7-inch LF driver · Ellipticor series · 50 W

Scanspeak 18WE/4542T00 4Ω

Name: Scanspeak 18WE/4542T00 4 Ohm
Brand: Scanspeak
SKU: 18WE/4542T00
Availability: InStock

4 Ω

£882.00

7.3%

Falcon Acoustics · In stock · All 6 offers

Open in 00 Simulator

Fs: 46Hz
Xmax: 7.2mm
SPL: 93dB
Pe: 50W
BL: 8.1T·m
Vd: 96cm³
Qts: 0.25
Vas: 17L

See all 19 specs

Specifications

Published by Scanspeak

Manufacturer page

Datasheet PDF

Scanspeak 18WE/4542T00 is a 7-inch 4 ohm LF driver rated at 50 W RMS. The validated T/S data includes Fs 46 Hz, Qts 0.25, Vas 17.2 L, Xmax 7.2 mm, sensitivity 92.5 dB, plus 96 cm³ Vd. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £837.27.

Partial source evidence

Automated T/S checks passed, but some material low-frequency parameters are not published for this record.

Material fields not published: Qes, Mms

Manufacturer page linked
Datasheet linked
Canonical units normalized for comparison
Vd can be derived from Sd and Xmax

Manufacturer source Datasheet Validation methodology

Thiele/Small

Fs: 46Hz
Qts: 0.25
Qms: 5.6
Vas: 17.2L
Re: 3.4Ω
Le: 0.10mH

Motor and cone

BL: 8.1T·m
Sd: 133cm²
Xmax: 7.2mm
Vd †: 96cm³

Power and response

Sensitivity: 92.5dB
Power: 50W
Impedance: 4Ω
Min. impedance: 4.1Ω

Size and mounting

Diameter: 180mm

Other published values

Cms: 0.68mm/N
Rms: 0.90kg/s
Xmech: 12
Power Peak: 100

† Calculated by bits from the published values

What this validation status means

Everything else Scanspeak lists

LF · Primary · 7″

BL: 8.1T·m
Fs: 46Hz
Le: 0.10mH
Re: 3.4Ω
Sd: 133cm²
Cms: 0.68mm/N
Qms: 5.6
Qts: 0.25
Rms: 0.90kg/s
SPL: 92.5dB
Vas: 17.2L
Xmax: 7.2mm
Xmech: 12
Power: 50W
Impedance: 4Ω
Power Peak: 100
Sensitivity: 92.5dB
Manufacturer sensitivity: 92.5dB
Min. impedance: 4.1Ω
Diameter: 180mm

Compare

Same-size drivers, compared with the 18WE/4542T00. Clear differences are green when better and red when worse.

This driver18WE/4542T00

Best price

£837.27

46 Hz

Qts

0.25

Vas

17.2 L

8.1 T·m

Xmax

7.2 mm

Sensitivity

92.5 dB

Power

50 W

PeerlessHDS-P830874

£33.66 · 96% less

Fs61 Hz +33%

Qts0.51 +104%

Vas10.6 L −38%

BL8.7 T·m +8%

Xmax7.3 mm –

Sensitivity88.1 dB −4.4

PeerlessHDS-P835025

£37.03 · 96% less

Fs43 Hz −7%

Qts0.42 +68%

Vas19 L +10%

BL8.6 T·m +6%

Xmax7.4 mm –

Sensitivity87.1 dB −5.4

CIARECW162

£47.61 · 94% less

Fs40 Hz −13%

Qts0.21 −16%

Vas26 L +51%

BL7.4 T·m −9%

Xmax7 mm –

Sensitivity90.6 dB −1.9

Scanspeak15W/8424G00

£49.40 · 94% less

Fs46 Hz –

Qts0.25 –

Vas14.5 L −16%

BL6.6 T·m −19%

Xmax2.6 mm −64%

Sensitivity89.2 dB −3.3

Sica6 H 1.5 CP

£55.18 · 93% less

Fs46 Hz –

Qts0.35 +40%

Vas16.6 L −3%

BL8.4 T·m +4%

Xmax6 mm −17%

Sensitivity88.3 dB −4.2

Scanspeak15W/8434G00

£56.10 · 93% less

Fs45 Hz –

Qts0.25 –

Vas12.8 L −26%

BL7.3 T·m −10%

Xmax4.2 mm −42%

Sensitivity88.4 dB −4.1

PeerlessHDS-P830875

£56.87 · 93% less

Fs48 Hz +4%

Qts0.39 +56%

Vas18.6 L +8%

BL8.7 T·m +7%

Xmax7.3 mm –

Sensitivity88.7 dB −3.8

PeerlessHDS-P830990

£58.57 · 93% less

Fs56 Hz +22%

Qts0.43 +72%

Vas13.5 L −22%

BL8.6 T·m +6%

Xmax7.3 mm –

Sensitivity88.7 dB −3.8

Eighteen Sound6ND430

£109.14 · 87% less

Fs64 Hz +39%

Qts0.24 −4%

Vas12.2 L −29%

BL7.8 T·m −4%

Xmax5 mm −31%

Sensitivity93.1 dB +0.6

B&C8MDN51

£136.46 · 84% less

Fs68 Hz +48%

Qts0.27 +8%

Vas17.5 L –

BL17.8 T·m +120%

Xmax6 mm −17%

Sensitivity94.8 dB +2.3

Eighteen Sound8NW650

£138.53 · 83% less

Fs63 Hz +37%

Qts0.25 –

Vas17.8 L +3%

BL15.2 T·m +88%

Xmax5.5 mm −24%

Sensitivity94.2 dB +1.7

Scanspeak18W/8545K00

£144.00 · 83% less

Fs28 Hz −39%

Qts0.28 +12%

Vas46.4 L +170%

BL8.2 T·m –

Xmax6.5 mm −10%

Sensitivity87.3 dB −5.2

Scanspeak15W/8531K00

£150.70 · 82% less

Fs39 Hz −15%

Qts0.38 +52%

Vas16.7 L –

BL6.6 T·m −19%

Xmax6.5 mm −10%

Sensitivity85.8 dB −6.7

WavecorWF182BD13

£157.84 · 81% less

Fs38 Hz −17%

Qts0.26 +4%

Vas20.8 L +21%

BL6.9 T·m −15%

Xmax5.5 mm −24%

Sensitivity88.3 dB −4.2

WavecorSW182BD03

£161.18 · 81% less

Fs35 Hz −24%

Qts0.44 +76%

Vas12.7 L −26%

BL7.6 T·m −6%

Xmax7 mm –

Sensitivity82.9 dB −9.6

SB AcousticsMW19P-4

£165.40 · 80% less

Fs29 Hz −37%

Qts0.24 −4%

Vas61 L +255%

BL6.5 T·m −20%

Xmax6.8 mm −6%

Sensitivity89.6 dB −2.9

SB AcousticsMW19PNW-4

£168.40 · 80% less

Fs29 Hz −37%

Qts0.24 −4%

Vas61 L +255%

BL6.5 T·m −20%

Xmax6.8 mm −6%

Sensitivity89.6 dB −2.9

B&C8CXN51

£224.40 · 73% less

Fs68 Hz +48%

Qts0.27 +8%

Vas17 L –

BL12.6 T·m +56%

Xmax6 mm −17%

Sensitivity94.7 dB +2.2

Scanspeak15WU/8741T00

£301.39 · 64% less

Fs35 Hz −24%

Qts0.26 +4%

Vas19.9 L +16%

BL7.5 T·m −7%

Xmax9 mm +25%

Sensitivity86.9 dB −5.6

SEASE0097-08 W22NY003

£410.34 · 51% less

Fs21 Hz −54%

Qts0.29 +16%

Vas164 L +853%

BL8 T·m –

Xmax7 mm –

Sensitivity88.9 dB −3.6

SEASE0076-08 W19NX001

£586.08 · 30% less

Fs34 Hz −26%

Qts0.41 +64%

Vas24 L +40%

BL8.3 T·m –

Xmax7 mm –

Sensitivity85.2 dB −7.3

Scanspeak21WE/4542T00

£669.81 · 20% less

Fs38 Hz −17%

Qts0.28 +12%

Vas54 L +214%

BL8.2 T·m –

Xmax7.2 mm –

Sensitivity92 dB −0.5

Scanspeak18WE/8542T00

£837.27 · Same price

Fs50 Hz +9%

Qts0.32 +28%

Vas16 L −7%

BL9.7 T·m +20%

Xmax7.7 mm +7%

Sensitivity89.7 dB −2.8

LavoceCAN082.00K

No current price

Fs72 Hz +57%

Qts0.27 +8%

Vas15.1 L −12%

BL13.2 T·m +62%

Xmax6.7 mm −7%

Sensitivity94.8 dB +2.3

WavecorWF182BD14

No current price

Fs36 Hz −22%

Qts0.25 –

Vas23 L +34%

BL6.9 T·m −15%

Xmax5.5 mm −24%

Sensitivity88.2 dB −4.3

KartesianLOM165_VPA-H

No current price

Fs52 Hz +13%

Qts0.26 +4%

Vas17.4 L –

BL9.8 T·m +21%

Xmax3.5 mm −51%

Sensitivity92 dB −0.5

KartesianWOM180_VMS

No current price

Fs46 Hz –

Qts0.38 +52%

Vas21.8 L +27%

BL8.1 T·m –

Xmax8 mm +11%

Sensitivity90 dB −2.5

PurifiPTT6.5M04-NAA-08

No current price

Fs36 Hz −22%

Qts0.27 +8%

Vas22.7 L +32%

BL8.2 T·m –

Xmax2.9 mm −60%

Sensitivity87.8 dB −4.7

Dayton AudioPS65LP-4

No current price

Fs67 Hz +46%

Qts0.24 −4%

Vas17.3 L –

BL6 T·m −26%

Xmax4 mm −44%

Sensitivity95.1 dB +2.6

PurifiPTT6.5W04-NFA-06

No current price

Fs32 Hz −30%

Qts0.26 +4%

Vas28.3 L +65%

BL7.6 T·m −6%

Xmax5.9 mm −18%

Sensitivity87.2 dB −5.3

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
Falcon Acoustics Checked 24 Oct 2026 · Source: inc VAT · 20%	£882.00, the lowest price		In stock	Visit shop at Falcon Acoustics
Willys-Hifi Checked 24 Oct 2026 · Source: ex VAT · 20%	£951.55	7.9% above the lowest price	Stock not listed	Visit shop at Willys-Hifi
Hifisound Checked 24 Oct 2026 · Ships from Germany · 4 Ω · Source: inc VAT · 19% Import VAT and duty may apply · under 7 working days	£779.20		Back order (under 7 working days)	Visit shop at Hifisound
Lautsprechershop Checked 24 Oct 2026 · Ships from Germany · 4 Ω · Source: inc VAT · 19% Import VAT and duty may apply	£787.49		Special order	Visit shop at Lautsprechershop
SoundImports Checked 24 Oct 2026 · Ships from Netherlands · Source: inc VAT Import VAT and duty may apply	£837.27		1 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

Recent changes

1 OctWillys-Hifi£974.95 → £951.55Down 2.4% from £974.95
30 SepWillys-Hifi£970.95 → £974.95Up 0.4% from £970.95
29 SepWillys-Hifi£972.95 → £970.95Down 0.2% from £972.95

bits00 AUDIO

7-inch LF driver · Ellipticor series · 50 W

Scanspeak 18WE/4542T00 4Ω

4 Ω

£882.00

7.3%

Falcon Acoustics · In stock · All 6 offers

Open in 00 Simulator

Fs: 46Hz
Xmax: 7.2mm
SPL: 93dB
Pe: 50W
BL: 8.1T·m
Vd: 96cm³
Qts: 0.25
Vas: 17L

See all 19 specs

Specifications

Published by Scanspeak

Manufacturer page

Datasheet PDF

Partial source evidence

Automated T/S checks passed, but some material low-frequency parameters are not published for this record.

Material fields not published: Qes, Mms

Manufacturer page linked
Datasheet linked
Canonical units normalized for comparison
Vd can be derived from Sd and Xmax

Manufacturer source Datasheet Validation methodology

Thiele/Small

Fs: 46Hz
Qts: 0.25
Qms: 5.6
Vas: 17.2L
Re: 3.4Ω
Le: 0.10mH

Motor and cone

BL: 8.1T·m
Sd: 133cm²
Xmax: 7.2mm
Vd †: 96cm³

Power and response

Sensitivity: 92.5dB
Power: 50W
Impedance: 4Ω
Min. impedance: 4.1Ω

Size and mounting

Diameter: 180mm

Other published values

Cms: 0.68mm/N
Rms: 0.90kg/s
Xmech: 12
Power Peak: 100

† Calculated by bits from the published values

What this validation status means

Everything else Scanspeak lists

LF · Primary · 7″

BL: 8.1T·m
Fs: 46Hz
Le: 0.10mH
Re: 3.4Ω
Sd: 133cm²
Cms: 0.68mm/N
Qms: 5.6
Qts: 0.25
Rms: 0.90kg/s
SPL: 92.5dB
Vas: 17.2L
Xmax: 7.2mm
Xmech: 12
Power: 50W
Impedance: 4Ω
Power Peak: 100
Sensitivity: 92.5dB
Manufacturer sensitivity: 92.5dB
Min. impedance: 4.1Ω
Diameter: 180mm

Compare

Same-size drivers, compared with the 18WE/4542T00. Clear differences are green when better and red when worse.

This driver18WE/4542T00

Best price

£837.27

46 Hz

Qts

0.25

Vas

17.2 L

8.1 T·m

Xmax

7.2 mm

Sensitivity

92.5 dB

Power

50 W

PeerlessHDS-P830874

£33.66 · 96% less

Fs61 Hz +33%

Qts0.51 +104%

Vas10.6 L −38%

BL8.7 T·m +8%

Xmax7.3 mm –

Sensitivity88.1 dB −4.4

PeerlessHDS-P835025

£37.03 · 96% less

Fs43 Hz −7%

Qts0.42 +68%

Vas19 L +10%

BL8.6 T·m +6%

Xmax7.4 mm –

Sensitivity87.1 dB −5.4

CIARECW162

£47.61 · 94% less

Fs40 Hz −13%

Qts0.21 −16%

Vas26 L +51%

BL7.4 T·m −9%

Xmax7 mm –

Sensitivity90.6 dB −1.9

Scanspeak15W/8424G00

£49.40 · 94% less

Fs46 Hz –

Qts0.25 –

Vas14.5 L −16%

BL6.6 T·m −19%

Xmax2.6 mm −64%

Sensitivity89.2 dB −3.3

Sica6 H 1.5 CP

£55.18 · 93% less

Fs46 Hz –

Qts0.35 +40%

Vas16.6 L −3%

BL8.4 T·m +4%

Xmax6 mm −17%

Sensitivity88.3 dB −4.2

Scanspeak15W/8434G00

£56.10 · 93% less

Fs45 Hz –

Qts0.25 –

Vas12.8 L −26%

BL7.3 T·m −10%

Xmax4.2 mm −42%

Sensitivity88.4 dB −4.1

PeerlessHDS-P830875

£56.87 · 93% less

Fs48 Hz +4%

Qts0.39 +56%

Vas18.6 L +8%

BL8.7 T·m +7%

Xmax7.3 mm –

Sensitivity88.7 dB −3.8

PeerlessHDS-P830990

£58.57 · 93% less

Fs56 Hz +22%

Qts0.43 +72%

Vas13.5 L −22%

BL8.6 T·m +6%

Xmax7.3 mm –

Sensitivity88.7 dB −3.8

Eighteen Sound6ND430

£109.14 · 87% less

Fs64 Hz +39%

Qts0.24 −4%

Vas12.2 L −29%

BL7.8 T·m −4%

Xmax5 mm −31%

Sensitivity93.1 dB +0.6

B&C8MDN51

£136.46 · 84% less

Fs68 Hz +48%

Qts0.27 +8%

Vas17.5 L –

BL17.8 T·m +120%

Xmax6 mm −17%

Sensitivity94.8 dB +2.3

Eighteen Sound8NW650

£138.53 · 83% less

Fs63 Hz +37%

Qts0.25 –

Vas17.8 L +3%

BL15.2 T·m +88%

Xmax5.5 mm −24%

Sensitivity94.2 dB +1.7

Scanspeak18W/8545K00

£144.00 · 83% less

Fs28 Hz −39%

Qts0.28 +12%

Vas46.4 L +170%

BL8.2 T·m –

Xmax6.5 mm −10%

Sensitivity87.3 dB −5.2

Scanspeak15W/8531K00

£150.70 · 82% less

Fs39 Hz −15%

Qts0.38 +52%

Vas16.7 L –

BL6.6 T·m −19%

Xmax6.5 mm −10%

Sensitivity85.8 dB −6.7

WavecorWF182BD13

£157.84 · 81% less

Fs38 Hz −17%

Qts0.26 +4%

Vas20.8 L +21%

BL6.9 T·m −15%

Xmax5.5 mm −24%

Sensitivity88.3 dB −4.2

WavecorSW182BD03

£161.18 · 81% less

Fs35 Hz −24%

Qts0.44 +76%

Vas12.7 L −26%

BL7.6 T·m −6%

Xmax7 mm –

Sensitivity82.9 dB −9.6

SB AcousticsMW19P-4

£165.40 · 80% less

Fs29 Hz −37%

Qts0.24 −4%

Vas61 L +255%

BL6.5 T·m −20%

Xmax6.8 mm −6%

Sensitivity89.6 dB −2.9

SB AcousticsMW19PNW-4

£168.40 · 80% less

Fs29 Hz −37%

Qts0.24 −4%

Vas61 L +255%

BL6.5 T·m −20%

Xmax6.8 mm −6%

Sensitivity89.6 dB −2.9

B&C8CXN51

£224.40 · 73% less

Fs68 Hz +48%

Qts0.27 +8%

Vas17 L –

BL12.6 T·m +56%

Xmax6 mm −17%

Sensitivity94.7 dB +2.2

Scanspeak15WU/8741T00

£301.39 · 64% less

Fs35 Hz −24%

Qts0.26 +4%

Vas19.9 L +16%

BL7.5 T·m −7%

Xmax9 mm +25%

Sensitivity86.9 dB −5.6

SEASE0097-08 W22NY003

£410.34 · 51% less

Fs21 Hz −54%

Qts0.29 +16%

Vas164 L +853%

BL8 T·m –

Xmax7 mm –

Sensitivity88.9 dB −3.6

SEASE0076-08 W19NX001

£586.08 · 30% less

Fs34 Hz −26%

Qts0.41 +64%

Vas24 L +40%

BL8.3 T·m –

Xmax7 mm –

Sensitivity85.2 dB −7.3

Scanspeak21WE/4542T00

£669.81 · 20% less

Fs38 Hz −17%

Qts0.28 +12%

Vas54 L +214%

BL8.2 T·m –

Xmax7.2 mm –

Sensitivity92 dB −0.5

Scanspeak18WE/8542T00

£837.27 · Same price

Fs50 Hz +9%

Qts0.32 +28%

Vas16 L −7%

BL9.7 T·m +20%

Xmax7.7 mm +7%

Sensitivity89.7 dB −2.8

LavoceCAN082.00K

No current price

Fs72 Hz +57%

Qts0.27 +8%

Vas15.1 L −12%

BL13.2 T·m +62%

Xmax6.7 mm −7%

Sensitivity94.8 dB +2.3

WavecorWF182BD14

No current price

Fs36 Hz −22%

Qts0.25 –

Vas23 L +34%

BL6.9 T·m −15%

Xmax5.5 mm −24%

Sensitivity88.2 dB −4.3

KartesianLOM165_VPA-H

No current price

Fs52 Hz +13%

Qts0.26 +4%

Vas17.4 L –

BL9.8 T·m +21%

Xmax3.5 mm −51%

Sensitivity92 dB −0.5

KartesianWOM180_VMS

No current price

Fs46 Hz –

Qts0.38 +52%

Vas21.8 L +27%

BL8.1 T·m –

Xmax8 mm +11%

Sensitivity90 dB −2.5

PurifiPTT6.5M04-NAA-08

No current price

Fs36 Hz −22%

Qts0.27 +8%

Vas22.7 L +32%

BL8.2 T·m –

Xmax2.9 mm −60%

Sensitivity87.8 dB −4.7

Dayton AudioPS65LP-4

No current price

Fs67 Hz +46%

Qts0.24 −4%

Vas17.3 L –

BL6 T·m −26%

Xmax4 mm −44%

Sensitivity95.1 dB +2.6

PurifiPTT6.5W04-NFA-06

No current price

Fs32 Hz −30%

Qts0.26 +4%

Vas28.3 L +65%

BL7.6 T·m −6%

Xmax5.9 mm −18%

Sensitivity87.2 dB −5.3

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
Falcon Acoustics Checked 24 Oct 2026 · Source: inc VAT · 20%	£882.00, the lowest price		In stock	Visit shop at Falcon Acoustics
Willys-Hifi Checked 24 Oct 2026 · Source: ex VAT · 20%	£951.55	7.9% above the lowest price	Stock not listed	Visit shop at Willys-Hifi
Hifisound Checked 24 Oct 2026 · Ships from Germany · 4 Ω · Source: inc VAT · 19% Import VAT and duty may apply · under 7 working days	£779.20		Back order (under 7 working days)	Visit shop at Hifisound
Lautsprechershop Checked 24 Oct 2026 · Ships from Germany · 4 Ω · Source: inc VAT · 19% Import VAT and duty may apply	£787.49		Special order	Visit shop at Lautsprechershop
SoundImports Checked 24 Oct 2026 · Ships from Netherlands · Source: inc VAT Import VAT and duty may apply	£837.27		1 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

Recent changes

1 OctWillys-Hifi£974.95 → £951.55Down 2.4% from £974.95
30 SepWillys-Hifi£970.95 → £974.95Up 0.4% from £970.95
29 SepWillys-Hifi£972.95 → £970.95Down 0.2% from £972.95