6.5-inch LF driver · Prestige series · 26 mm voice coil · 40 W

SEAS H1794-08 FEA18RCZ 8Ω

Name: SEAS H1794-08 FEA18RCZ 8 Ohm
Brand: SEAS
SKU: H1794-08 FEA18RCZ
Availability: InStock

8 Ω · 45–20000 Hz

£152.39

0.5%

RumoH · Ships from Netherlands · All 2 offers

Open in 00 Simulator

Fs: 42Hz
Xmax: 3mm
SPL: 89dB
Pe: 40W
BL: 6.6T·m
Vd: 41cm³
Qts: 0.39
Vas: 31L

See all 25 specs

Published graphs

SEAS H1794-08 FEA18RCZ manufacturer graph 1

Specifications

Published by SEAS

Manufacturer page

Datasheet PDF

SEAS H1794-08 FEA18RCZ is a 6.5-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 42 Hz, Qts 0.39, Vas 31 L, Xmax 3 mm, sensitivity 89.4 dB, plus 41 cm³ Vd and 100 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 £152.39.

The published T/S values agree with each other

Thiele/Small

Fs: 42Hz
Qts: 0.39
Qes: 0.42
Qms: 6.3
Vas: 31L
Re: 5.7Ω
Le: 0.49mH

Motor and cone

BL: 6.6T·m
Sd: 136cm²
Mms: 12g
Xmax: 3mm
Vd †: 41cm³
Voice coil: 26mm
Flux density: 1.10T

Power and response

Sensitivity †: 89.4dB
Manufacturer sensitivity: 89.7dB
Power: 40W
Impedance: 8Ω
Range: 45–20000Hz
EBP †: 100 · Sealed or vented

Size and mounting

Weight: 1.8kg

Other published values

Cms: 1.19mm/N
Rms: 0.51kg/s
Xmech: 7
Power Peak: 110

† Calculated by bits from the published values

What this validation status means

Everything else SEAS lists

LF · Primary · 6.5″

BL: 6.6T·m
Fs: 42Hz
Le: 0.49mH
Re: 5.7Ω
Sd: 136cm²
Cms: 1.19mm/N
Mms: 12g
Qes: 0.42
Qms: 6.3
Qts: 0.39
Rms: 0.51kg/s
SPL: 89.4dB
Vas: 31L
Xmax: 3mm
Xmech: 7
Power: 40W
Impedance: 8Ω
Power Peak: 110
Flux density: 1.10T
Sensitivity: 89.7dB
Low limit: 45Hz
Calculated sensitivity †: 89.4dB
High limit: 20000Hz
Manufacturer sensitivity: 89.7dB
Voice coil: 26mm
Weight: 1.8kg

Compare

Same-size drivers, compared with the H1794-08 FEA18RCZ. Clear differences are green when better and red when worse.

This driverH1794-08 FEA18RCZ

Best price

£152.39

42 Hz

Qts

0.39

Vas

31 L

6.6 T·m

Xmax

3 mm

Sensitivity

89.4 dB

Power

40 W

SB AcousticsSB16PFCR25-8

£24.27 · 84% less

Fs38 Hz −10%

Qts0.40 –

Vas27 L −13%

BL6.2 T·m −6%

Xmax4.5 mm +50%

Sensitivity86.9 dB −2.5

SB AcousticsSB16PFC25-8

£27.08 · 82% less

Fs38 Hz −10%

Qts0.40 –

Vas27 L −13%

BL6.2 T·m −6%

Xmax4.5 mm +50%

Sensitivity86.9 dB −2.5

SB AcousticsSB16FRPC25-7

£30.52 · 80% less

Fs44 Hz +5%

Qts0.46 +18%

Vas31 L –

BL5.4 T·m −18%

Xmax3.0 mm –

Sensitivity89.4 dB –

Dayton AudioSIG180-4

£41.13 · 73% less

Fs41 Hz −4%

Qts0.38 –

Vas23.2 L −25%

BL6.6 T·m –

Xmax5 mm +67%

Sensitivity87.8 dB −1.6

WavecorWF146WA06

£53.11 · 65% less

Fs40 Hz −5%

Qts0.36 −8%

Vas16.6 L −46%

BL6.3 T·m −5%

Xmax3 mm –

Sensitivity86.5 dB −2.9

WavecorWF146WA05

£53.11 · 65% less

Fs41 Hz –

Qts0.38 –

Vas15.2 L −51%

BL5 T·m −24%

Xmax3 mm –

Sensitivity86.2 dB −3.2

SB AcousticsSB17NRX2C35-8

£55.41 · 64% less

Fs37 Hz −13%

Qts0.42 +8%

Vas27 L −13%

BL6.3 T·m −5%

Xmax5.5 mm +83%

Sensitivity86.5 dB −2.9

Scanspeak18W/4424G00

£58.61 · 62% less

Fs49 Hz +17%

Qts0.38 –

Vas24.1 L −22%

BL5.2 T·m −21%

Xmax2.8 mm −7%

Sensitivity90.3 dB +0.9

CIAREHWB160

£65.31 · 57% less

Fs43 Hz –

Qts0.37 −5%

Vas28 L −10%

BL7.3 T·m +11%

Xmax4.5 mm +50%

Sensitivity89.4 dB –

SB AcousticsSB17NAC35-8

£70.75 · 54% less

Fs32 Hz −25%

Qts0.42 +8%

Vas33 L +6%

BL6.2 T·m −6%

Xmax5.5 mm +83%

Sensitivity85.6 dB −3.8

MonacorSPH-170

£80.38 · 47% less

Fs38 Hz −10%

Qts0.44 +13%

Vas37 L +19%

BL5.9 T·m −11%

Xmax3 mm –

Sensitivity87.7 dB −1.7

WavecorWF168WA01

£96.71 · 37% less

Fs48 Hz +13%

Qts0.43 +10%

Vas24.6 L −21%

BL5.1 T·m −23%

Xmax3 mm –

Sensitivity89.6 dB –

WavecorWF168WA05

£102.24 · 33% less

Fs40 Hz −5%

Qts0.42 +8%

Vas27.7 L −11%

BL5 T·m −24%

Xmax3 mm –

Sensitivity88 dB −1.4

RS SpeakersMW 174.38 FIBONACCI

£145.69 · 4% less

Fs46 Hz +9%

Qts0.39 –

Vas18.7 L −40%

BL7.0 T·m +7%

Xmax4.5 mm +50%

Sensitivity88.3 dB −1.1

Scanspeak15W/8531K00

£150.70 · 1% less

Fs39 Hz −7%

Qts0.38 –

Vas16.7 L −46%

BL6.6 T·m –

Xmax6.5 mm +117%

Sensitivity85.8 dB −3.6

Scanspeak15W/8534T00

£154.86 · 2% more

Fs32 Hz −24%

Qts0.39 –

Vas30 L −3%

BL5.5 T·m −17%

Xmax5 mm +67%

Sensitivity85.6 dB −3.8

Scanspeak15W/8530K00

£157.03 · 3% more

Fs39 Hz −7%

Qts0.39 –

Vas16 L −48%

BL6.6 T·m –

Xmax6.5 mm +117%

Sensitivity85.5 dB −3.9

Scanspeak18W/8542-10

£157.04 · 3% more

Fs43 Hz –

Qts0.35 −10%

Vas26 L −16%

BL6.9 T·m +5%

Xmax6.5 mm +117%

Sensitivity88.7 dB −0.7

Scanspeak15M/8631G00

£167.42 · 10% more

Fs42 Hz –

Qts0.35 −10%

Vas16.2 L −48%

BL6.8 T·m +3%

Xmax3 mm –

Sensitivity87.1 dB −2.3

Scanspeak18WU/8747T00

£284.64 · 87% more

Fs36 Hz −14%

Qts0.38 –

Vas36.2 L +17%

BL7.4 T·m +12%

Xmax9 mm +200%

Sensitivity88 dB −1.4

Scanspeak18WU/8741T00

£300.68 · 97% more

Fs35 Hz −17%

Qts0.39 –

Vas37.1 L +20%

BL7.3 T·m +11%

Xmax9 mm +200%

Sensitivity87.6 dB −1.8

SEASE0018-08S W18E001

£376.75 · 147% more

Fs34 Hz −19%

Qts0.42 +8%

Vas30 L −3%

BL6.6 T·m –

Xmax5 mm +67%

Sensitivity85.8 dB −3.6

SEASE0117-08 W19NX004

£502.34 · 230% more

Fs33 Hz −21%

Qts0.39 –

Vas33 L +6%

BL7.9 T·m +20%

Xmax7 mm +133%

Sensitivity86.5 dB −2.9

Tang BandW6-623I

No current price

Fs46 Hz +10%

Qts0.41 +5%

Vas29.8 L −4%

BL6.7 T·m –

Xmax4 mm +33%

Sensitivity90.1 dB +0.7

HiViS6.5R

No current price

Fs41 Hz –

Qts0.38 –

Vas23.2 L −25%

BL6.5 T·m –

Xmax5.8 mm +93%

Sensitivity87.8 dB −1.6

SB AcousticsSB17BAC35-8-COAX

No current price

Fs35 Hz −16%

Qts0.33 −15%

Vas33.1 L +7%

BL5.7 T·m −14%

Xmax3.1 mm +3%

Sensitivity88.1 dB −1.3

HiViSS6.5

No current price

Fs42 Hz –

Qts0.39 –

Vas24.8 L −20%

BL6.4 T·m −3%

Xmax5.8 mm +93%

Sensitivity88.1 dB −1.3

HiViSS6.5R

No current price

Fs42 Hz –

Qts0.39 –

Vas21.6 L −30%

BL6.5 T·m –

Xmax5.8 mm +93%

Sensitivity87.7 dB −1.7

Supravox165 GMF

No current price

Fs70 Hz +67%

Qts0.39 –

Vas40 L +29%

BL5.6 T·m −15%

Xmax6 mm +100%

Sensitivity97.2 dB +7.8

KartesianSUB185_VKI

No current price

Fs28 Hz −33%

Qts0.41 +5%

Vas38.6 L +25%

BL6.9 T·m +5%

Xmax15 mm +400%

Sensitivity84.8 dB −4.6

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
RumoH Checked 25 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£152.39, the lowest price		Stock not listed	Visit shop at RumoH
SoundImports Checked 25 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£153.19	0.5% above the lowest price	Back order	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

Recent changes

20 AprSoundImports£146.49 → £153.19Up 4.6% from £146.49

bits00 AUDIO

6.5-inch LF driver · Prestige series · 26 mm voice coil · 40 W

SEAS H1794-08 FEA18RCZ 8Ω

8 Ω · 45–20000 Hz

£152.39

0.5%

RumoH · Ships from Netherlands · All 2 offers

Open in 00 Simulator

Fs: 42Hz
Xmax: 3mm
SPL: 89dB
Pe: 40W
BL: 6.6T·m
Vd: 41cm³
Qts: 0.39
Vas: 31L

See all 25 specs

Published graphs

Specifications

Published by SEAS

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 42Hz
Qts: 0.39
Qes: 0.42
Qms: 6.3
Vas: 31L
Re: 5.7Ω
Le: 0.49mH

Motor and cone

BL: 6.6T·m
Sd: 136cm²
Mms: 12g
Xmax: 3mm
Vd †: 41cm³
Voice coil: 26mm
Flux density: 1.10T

Power and response

Sensitivity †: 89.4dB
Manufacturer sensitivity: 89.7dB
Power: 40W
Impedance: 8Ω
Range: 45–20000Hz
EBP †: 100 · Sealed or vented

Size and mounting

Weight: 1.8kg

Other published values

Cms: 1.19mm/N
Rms: 0.51kg/s
Xmech: 7
Power Peak: 110

† Calculated by bits from the published values

What this validation status means

Everything else SEAS lists

LF · Primary · 6.5″

BL: 6.6T·m
Fs: 42Hz
Le: 0.49mH
Re: 5.7Ω
Sd: 136cm²
Cms: 1.19mm/N
Mms: 12g
Qes: 0.42
Qms: 6.3
Qts: 0.39
Rms: 0.51kg/s
SPL: 89.4dB
Vas: 31L
Xmax: 3mm
Xmech: 7
Power: 40W
Impedance: 8Ω
Power Peak: 110
Flux density: 1.10T
Sensitivity: 89.7dB
Low limit: 45Hz
Calculated sensitivity †: 89.4dB
High limit: 20000Hz
Manufacturer sensitivity: 89.7dB
Voice coil: 26mm
Weight: 1.8kg

Compare

Same-size drivers, compared with the H1794-08 FEA18RCZ. Clear differences are green when better and red when worse.

This driverH1794-08 FEA18RCZ

Best price

£152.39

42 Hz

Qts

0.39

Vas

31 L

6.6 T·m

Xmax

3 mm

Sensitivity

89.4 dB

Power

40 W

SB AcousticsSB16PFCR25-8

£24.27 · 84% less

Fs38 Hz −10%

Qts0.40 –

Vas27 L −13%

BL6.2 T·m −6%

Xmax4.5 mm +50%

Sensitivity86.9 dB −2.5

SB AcousticsSB16PFC25-8

£27.08 · 82% less

Fs38 Hz −10%

Qts0.40 –

Vas27 L −13%

BL6.2 T·m −6%

Xmax4.5 mm +50%

Sensitivity86.9 dB −2.5

SB AcousticsSB16FRPC25-7

£30.52 · 80% less

Fs44 Hz +5%

Qts0.46 +18%

Vas31 L –

BL5.4 T·m −18%

Xmax3.0 mm –

Sensitivity89.4 dB –

Dayton AudioSIG180-4

£41.13 · 73% less

Fs41 Hz −4%

Qts0.38 –

Vas23.2 L −25%

BL6.6 T·m –

Xmax5 mm +67%

Sensitivity87.8 dB −1.6

WavecorWF146WA06

£53.11 · 65% less

Fs40 Hz −5%

Qts0.36 −8%

Vas16.6 L −46%

BL6.3 T·m −5%

Xmax3 mm –

Sensitivity86.5 dB −2.9

WavecorWF146WA05

£53.11 · 65% less

Fs41 Hz –

Qts0.38 –

Vas15.2 L −51%

BL5 T·m −24%

Xmax3 mm –

Sensitivity86.2 dB −3.2

SB AcousticsSB17NRX2C35-8

£55.41 · 64% less

Fs37 Hz −13%

Qts0.42 +8%

Vas27 L −13%

BL6.3 T·m −5%

Xmax5.5 mm +83%

Sensitivity86.5 dB −2.9

Scanspeak18W/4424G00

£58.61 · 62% less

Fs49 Hz +17%

Qts0.38 –

Vas24.1 L −22%

BL5.2 T·m −21%

Xmax2.8 mm −7%

Sensitivity90.3 dB +0.9

CIAREHWB160

£65.31 · 57% less

Fs43 Hz –

Qts0.37 −5%

Vas28 L −10%

BL7.3 T·m +11%

Xmax4.5 mm +50%

Sensitivity89.4 dB –

SB AcousticsSB17NAC35-8

£70.75 · 54% less

Fs32 Hz −25%

Qts0.42 +8%

Vas33 L +6%

BL6.2 T·m −6%

Xmax5.5 mm +83%

Sensitivity85.6 dB −3.8

MonacorSPH-170

£80.38 · 47% less

Fs38 Hz −10%

Qts0.44 +13%

Vas37 L +19%

BL5.9 T·m −11%

Xmax3 mm –

Sensitivity87.7 dB −1.7

WavecorWF168WA01

£96.71 · 37% less

Fs48 Hz +13%

Qts0.43 +10%

Vas24.6 L −21%

BL5.1 T·m −23%

Xmax3 mm –

Sensitivity89.6 dB –

WavecorWF168WA05

£102.24 · 33% less

Fs40 Hz −5%

Qts0.42 +8%

Vas27.7 L −11%

BL5 T·m −24%

Xmax3 mm –

Sensitivity88 dB −1.4

RS SpeakersMW 174.38 FIBONACCI

£145.69 · 4% less

Fs46 Hz +9%

Qts0.39 –

Vas18.7 L −40%

BL7.0 T·m +7%

Xmax4.5 mm +50%

Sensitivity88.3 dB −1.1

Scanspeak15W/8531K00

£150.70 · 1% less

Fs39 Hz −7%

Qts0.38 –

Vas16.7 L −46%

BL6.6 T·m –

Xmax6.5 mm +117%

Sensitivity85.8 dB −3.6

Scanspeak15W/8534T00

£154.86 · 2% more

Fs32 Hz −24%

Qts0.39 –

Vas30 L −3%

BL5.5 T·m −17%

Xmax5 mm +67%

Sensitivity85.6 dB −3.8

Scanspeak15W/8530K00

£157.03 · 3% more

Fs39 Hz −7%

Qts0.39 –

Vas16 L −48%

BL6.6 T·m –

Xmax6.5 mm +117%

Sensitivity85.5 dB −3.9

Scanspeak18W/8542-10

£157.04 · 3% more

Fs43 Hz –

Qts0.35 −10%

Vas26 L −16%

BL6.9 T·m +5%

Xmax6.5 mm +117%

Sensitivity88.7 dB −0.7

Scanspeak15M/8631G00

£167.42 · 10% more

Fs42 Hz –

Qts0.35 −10%

Vas16.2 L −48%

BL6.8 T·m +3%

Xmax3 mm –

Sensitivity87.1 dB −2.3

Scanspeak18WU/8747T00

£284.64 · 87% more

Fs36 Hz −14%

Qts0.38 –

Vas36.2 L +17%

BL7.4 T·m +12%

Xmax9 mm +200%

Sensitivity88 dB −1.4

Scanspeak18WU/8741T00

£300.68 · 97% more

Fs35 Hz −17%

Qts0.39 –

Vas37.1 L +20%

BL7.3 T·m +11%

Xmax9 mm +200%

Sensitivity87.6 dB −1.8

SEASE0018-08S W18E001

£376.75 · 147% more

Fs34 Hz −19%

Qts0.42 +8%

Vas30 L −3%

BL6.6 T·m –

Xmax5 mm +67%

Sensitivity85.8 dB −3.6

SEASE0117-08 W19NX004

£502.34 · 230% more

Fs33 Hz −21%

Qts0.39 –

Vas33 L +6%

BL7.9 T·m +20%

Xmax7 mm +133%

Sensitivity86.5 dB −2.9

Tang BandW6-623I

No current price

Fs46 Hz +10%

Qts0.41 +5%

Vas29.8 L −4%

BL6.7 T·m –

Xmax4 mm +33%

Sensitivity90.1 dB +0.7

HiViS6.5R

No current price

Fs41 Hz –

Qts0.38 –

Vas23.2 L −25%

BL6.5 T·m –

Xmax5.8 mm +93%

Sensitivity87.8 dB −1.6

SB AcousticsSB17BAC35-8-COAX

No current price

Fs35 Hz −16%

Qts0.33 −15%

Vas33.1 L +7%

BL5.7 T·m −14%

Xmax3.1 mm +3%

Sensitivity88.1 dB −1.3

HiViSS6.5

No current price

Fs42 Hz –

Qts0.39 –

Vas24.8 L −20%

BL6.4 T·m −3%

Xmax5.8 mm +93%

Sensitivity88.1 dB −1.3

HiViSS6.5R

No current price

Fs42 Hz –

Qts0.39 –

Vas21.6 L −30%

BL6.5 T·m –

Xmax5.8 mm +93%

Sensitivity87.7 dB −1.7

Supravox165 GMF

No current price

Fs70 Hz +67%

Qts0.39 –

Vas40 L +29%

BL5.6 T·m −15%

Xmax6 mm +100%

Sensitivity97.2 dB +7.8

KartesianSUB185_VKI

No current price

Fs28 Hz −33%

Qts0.41 +5%

Vas38.6 L +25%

BL6.9 T·m +5%

Xmax15 mm +400%

Sensitivity84.8 dB −4.6

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
RumoH Checked 25 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£152.39, the lowest price		Stock not listed	Visit shop at RumoH
SoundImports Checked 25 Oct 2026 · Ships from Netherlands · 8 Ω · Source: inc VAT Import VAT and duty may apply	£153.19	0.5% above the lowest price	Back order	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

Recent changes

20 AprSoundImports£146.49 → £153.19Up 4.6% from £146.49