18-inch LF driver · 102 mm voice coil · 1,500 W

RCF LF18N408 8Ω

Name: RCF LF18N408 8 Ohm
Brand: RCF
SKU: LF18N408

8 Ω · 25–1000 Hz

No price for delivery to the UK

All 2 offers

Open in 00 Simulator

Fs: 30Hz
Xmax: 15mm
SPL: 94dB
Pe: 1500W
BL: 25.7T·m
Vd: 1830cm³
Qts: 0.33
Vas: 193L

See all 25 specs

Specifications

Published by RCF

Manufacturer page

Datasheet PDF

RCF LF18N408 is an 18-inch 8 ohm LF driver rated at 1500 W RMS. The validated T/S data includes Fs 30 Hz, Qts 0.33, Vas 193 L, Xmax 15 mm, sensitivity 93.6 dB, plus 1830 cm³ Vd and 83 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: 30Hz
Qts: 0.33
Qes: 0.36
Qms: 3.6
Vas: 193L
Re: 4.3Ω
Le: 1.56mH

Motor and cone

BL: 25.7T·m
Sd: 1220cm²
Mms: 284g
Xmax: 15mm
Vd †: 1830cm³
Voice coil: 102mm

Power and response

Sensitivity †: 93.6dB
Manufacturer sensitivity: 97dB
Power: 1500W
Impedance: 8Ω
Min. impedance: 6Ω
Range: 25–1000Hz
EBP †: 83 · Sealed or vented

Size and mounting

Diameter: 465mm
Cutout: 424mm
Weight: 9kg

Other published values

Xmech: 58
Power Program: 3000

Sensitivity shows 93.6 dB, calculated from the T/S values. RCF publishes 97.0 dB, 3.4 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else RCF lists

LF · Primary · 18″

BL: 25.7T·m
Fs: 30Hz
Le: 1.56mH
Re: 4.3Ω
Sd: 1220cm²
Mms: 284g
Qes: 0.36
Qms: 3.6
Qts: 0.33
SPL: 93.6dB
Vas: 193L
Xmax: 15mm
Xmech: 58
Power: 1500W
Impedance: 8Ω
Sensitivity: 97dB
Low limit: 25Hz
Power Program: 3000
Calculated sensitivity †: 93.6dB
High limit: 1000Hz
Manufacturer sensitivity: 97dB
Min. impedance: 6Ω
Voice coil: 102mm
Weight: 9kg
Diameter: 465mm
Cutout: 424mm

Compare

Same-size drivers, compared with the LF18N408. Clear differences are green when better and red when worse.

This driverLF18N408

Best price

–

30 Hz

Qts

0.33

Vas

193 L

25.7 T·m

Xmax

15 mm

Sensitivity

93.6 dB

Power

1500 W

B&C18TBX100

£184.81

Fs34 Hz +13%

Qts0.35 +6%

Vas212 L +10%

BL25.5 T·m –

Xmax9 mm −40%

Sensitivity95.6 dB +2

B&C18RBX100

£226.58

Fs40 Hz +33%

Qts0.34 +3%

Vas220 L +14%

BL25.1 T·m –

Xmax10 mm −33%

Sensitivity98 dB +4.4

B&C18PZW100

£227.00

Fs37 Hz +23%

Qts0.36 +9%

Vas186 L −4%

BL25.5 T·m –

Xmax8 mm −47%

Sensitivity96 dB +2.4

PRV Audio18SW3600

£239.31

Fs33 Hz +8%

Qts0.36 +9%

Vas279.7 L +45%

BL25.5 T·m –

Xmax13.3 mm −12%

Sensitivity96.1 dB +2.5

FaitalPRO18HP1060

£245.81

Fs35 Hz +17%

Qts0.37 +12%

Vas200.3 L +4%

BL24.8 T·m −4%

Xmax12.4 mm −17%

Sensitivity95.6 dB +2

Beyma18LEX1600FE

£277.00

Fs34 Hz +13%

Qts0.38 +15%

Vas188 L –

BL26.9 T·m +5%

Xmax13 mm −13%

Sensitivity94.7 dB +1.1

Eighteen Sound18LW2420

£279.00

Fs32 Hz +7%

Qts0.33 –

Vas252 L +31%

BL25.3 T·m –

Xmax10 mm −33%

Sensitivity95.8 dB +2.2

Beyma18LEX1200ND

£279.79

Fs36 Hz +20%

Qts0.33 –

Vas219 L +13%

BL26.4 T·m –

Xmax11 mm −27%

Sensitivity96.7 dB +3.1

FaneCOLOSSUS 18SB

£280.00

Fs36 Hz +20%

Qts0.35 +5%

Vas199 L +3%

BL24 T·m −7%

Xmax8.3 mm −45%

Sensitivity96.1 dB +2.5

Oberton18XB1301DS

£284.15

Fs36 Hz +19%

Qts0.30 −8%

Vas172.9 L −10%

BL26.9 T·m +5%

Xmax12 mm −20%

Sensitivity96 dB +2.4

Eighteen Sound18LW2600

£297.25

Fs31 Hz +3%

Qts0.29 −12%

Vas187 L −3%

BL31 T·m +21%

Xmax14.8 mm –

Sensitivity94.7 dB +1.1

FaitalPRO18HW1070

£325.00

Fs32 Hz +7%

Qts0.38 +15%

Vas195.9 L –

BL27 T·m +5%

Xmax13 mm −13%

Sensitivity94.2 dB +0.6

RCFLF18N405

£325.54

Fs30 Hz –

Qts0.32 −3%

Vas227 L +18%

BL26.5 T·m +3%

Xmax14 mm −7%

Sensitivity94.6 dB +1

B&C18SW100

£330.74

Fs35 Hz +17%

Qts0.38 +15%

Vas180 L −7%

BL26.1 T·m –

Xmax12.5 mm −17%

Sensitivity94.9 dB +1.3

Eighteen Sound18NLW4100

£371.77

Fs31 Hz +3%

Qts0.34 +3%

Vas180 L −7%

BL29 T·m +13%

Xmax15 mm –

Sensitivity93.9 dB –

FaitalPRO18XL1600

£399.95

Fs32 Hz +7%

Qts0.36 +9%

Vas211.4 L +10%

BL26.7 T·m +4%

Xmax12.9 mm −14%

Sensitivity94.8 dB +1.2

B&C18SW115

£430.38

Fs32 Hz +7%

Qts0.30 −9%

Vas187 L −3%

BL30.3 T·m +18%

Xmax14 mm −7%

Sensitivity94.9 dB +1.3

Dayton AudioRSS460HO-4

£442.94

Fs19 Hz −37%

Qts0.32 −3%

Vas272 L +41%

BL23.4 T·m −9%

Xmax12.8 mm −15%

Sensitivity89.2 dB −4.4

Sica18 K 4 PL

£447.92

Fs37 Hz +23%

Qts0.32 −3%

Vas201 L +4%

BL26.8 T·m +4%

Xmax6.5 mm −57%

Sensitivity96.6 dB +3

BMS18N850V2

£457.13

Fs30 Hz –

Qts0.33 –

Vas243 L +26%

BL25.4 T·m –

Xmax12 mm −20%

Sensitivity94.7 dB +1.1

Eighteen Sound18NLW4500

£468.89

Fs35 Hz +17%

Qts0.33 –

Vas151 L −22%

BL30.3 T·m +18%

Xmax15.3 mm –

Sensitivity94.8 dB +1.2

Eighteen Sound18NLS4000

£486.84

Fs27 Hz −10%

Qts0.35 +6%

Vas168 L −13%

BL24.2 T·m −6%

Xmax22.3 mm +49%

Sensitivity91.7 dB −1.9

Eighteen Sound18NLW9000

£550.00

Fs34 Hz +13%

Qts0.31 −6%

Vas206 L +7%

BL28 T·m +9%

Xmax14 mm −7%

Sensitivity96.1 dB +2.5

Eighteen Sound18NTLW5000

£550.00

Fs32 Hz +7%

Qts0.32 −3%

Vas176 L −9%

BL31.3 T·m +22%

Xmax17.5 mm +17%

Sensitivity94.5 dB +0.9

B&C18HTX100

£809.86

Fs44 Hz +47%

Qts0.32 −3%

Vas173 L −10%

BL26.3 T·m –

Xmax13 mm −13%

Sensitivity98.4 dB +4.8

No photo

Precision DevicesPD.1845-1N

No current price

Fs34 Hz +14%

Qts0.32 –

Vas179.0 L −7%

BL26.4 T·m –

Xmax16 mm +7%

Sensitivity95.3 dB +1.7

Eighteen Sound18LW2500

No current price

Fs34 Hz +13%

Qts0.33 –

Vas135 L −30%

BL30 T·m +17%

Xmax15 mm –

Sensitivity94 dB –

Eighteen Sound18NLW4000

No current price

Fs34 Hz +13%

Qts0.33 –

Vas135 L −30%

BL30 T·m +17%

Xmax15 mm –

Sensitivity94 dB –

Oberton18NXB1600

No current price

Fs32 Hz +8%

Qts0.30 −8%

Vas173.1 L −10%

BL29.6 T·m +15%

Xmax13.5 mm −10%

Sensitivity94.5 dB +0.9

FaneCOLOSSUS 18XB

No current price

Fs33 Hz +10%

Qts0.34 –

Vas236 L +22%

BL25.9 T·m –

Xmax7.5 mm −50%

Sensitivity95.8 dB +2.2

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
Audio Video Parts Checked 25 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22% Import VAT and duty may apply	£308.84		Special order	Visit shop at Audio Video Parts
Audio Video Parts Checked 25 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22% Import VAT and duty may apply	£308.84		Special order	Visit shop at Audio Video Parts

bits00 AUDIO

18-inch LF driver · 102 mm voice coil · 1,500 W

RCF LF18N408 8Ω

8 Ω · 25–1000 Hz

No price for delivery to the UK

All 2 offers

Open in 00 Simulator

Fs: 30Hz
Xmax: 15mm
SPL: 94dB
Pe: 1500W
BL: 25.7T·m
Vd: 1830cm³
Qts: 0.33
Vas: 193L

See all 25 specs

Specifications

Published by RCF

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 30Hz
Qts: 0.33
Qes: 0.36
Qms: 3.6
Vas: 193L
Re: 4.3Ω
Le: 1.56mH

Motor and cone

BL: 25.7T·m
Sd: 1220cm²
Mms: 284g
Xmax: 15mm
Vd †: 1830cm³
Voice coil: 102mm

Power and response

Sensitivity †: 93.6dB
Manufacturer sensitivity: 97dB
Power: 1500W
Impedance: 8Ω
Min. impedance: 6Ω
Range: 25–1000Hz
EBP †: 83 · Sealed or vented

Size and mounting

Diameter: 465mm
Cutout: 424mm
Weight: 9kg

Other published values

Xmech: 58
Power Program: 3000

Sensitivity shows 93.6 dB, calculated from the T/S values. RCF publishes 97.0 dB, 3.4 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else RCF lists

LF · Primary · 18″

BL: 25.7T·m
Fs: 30Hz
Le: 1.56mH
Re: 4.3Ω
Sd: 1220cm²
Mms: 284g
Qes: 0.36
Qms: 3.6
Qts: 0.33
SPL: 93.6dB
Vas: 193L
Xmax: 15mm
Xmech: 58
Power: 1500W
Impedance: 8Ω
Sensitivity: 97dB
Low limit: 25Hz
Power Program: 3000
Calculated sensitivity †: 93.6dB
High limit: 1000Hz
Manufacturer sensitivity: 97dB
Min. impedance: 6Ω
Voice coil: 102mm
Weight: 9kg
Diameter: 465mm
Cutout: 424mm

Compare

Same-size drivers, compared with the LF18N408. Clear differences are green when better and red when worse.

This driverLF18N408

Best price

–

30 Hz

Qts

0.33

Vas

193 L

25.7 T·m

Xmax

15 mm

Sensitivity

93.6 dB

Power

1500 W

B&C18TBX100

£184.81

Fs34 Hz +13%

Qts0.35 +6%

Vas212 L +10%

BL25.5 T·m –

Xmax9 mm −40%

Sensitivity95.6 dB +2

B&C18RBX100

£226.58

Fs40 Hz +33%

Qts0.34 +3%

Vas220 L +14%

BL25.1 T·m –

Xmax10 mm −33%

Sensitivity98 dB +4.4

B&C18PZW100

£227.00

Fs37 Hz +23%

Qts0.36 +9%

Vas186 L −4%

BL25.5 T·m –

Xmax8 mm −47%

Sensitivity96 dB +2.4

PRV Audio18SW3600

£239.31

Fs33 Hz +8%

Qts0.36 +9%

Vas279.7 L +45%

BL25.5 T·m –

Xmax13.3 mm −12%

Sensitivity96.1 dB +2.5

FaitalPRO18HP1060

£245.81

Fs35 Hz +17%

Qts0.37 +12%

Vas200.3 L +4%

BL24.8 T·m −4%

Xmax12.4 mm −17%

Sensitivity95.6 dB +2

Beyma18LEX1600FE

£277.00

Fs34 Hz +13%

Qts0.38 +15%

Vas188 L –

BL26.9 T·m +5%

Xmax13 mm −13%

Sensitivity94.7 dB +1.1

Eighteen Sound18LW2420

£279.00

Fs32 Hz +7%

Qts0.33 –

Vas252 L +31%

BL25.3 T·m –

Xmax10 mm −33%

Sensitivity95.8 dB +2.2

Beyma18LEX1200ND

£279.79

Fs36 Hz +20%

Qts0.33 –

Vas219 L +13%

BL26.4 T·m –

Xmax11 mm −27%

Sensitivity96.7 dB +3.1

FaneCOLOSSUS 18SB

£280.00

Fs36 Hz +20%

Qts0.35 +5%

Vas199 L +3%

BL24 T·m −7%

Xmax8.3 mm −45%

Sensitivity96.1 dB +2.5

Oberton18XB1301DS

£284.15

Fs36 Hz +19%

Qts0.30 −8%

Vas172.9 L −10%

BL26.9 T·m +5%

Xmax12 mm −20%

Sensitivity96 dB +2.4

Eighteen Sound18LW2600

£297.25

Fs31 Hz +3%

Qts0.29 −12%

Vas187 L −3%

BL31 T·m +21%

Xmax14.8 mm –

Sensitivity94.7 dB +1.1

FaitalPRO18HW1070

£325.00

Fs32 Hz +7%

Qts0.38 +15%

Vas195.9 L –

BL27 T·m +5%

Xmax13 mm −13%

Sensitivity94.2 dB +0.6

RCFLF18N405

£325.54

Fs30 Hz –

Qts0.32 −3%

Vas227 L +18%

BL26.5 T·m +3%

Xmax14 mm −7%

Sensitivity94.6 dB +1

B&C18SW100

£330.74

Fs35 Hz +17%

Qts0.38 +15%

Vas180 L −7%

BL26.1 T·m –

Xmax12.5 mm −17%

Sensitivity94.9 dB +1.3

Eighteen Sound18NLW4100

£371.77

Fs31 Hz +3%

Qts0.34 +3%

Vas180 L −7%

BL29 T·m +13%

Xmax15 mm –

Sensitivity93.9 dB –

FaitalPRO18XL1600

£399.95

Fs32 Hz +7%

Qts0.36 +9%

Vas211.4 L +10%

BL26.7 T·m +4%

Xmax12.9 mm −14%

Sensitivity94.8 dB +1.2

B&C18SW115

£430.38

Fs32 Hz +7%

Qts0.30 −9%

Vas187 L −3%

BL30.3 T·m +18%

Xmax14 mm −7%

Sensitivity94.9 dB +1.3

Dayton AudioRSS460HO-4

£442.94

Fs19 Hz −37%

Qts0.32 −3%

Vas272 L +41%

BL23.4 T·m −9%

Xmax12.8 mm −15%

Sensitivity89.2 dB −4.4

Sica18 K 4 PL

£447.92

Fs37 Hz +23%

Qts0.32 −3%

Vas201 L +4%

BL26.8 T·m +4%

Xmax6.5 mm −57%

Sensitivity96.6 dB +3

BMS18N850V2

£457.13

Fs30 Hz –

Qts0.33 –

Vas243 L +26%

BL25.4 T·m –

Xmax12 mm −20%

Sensitivity94.7 dB +1.1

Eighteen Sound18NLW4500

£468.89

Fs35 Hz +17%

Qts0.33 –

Vas151 L −22%

BL30.3 T·m +18%

Xmax15.3 mm –

Sensitivity94.8 dB +1.2

Eighteen Sound18NLS4000

£486.84

Fs27 Hz −10%

Qts0.35 +6%

Vas168 L −13%

BL24.2 T·m −6%

Xmax22.3 mm +49%

Sensitivity91.7 dB −1.9

Eighteen Sound18NLW9000

£550.00

Fs34 Hz +13%

Qts0.31 −6%

Vas206 L +7%

BL28 T·m +9%

Xmax14 mm −7%

Sensitivity96.1 dB +2.5

Eighteen Sound18NTLW5000

£550.00

Fs32 Hz +7%

Qts0.32 −3%

Vas176 L −9%

BL31.3 T·m +22%

Xmax17.5 mm +17%

Sensitivity94.5 dB +0.9

B&C18HTX100

£809.86

Fs44 Hz +47%

Qts0.32 −3%

Vas173 L −10%

BL26.3 T·m –

Xmax13 mm −13%

Sensitivity98.4 dB +4.8

No photo

Precision DevicesPD.1845-1N

No current price

Fs34 Hz +14%

Qts0.32 –

Vas179.0 L −7%

BL26.4 T·m –

Xmax16 mm +7%

Sensitivity95.3 dB +1.7

Eighteen Sound18LW2500

No current price

Fs34 Hz +13%

Qts0.33 –

Vas135 L −30%

BL30 T·m +17%

Xmax15 mm –

Sensitivity94 dB –

Eighteen Sound18NLW4000

No current price

Fs34 Hz +13%

Qts0.33 –

Vas135 L −30%

BL30 T·m +17%

Xmax15 mm –

Sensitivity94 dB –

Oberton18NXB1600

No current price

Fs32 Hz +8%

Qts0.30 −8%

Vas173.1 L −10%

BL29.6 T·m +15%

Xmax13.5 mm −10%

Sensitivity94.5 dB +0.9

FaneCOLOSSUS 18XB

No current price

Fs33 Hz +10%

Qts0.34 –

Vas236 L +22%

BL25.9 T·m –

Xmax7.5 mm −50%

Sensitivity95.8 dB +2.2

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
Audio Video Parts Checked 25 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22% Import VAT and duty may apply	£308.84		Special order	Visit shop at Audio Video Parts
Audio Video Parts Checked 25 Oct 2026 · Ships from Italy · 8 Ω · Source: inc VAT · 22% Import VAT and duty may apply	£308.84		Special order	Visit shop at Audio Video Parts