensitivity 97.7 dB, plus 1711 cm³ Vd and 145 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: 32Hz
Qts: 0.21
Qes: 0.22
Qms: 5
Vas: 247L
Re: 3.1Ω
Le: 1.20mH

Motor and cone

BL: 25T·m
Sd: 1222cm²
Mms: 228g
Xmax: 14mm
Vd †: 1711cm³

Power and response

Sensitivity †: 97.7dB
Manufacturer sensitivity: 97dB
Power: 1800W
Nominal power: 1800W
Impedance: 4Ω
Range: 32–2500Hz
EBP †: 145 · Leans vented

Size and mounting

Diameter: 462mm
Cutout: 422mm
Bolt circle: 440mm
Depth: 237mm
Weight: 12.5kg

Other published values

Power Program: 3600

† Calculated by bits from the published values

What this validation status means

Everything else Eighteen Sound lists

LF · Primary · 18″

BL: 25T·m
Fs: 32Hz
Le: 1.20mH
Re: 3.1Ω
Sd: 1222cm²
Mms: 228g
Qes: 0.22
Qms: 5
Qts: 0.21
SPL: 97.7dB
Vas: 247L
Xmax: 14mm
Power: 1800W
Impedance: 4Ω
Sensitivity: 97dB
Low limit: 32Hz
Nominal power: 1800W
Power Program: 3600
Calculated sensitivity †: 97.7dB
High limit: 2500Hz
Manufacturer sensitivity: 97dB
Weight: 12.5kg
Diameter: 462mm
Depth: 237mm
Cutout: 422mm
Bolt circle: 440mm

Designs

What Eighteen Sound suggests for the 18NLW9000. No published designs name it yet.

How we find designs

Eighteen Sound’s suggested box

From Eighteen Sound’s 18NLW9000 page

Eighteen Sound’s suggestion200 L vented boxFrom Eighteen Sound’s 18NLW9000 page

Net volume: 200L
Tuning: 36Hz

Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.

Open this box in 00 Simulator

Modelling the box in 00 Simulator…

Compare

Same-size drivers, compared with the 18NLW9000. Clear differences are green when better and red when worse.

This driver18NLW9000

Best price

–

32 Hz

Qts

0.21

Vas

247 L

25 T·m

Xmax

14 mm

Sensitivity

97.7 dB

Power

1800 W

PRV Audio18SW3600

£238.40

Fs33 Hz –

Qts0.36 +71%

Vas279.7 L +13%

BL25.5 T·m –

Xmax13.3 mm −5%

Sensitivity96.1 dB −1.6

Eighteen Sound18W1001

£254.65

Fs35 Hz +9%

Qts0.23 +10%

Vas268 L +9%

BL27.6 T·m +10%

Xmax7 mm −50%

Sensitivity98.8 dB +1.1

Beyma18PWB1000FE

£255.00

Fs27 Hz −16%

Qts0.38 +81%

Vas317 L +28%

BL25 T·m –

Xmax12.5 mm −11%

Sensitivity94 dB −3.7

CIARENDH18-4S

£291.62

Fs31 Hz −3%

Qts0.25 +19%

Vas240 L –

BL22.2 T·m −11%

Xmax11.5 mm −18%

Sensitivity96.6 dB −1.1

Eighteen Sound18LW2600

£296.70

Fs30 Hz −6%

Qts0.28 +33%

Vas186 L −25%

BL23.4 T·m −6%

Xmax14 mm –

Sensitivity94.4 dB −3.3

Beyma18QLEX1600FE

£299.00

Fs30 Hz −6%

Qts0.23 +10%

Vas195 L −21%

BL36.4 T·m +46%

Xmax13 mm −7%

Sensitivity95.4 dB −2.3

Eighteen Sound18NLW9400

£305.06

Fs32 Hz –

Qts0.22 +5%

Vas278 L +13%

BL20.5 T·m −18%

Xmax9.5 mm −32%

Sensitivity98 dB –

SB AudienceROSSO-18SW1000D

£309.19

Fs35 Hz +9%

Qts0.46 +119%

Vas164.3 L −33%

BL25.8 T·m +3%

Xmax13.7 mm –

Sensitivity93.6 dB −4.1

RCFLF18N405

£325.54

Fs30 Hz −6%

Qts0.32 +52%

Vas227 L −8%

BL26.5 T·m +6%

Xmax14 mm –

Sensitivity94.6 dB −3.1

Oberton18XB1500V2

£349.00

Fs36 Hz +12%

Qts0.23 +7%

Vas192.5 L −22%

BL31.6 T·m +26%

Xmax11 mm −21%

Sensitivity97.9 dB –

Precision DevicesPD.185C003

£359.00

Fs33 Hz +3%

Qts0.24 +14%

Vas224 L −9%

BL31.5 T·m +26%

Xmax11 mm −21%

Sensitivity97.5 dB –

RCFLF18X451

£360.00

Fs30 Hz −6%

Qts0.28 +33%

Vas220 L −11%

BL30.5 T·m +22%

Xmax14 mm –

Sensitivity95.1 dB −2.6

Eighteen Sound18NLW4100

£371.08

Fs29 Hz −9%

Qts0.27 +29%

Vas207 L −16%

BL22.8 T·m −9%

Xmax15 mm +7%

Sensitivity94.6 dB −3.1

RCFLF18N451

£375.00

Fs31 Hz −3%

Qts0.24 +14%

Vas245 L –

BL30.2 T·m +21%

Xmax9 mm −36%

Sensitivity96.7 dB −1

Oberton18XB1600V2

£388.58

Fs33 Hz –

Qts0.28 +32%

Vas267 L +8%

BL29.6 T·m +18%

Xmax12.5 mm −11%

Sensitivity97.1 dB −0.6

Beyma18LEX1600ND

£399.00

Fs33 Hz +3%

Qts0.43 +105%

Vas231 L −6%

BL24.5 T·m –

Xmax14.5 mm +4%

Sensitivity94.7 dB −3

Precision DevicesPD.1850/3

£399.00

Fs33 Hz +4%

Qts0.24 +14%

Vas203.8 L −17%

BL31.0 T·m +24%

Xmax11.1 mm −21%

Sensitivity96.9 dB −0.8

B&C18SW115

£425.41

Fs34 Hz +6%

Qts0.30 +43%

Vas149.1 L −40%

BL26 T·m +4%

Xmax14 mm –

Sensitivity94.8 dB −2.9

Dayton AudioRSS460HO-4

£442.12

Fs19 Hz −41%

Qts0.32 +52%

Vas272 L +10%

BL23.4 T·m −6%

Xmax12.8 mm −9%

Sensitivity89.2 dB −8.5

B&C18DS100

£455.18

Fs32 Hz –

Qts0.24 +14%

Vas157 L −36%

BL24.3 T·m –

Xmax14 mm –

Sensitivity95.3 dB −2.4

BMS18N850V2

£457.13

Fs30 Hz −7%

Qts0.33 +57%

Vas243 L –

BL25.4 T·m –

Xmax12 mm −14%

Sensitivity94.7 dB −3

Eighteen Sound18NLW9601

£542.42

Fs38 Hz +19%

Qts0.28 +33%

Vas111 L −55%

BL25 T·m –

Xmax14 mm –

Sensitivity95.3 dB −2.4

REDCATT181XR

£543.21

Fs30 Hz −6%

Qts0.23 +10%

Vas195 L −21%

BL28.3 T·m +13%

Xmax17 mm +21%

Sensitivity95.4 dB −2.3

Oberton18NSW700

No current price

Fs30 Hz −5%

Qts0.24 +16%

Vas309.0 L +25%

BL26.6 T·m +7%

Xmax14 mm –

Sensitivity97.5 dB –

CIAREPW455

No current price

Fs35 Hz +9%

Qts0.24 +14%

Vas236 L −4%

BL21.8 T·m −13%

Xmax8.5 mm −39%

Sensitivity98.3 dB +0.6

Eighteen Sound18W2000

No current price

Fs37 Hz +16%

Qts0.25 +19%

Vas230 L −7%

BL27.1 T·m +8%

Xmax–

Sensitivity98.5 dB +0.8

Eighteen Sound18W2001

No current price

Fs37 Hz +16%

Qts0.25 +19%

Vas230 L −7%

BL27.1 T·m +8%

Xmax7 mm −50%

Sensitivity98.5 dB +0.8

B&C19RS115

No current price

Fs29 Hz −9%

Qts0.20 −5%

Vas197 L −20%

BL42 T·m +68%

Xmax23.5 mm +68%

Sensitivity95.6 dB −2.1

RCFLF18N408

No current price

Fs30 Hz −6%

Qts0.33 +57%

Vas193 L −22%

BL25.7 T·m –

Xmax15 mm +7%

Sensitivity93.6 dB −4.1

Oberton18FBR700

No current price

Fs36 Hz +11%

Qts0.27 +29%

Vas231.3 L −6%

BL25.2 T·m –

Xmax8 mm −43%

Sensitivity97.8 dB –

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lean Audio Checked 4 Nov 2026 · 4 Ω · Source: inc VAT · 20%	£767.59		Back order	Visit shop at Lean Audio

bits00 AUDIO

18-inch LF driver · 1,800 W

Eighteen Sound 18NLW9000 4Ω

32–2500 Hz

No price for delivery to the UK

All 2 offers

Open in 00 Simulator

Fs: 32Hz
Xmax: 14mm
SPL: 98dB
Pe: 1800W
BL: 25T·m
Vd: 1711cm³
Qts: 0.21
Vas: 247L

See all 25 specs

Published graphs

Specifications

Published by Eighteen Sound

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 32Hz
Qts: 0.21
Qes: 0.22
Qms: 5
Vas: 247L
Re: 3.1Ω
Le: 1.20mH

Motor and cone

BL: 25T·m
Sd: 1222cm²
Mms: 228g
Xmax: 14mm
Vd †: 1711cm³

Power and response

Sensitivity †: 97.7dB
Manufacturer sensitivity: 97dB
Power: 1800W
Nominal power: 1800W
Impedance: 4Ω
Range: 32–2500Hz
EBP †: 145 · Leans vented

Size and mounting

Diameter: 462mm
Cutout: 422mm
Bolt circle: 440mm
Depth: 237mm
Weight: 12.5kg

Other published values

Power Program: 3600

† Calculated by bits from the published values

What this validation status means

Everything else Eighteen Sound lists

LF · Primary · 18″

BL: 25T·m
Fs: 32Hz
Le: 1.20mH
Re: 3.1Ω
Sd: 1222cm²
Mms: 228g
Qes: 0.22
Qms: 5
Qts: 0.21
SPL: 97.7dB
Vas: 247L
Xmax: 14mm
Power: 1800W
Impedance: 4Ω
Sensitivity: 97dB
Low limit: 32Hz
Nominal power: 1800W
Power Program: 3600
Calculated sensitivity †: 97.7dB
High limit: 2500Hz
Manufacturer sensitivity: 97dB
Weight: 12.5kg
Diameter: 462mm
Depth: 237mm
Cutout: 422mm
Bolt circle: 440mm

Designs

What Eighteen Sound suggests for the 18NLW9000. No published designs name it yet.

How we find designs

Eighteen Sound’s suggested box

From Eighteen Sound’s 18NLW9000 page

Eighteen Sound’s suggestion200 L vented boxFrom Eighteen Sound’s 18NLW9000 page

Net volume: 200L
Tuning: 36Hz

Eighteen Sound gives the volume and tuning; the port is sized for the driver when you open it.

Open this box in 00 Simulator

Modelling the box in 00 Simulator…

Compare

Same-size drivers, compared with the 18NLW9000. Clear differences are green when better and red when worse.

This driver18NLW9000

Best price

–

32 Hz

Qts

0.21

Vas

247 L

25 T·m

Xmax

14 mm

Sensitivity

97.7 dB

Power

1800 W

PRV Audio18SW3600

£238.40

Fs33 Hz –

Qts0.36 +71%

Vas279.7 L +13%

BL25.5 T·m –

Xmax13.3 mm −5%

Sensitivity96.1 dB −1.6

Eighteen Sound18W1001

£254.65

Fs35 Hz +9%

Qts0.23 +10%

Vas268 L +9%

BL27.6 T·m +10%

Xmax7 mm −50%

Sensitivity98.8 dB +1.1

Beyma18PWB1000FE

£255.00

Fs27 Hz −16%

Qts0.38 +81%

Vas317 L +28%

BL25 T·m –

Xmax12.5 mm −11%

Sensitivity94 dB −3.7

CIARENDH18-4S

£291.62

Fs31 Hz −3%

Qts0.25 +19%

Vas240 L –

BL22.2 T·m −11%

Xmax11.5 mm −18%

Sensitivity96.6 dB −1.1

Eighteen Sound18LW2600

£296.70

Fs30 Hz −6%

Qts0.28 +33%

Vas186 L −25%

BL23.4 T·m −6%

Xmax14 mm –

Sensitivity94.4 dB −3.3

Beyma18QLEX1600FE

£299.00

Fs30 Hz −6%

Qts0.23 +10%

Vas195 L −21%

BL36.4 T·m +46%

Xmax13 mm −7%

Sensitivity95.4 dB −2.3

Eighteen Sound18NLW9400

£305.06

Fs32 Hz –

Qts0.22 +5%

Vas278 L +13%

BL20.5 T·m −18%

Xmax9.5 mm −32%

Sensitivity98 dB –

SB AudienceROSSO-18SW1000D

£309.19

Fs35 Hz +9%

Qts0.46 +119%

Vas164.3 L −33%

BL25.8 T·m +3%

Xmax13.7 mm –

Sensitivity93.6 dB −4.1

RCFLF18N405

£325.54

Fs30 Hz −6%

Qts0.32 +52%

Vas227 L −8%

BL26.5 T·m +6%

Xmax14 mm –

Sensitivity94.6 dB −3.1

Oberton18XB1500V2

£349.00

Fs36 Hz +12%

Qts0.23 +7%

Vas192.5 L −22%

BL31.6 T·m +26%

Xmax11 mm −21%

Sensitivity97.9 dB –

Precision DevicesPD.185C003

£359.00

Fs33 Hz +3%

Qts0.24 +14%

Vas224 L −9%

BL31.5 T·m +26%

Xmax11 mm −21%

Sensitivity97.5 dB –

RCFLF18X451

£360.00

Fs30 Hz −6%

Qts0.28 +33%

Vas220 L −11%

BL30.5 T·m +22%

Xmax14 mm –

Sensitivity95.1 dB −2.6

Eighteen Sound18NLW4100

£371.08

Fs29 Hz −9%

Qts0.27 +29%

Vas207 L −16%

BL22.8 T·m −9%

Xmax15 mm +7%

Sensitivity94.6 dB −3.1

RCFLF18N451

£375.00

Fs31 Hz −3%

Qts0.24 +14%

Vas245 L –

BL30.2 T·m +21%

Xmax9 mm −36%

Sensitivity96.7 dB −1

Oberton18XB1600V2

£388.58

Fs33 Hz –

Qts0.28 +32%

Vas267 L +8%

BL29.6 T·m +18%

Xmax12.5 mm −11%

Sensitivity97.1 dB −0.6

Beyma18LEX1600ND

£399.00

Fs33 Hz +3%

Qts0.43 +105%

Vas231 L −6%

BL24.5 T·m –

Xmax14.5 mm +4%

Sensitivity94.7 dB −3

Precision DevicesPD.1850/3

£399.00

Fs33 Hz +4%

Qts0.24 +14%

Vas203.8 L −17%

BL31.0 T·m +24%

Xmax11.1 mm −21%

Sensitivity96.9 dB −0.8

B&C18SW115

£425.41

Fs34 Hz +6%

Qts0.30 +43%

Vas149.1 L −40%

BL26 T·m +4%

Xmax14 mm –

Sensitivity94.8 dB −2.9

Dayton AudioRSS460HO-4

£442.12

Fs19 Hz −41%

Qts0.32 +52%

Vas272 L +10%

BL23.4 T·m −6%

Xmax12.8 mm −9%

Sensitivity89.2 dB −8.5

B&C18DS100

£455.18

Fs32 Hz –

Qts0.24 +14%

Vas157 L −36%

BL24.3 T·m –

Xmax14 mm –

Sensitivity95.3 dB −2.4

BMS18N850V2

£457.13

Fs30 Hz −7%

Qts0.33 +57%

Vas243 L –

BL25.4 T·m –

Xmax12 mm −14%

Sensitivity94.7 dB −3

Eighteen Sound18NLW9601

£542.42

Fs38 Hz +19%

Qts0.28 +33%

Vas111 L −55%

BL25 T·m –

Xmax14 mm –

Sensitivity95.3 dB −2.4

REDCATT181XR

£543.21

Fs30 Hz −6%

Qts0.23 +10%

Vas195 L −21%

BL28.3 T·m +13%

Xmax17 mm +21%

Sensitivity95.4 dB −2.3

Oberton18NSW700

No current price

Fs30 Hz −5%

Qts0.24 +16%

Vas309.0 L +25%

BL26.6 T·m +7%

Xmax14 mm –

Sensitivity97.5 dB –

CIAREPW455

No current price

Fs35 Hz +9%

Qts0.24 +14%

Vas236 L −4%

BL21.8 T·m −13%

Xmax8.5 mm −39%

Sensitivity98.3 dB +0.6

Eighteen Sound18W2000

No current price

Fs37 Hz +16%

Qts0.25 +19%

Vas230 L −7%

BL27.1 T·m +8%

Xmax–

Sensitivity98.5 dB +0.8

Eighteen Sound18W2001

No current price

Fs37 Hz +16%

Qts0.25 +19%

Vas230 L −7%

BL27.1 T·m +8%

Xmax7 mm −50%

Sensitivity98.5 dB +0.8

B&C19RS115

No current price

Fs29 Hz −9%

Qts0.20 −5%

Vas197 L −20%

BL42 T·m +68%

Xmax23.5 mm +68%

Sensitivity95.6 dB −2.1

RCFLF18N408

No current price

Fs30 Hz −6%

Qts0.33 +57%

Vas193 L −22%

BL25.7 T·m –

Xmax15 mm +7%

Sensitivity93.6 dB −4.1

Oberton18FBR700

No current price

Fs36 Hz +11%

Qts0.27 +29%

Vas231.3 L −6%

BL25.2 T·m –

Xmax8 mm −43%

Sensitivity97.8 dB –

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lean Audio Checked 4 Nov 2026 · 4 Ω · Source: inc VAT · 20%	£767.59		Back order	Visit shop at Lean Audio