4.5-inch LF driver · Excel series

SEAS E0070-08 W12CY004 8Ω

Name: SEAS E0070-08 W12CY004 8 Ohm
Brand: SEAS
SKU: E0070-08 W12CY004
Availability: InStock

8 Ω

£384.15

Steady

SoundImports · 2 in stock · All 1 offer

Open in 00 Simulator

Fs: 48Hz
Xmax: 3mm
SPL: 83dB
Pe: –
BL: 5.9T·m
Vd: 15cm³
Qts: 0.38
Vas: 5L

See all 16 specs

Published graphs

SEAS E0070-08 W12CY004 manufacturer graph 1

Specifications

Published by SEAS

Manufacturer page

Datasheet PDF

SEAS E0070-08 W12CY004 is a 4.5-inch 8 ohm LF driver. The validated T/S data includes Fs 48 Hz, Qts 0.38, Vas 4.6 L, Xmax 3 mm, sensitivity 83 dB, plus 15 cm³ Vd and 117 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £384.15.

The published T/S values agree with each other

Thiele/Small

Fs: 48Hz
Qts: 0.38
Qes: 0.41
Qms: 6.1
Vas: 4.6L
Re: 5.5Ω

Motor and cone

BL: 5.9T·m
Sd: 50cm²
Mms: 8g
Xmax: 3mm
Vd †: 15cm³

Power and response

Sensitivity †: 83dB
Impedance: 8Ω
EBP †: 117 · Leans vented

Other published values

Cms: 1.31mm/N
Rms: 0.42kg/s

† Calculated by bits from the published values

What this validation status means

Everything else SEAS lists

LF · Primary · 4.5″

BL: 5.9T·m
Fs: 48Hz
Re: 5.5Ω
Sd: 50cm²
Cms: 1.31mm/N
Mms: 8g
Qes: 0.41
Qms: 6.1
Qts: 0.38
Rms: 0.42kg/s
SPL: 83dB
Vas: 4.6L
Xmax: 3mm
Impedance: 8Ω
Calculated sensitivity †: 83dB

Compare

Same-size drivers, compared with the E0070-08 W12CY004. Clear differences are green when better and red when worse.

This driverE0070-08 W12CY004

Best price

£384.15

48 Hz

Qts

0.38

Vas

4.6 L

5.9 T·m

Xmax

3 mm

Sensitivity

83 dB

Power

–

REDCATT5FHW

£16.17 · 96% less

Fs50 Hz +4%

Qts0.35 −8%

Vas6.5 L +42%

BL6.5 T·m +11%

Xmax3.2 mm +7%

Sensitivity85.4 dB +2.4

Dayton AudioDA115-8

£18.88 · 95% less

Fs60 Hz +25%

Qts0.41 +8%

Vas4.4 L −4%

BL5.7 T·m −3%

Xmax2.5 mm −17%

Sensitivity84.9 dB +1.9

Dayton AudioDS115-8

£20.39 · 95% less

Fs55 Hz +15%

Qts0.38 –

Vas4.3 L −6%

BL5.9 T·m –

Xmax4.1 mm +37%

Sensitivity84 dB +1

PeerlessSLS-P830945

£31.58 · 92% less

Fs56 Hz +17%

Qts0.40 +5%

Vas4.7 L –

BL6.2 T·m +5%

Xmax7 mm +133%

Sensitivity84.7 dB +1.7

MonacorSP-100/8

£31.76 · 92% less

Fs61 Hz +27%

Qts0.37 –

Vas4.7 L –

BL5.5 T·m −7%

Xmax2.5 mm −17%

Sensitivity85.9 dB +2.9

Dayton AudioRS125-8

£37.77 · 90% less

Fs59 Hz +23%

Qts0.34 −11%

Vas4.8 L +4%

BL5.7 T·m −4%

Xmax4 mm +33%

Sensitivity85.8 dB +2.8

WavecorWF118WA08

£47.60 · 88% less

Fs58 Hz +21%

Qts0.42 +11%

Vas4.9 L +7%

BL5.8 T·m –

Xmax4 mm +33%

Sensitivity85.3 dB +2.3

WavecorWF118WA02

£52.89 · 86% less

Fs65 Hz +35%

Qts0.44 +16%

Vas4.3 L −7%

BL5.8 T·m –

Xmax3 mm –

Sensitivity86.1 dB +3.1

SB AcousticsSB12NRX25-8

£54.32 · 86% less

Fs57 Hz +19%

Qts0.37 –

Vas5.3 L +15%

BL5.4 T·m −8%

Xmax10 mm +233%

Sensitivity85.8 dB +2.8

Tang BandW4-1320SIF

£58.91 · 85% less

Fs75 Hz +56%

Qts0.36 −5%

Vas5.2 L +14%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity89.2 dB +6.2

Tang BandW4-2414

£68.21 · 82% less

Fs65 Hz +35%

Qts0.40 +5%

Vas3.9 L −16%

BL5.5 T·m −7%

Xmax2.5 mm −17%

Sensitivity85.6 dB +2.6

Tang BandW4-1337SDF

£72.57 · 81% less

Fs70 Hz +46%

Qts0.34 −11%

Vas5.6 L +22%

BL5.3 T·m −10%

Xmax2.5 mm −17%

Sensitivity88.9 dB +5.9

WavecorWF118WA01

£77.95 · 80% less

Fs64 Hz +33%

Qts0.36 −5%

Vas4.3 L −7%

BL4.6 T·m −22%

Xmax3 mm –

Sensitivity86.8 dB +3.8

WavecorWF120BD11

£88.41 · 77% less

Fs58 Hz +21%

Qts0.39 –

Vas3.8 L −17%

BL4.2 T·m −29%

Xmax3 mm –

Sensitivity84.7 dB +1.7

SEASH1152-08 CA12RCY

£93.87 · 76% less

Fs57 Hz +19%

Qts0.31 −18%

Vas5 L +9%

BL6.3 T·m +8%

Xmax3 mm –

Sensitivity86.1 dB +3.1

Tang BandW5-2143

£115.26 · 70% less

Fs55 Hz +15%

Qts0.38 –

Vas19 L +313%

BL5.4 T·m −8%

Xmax2.5 mm −17%

Sensitivity90.7 dB +7.7

WavecorWF120BD14

£135.75 · 65% less

Fs58 Hz +20%

Qts0.46 +21%

Vas3.9 L −15%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity83.8 dB +0.8

SEASE0044-08S W12CY003

£204.86 · 47% less

Fs60 Hz +25%

Qts0.36 −5%

Vas4 L −13%

BL5.5 T·m −7%

Xmax3 mm –

Sensitivity85 dB +2

PurifiPTT4.0M08-NAC-03

£256.08 · 33% less

Fs50 Hz +4%

Qts0.32 −16%

Vas4.9 L +7%

BL7 T·m +19%

Xmax2.9 mm −3%

Sensitivity84.6 dB +1.6

SEASE0043-06S M15CH002

£281.70 · 27% less

Fs67 Hz +40%

Qts0.40 +5%

Vas6 L +30%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity87.4 dB +4.4

SEASE0021-08S W12CY001

£341.46 · 11% less

Fs45 Hz −6%

Qts0.36 −5%

Vas6 L +30%

BL5.4 T·m −8%

Xmax3 mm –

Sensitivity83.2 dB –

Tang BandW4-1320SJF

No current price

Fs75 Hz +56%

Qts0.38 –

Vas5.2 L +14%

BL5.1 T·m −13%

Xmax3 mm –

Sensitivity88.9 dB +5.9

Tang BandW4-1337SD

No current price

Fs70 Hz +46%

Qts0.37 –

Vas4.9 L +6%

BL5.4 T·m −9%

Xmax3 mm –

Sensitivity87.3 dB +4.3

Tang BandW4-1320SI

No current price

Fs75 Hz +56%

Qts0.38 –

Vas5.2 L +14%

BL5.1 T·m −13%

Xmax3 mm –

Sensitivity88.7 dB +5.7

WavecorWF120BD12

No current price

Fs57 Hz +18%

Qts0.38 –

Vas3.9 L −15%

BL4.2 T·m −29%

Xmax3 mm –

Sensitivity84.5 dB +1.5

Tang BandW4-992SD

No current price

Fs55 Hz +15%

Qts0.35 −8%

Vas5.7 L +24%

BL6.4 T·m +9%

Xmax3.5 mm +17%

Sensitivity85.8 dB +2.8

CIARECW131

No current price

Fs65 Hz +35%

Qts0.39 –

Vas5.3 L +15%

BL5.7 T·m −4%

Xmax4 mm +33%

Sensitivity87.1 dB +4.1

Tang BandW5-704D

No current price

Fs55 Hz +15%

Qts0.38 –

Vas11.6 L +152%

BL6.2 T·m +5%

Xmax3.3 mm +10%

Sensitivity88.2 dB +5.2

Tang BandW4-657D

No current price

Fs70 Hz +46%

Qts0.32 −16%

Vas5.6 L +22%

BL5.6 T·m −5%

Xmax3.3 mm +10%

Sensitivity89.4 dB +6.4

PurifiPTT4.0M04-NAC-03

No current price

Fs48 Hz –

Qts0.28 −26%

Vas5 L +9%

BL5.9 T·m –

Xmax2.9 mm −3%

Sensitivity84.7 dB +1.7

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

UK shops, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
SoundImports Checked 2 Oct 2026 · 8 Ω · Source: inc VAT	£384.15, the lowest price		2 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr

bits00 AUDIO

4.5-inch LF driver · Excel series

SEAS E0070-08 W12CY004 8Ω

8 Ω

£384.15

Steady

SoundImports · 2 in stock · All 1 offer

Open in 00 Simulator

Fs: 48Hz
Xmax: 3mm
SPL: 83dB
Pe: –
BL: 5.9T·m
Vd: 15cm³
Qts: 0.38
Vas: 5L

See all 16 specs

Published graphs

Specifications

Published by SEAS

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 48Hz
Qts: 0.38
Qes: 0.41
Qms: 6.1
Vas: 4.6L
Re: 5.5Ω

Motor and cone

BL: 5.9T·m
Sd: 50cm²
Mms: 8g
Xmax: 3mm
Vd †: 15cm³

Power and response

Sensitivity †: 83dB
Impedance: 8Ω
EBP †: 117 · Leans vented

Other published values

Cms: 1.31mm/N
Rms: 0.42kg/s

† Calculated by bits from the published values

What this validation status means

Everything else SEAS lists

LF · Primary · 4.5″

BL: 5.9T·m
Fs: 48Hz
Re: 5.5Ω
Sd: 50cm²
Cms: 1.31mm/N
Mms: 8g
Qes: 0.41
Qms: 6.1
Qts: 0.38
Rms: 0.42kg/s
SPL: 83dB
Vas: 4.6L
Xmax: 3mm
Impedance: 8Ω
Calculated sensitivity †: 83dB

Compare

Same-size drivers, compared with the E0070-08 W12CY004. Clear differences are green when better and red when worse.

This driverE0070-08 W12CY004

Best price

£384.15

48 Hz

Qts

0.38

Vas

4.6 L

5.9 T·m

Xmax

3 mm

Sensitivity

83 dB

Power

–

REDCATT5FHW

£16.17 · 96% less

Fs50 Hz +4%

Qts0.35 −8%

Vas6.5 L +42%

BL6.5 T·m +11%

Xmax3.2 mm +7%

Sensitivity85.4 dB +2.4

Dayton AudioDA115-8

£18.88 · 95% less

Fs60 Hz +25%

Qts0.41 +8%

Vas4.4 L −4%

BL5.7 T·m −3%

Xmax2.5 mm −17%

Sensitivity84.9 dB +1.9

Dayton AudioDS115-8

£20.39 · 95% less

Fs55 Hz +15%

Qts0.38 –

Vas4.3 L −6%

BL5.9 T·m –

Xmax4.1 mm +37%

Sensitivity84 dB +1

PeerlessSLS-P830945

£31.58 · 92% less

Fs56 Hz +17%

Qts0.40 +5%

Vas4.7 L –

BL6.2 T·m +5%

Xmax7 mm +133%

Sensitivity84.7 dB +1.7

MonacorSP-100/8

£31.76 · 92% less

Fs61 Hz +27%

Qts0.37 –

Vas4.7 L –

BL5.5 T·m −7%

Xmax2.5 mm −17%

Sensitivity85.9 dB +2.9

Dayton AudioRS125-8

£37.77 · 90% less

Fs59 Hz +23%

Qts0.34 −11%

Vas4.8 L +4%

BL5.7 T·m −4%

Xmax4 mm +33%

Sensitivity85.8 dB +2.8

WavecorWF118WA08

£47.60 · 88% less

Fs58 Hz +21%

Qts0.42 +11%

Vas4.9 L +7%

BL5.8 T·m –

Xmax4 mm +33%

Sensitivity85.3 dB +2.3

WavecorWF118WA02

£52.89 · 86% less

Fs65 Hz +35%

Qts0.44 +16%

Vas4.3 L −7%

BL5.8 T·m –

Xmax3 mm –

Sensitivity86.1 dB +3.1

SB AcousticsSB12NRX25-8

£54.32 · 86% less

Fs57 Hz +19%

Qts0.37 –

Vas5.3 L +15%

BL5.4 T·m −8%

Xmax10 mm +233%

Sensitivity85.8 dB +2.8

Tang BandW4-1320SIF

£58.91 · 85% less

Fs75 Hz +56%

Qts0.36 −5%

Vas5.2 L +14%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity89.2 dB +6.2

Tang BandW4-2414

£68.21 · 82% less

Fs65 Hz +35%

Qts0.40 +5%

Vas3.9 L −16%

BL5.5 T·m −7%

Xmax2.5 mm −17%

Sensitivity85.6 dB +2.6

Tang BandW4-1337SDF

£72.57 · 81% less

Fs70 Hz +46%

Qts0.34 −11%

Vas5.6 L +22%

BL5.3 T·m −10%

Xmax2.5 mm −17%

Sensitivity88.9 dB +5.9

WavecorWF118WA01

£77.95 · 80% less

Fs64 Hz +33%

Qts0.36 −5%

Vas4.3 L −7%

BL4.6 T·m −22%

Xmax3 mm –

Sensitivity86.8 dB +3.8

WavecorWF120BD11

£88.41 · 77% less

Fs58 Hz +21%

Qts0.39 –

Vas3.8 L −17%

BL4.2 T·m −29%

Xmax3 mm –

Sensitivity84.7 dB +1.7

SEASH1152-08 CA12RCY

£93.87 · 76% less

Fs57 Hz +19%

Qts0.31 −18%

Vas5 L +9%

BL6.3 T·m +8%

Xmax3 mm –

Sensitivity86.1 dB +3.1

Tang BandW5-2143

£115.26 · 70% less

Fs55 Hz +15%

Qts0.38 –

Vas19 L +313%

BL5.4 T·m −8%

Xmax2.5 mm −17%

Sensitivity90.7 dB +7.7

WavecorWF120BD14

£135.75 · 65% less

Fs58 Hz +20%

Qts0.46 +21%

Vas3.9 L −15%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity83.8 dB +0.8

SEASE0044-08S W12CY003

£204.86 · 47% less

Fs60 Hz +25%

Qts0.36 −5%

Vas4 L −13%

BL5.5 T·m −7%

Xmax3 mm –

Sensitivity85 dB +2

PurifiPTT4.0M08-NAC-03

£256.08 · 33% less

Fs50 Hz +4%

Qts0.32 −16%

Vas4.9 L +7%

BL7 T·m +19%

Xmax2.9 mm −3%

Sensitivity84.6 dB +1.6

SEASE0043-06S M15CH002

£281.70 · 27% less

Fs67 Hz +40%

Qts0.40 +5%

Vas6 L +30%

BL5.3 T·m −10%

Xmax3 mm –

Sensitivity87.4 dB +4.4

SEASE0021-08S W12CY001

£341.46 · 11% less

Fs45 Hz −6%

Qts0.36 −5%

Vas6 L +30%

BL5.4 T·m −8%

Xmax3 mm –

Sensitivity83.2 dB –

Tang BandW4-1320SJF

No current price

Fs75 Hz +56%

Qts0.38 –

Vas5.2 L +14%

BL5.1 T·m −13%

Xmax3 mm –

Sensitivity88.9 dB +5.9

Tang BandW4-1337SD

No current price

Fs70 Hz +46%

Qts0.37 –

Vas4.9 L +6%

BL5.4 T·m −9%

Xmax3 mm –

Sensitivity87.3 dB +4.3

Tang BandW4-1320SI

No current price

Fs75 Hz +56%

Qts0.38 –

Vas5.2 L +14%

BL5.1 T·m −13%

Xmax3 mm –

Sensitivity88.7 dB +5.7

WavecorWF120BD12

No current price

Fs57 Hz +18%

Qts0.38 –

Vas3.9 L −15%

BL4.2 T·m −29%

Xmax3 mm –

Sensitivity84.5 dB +1.5

Tang BandW4-992SD

No current price

Fs55 Hz +15%

Qts0.35 −8%

Vas5.7 L +24%

BL6.4 T·m +9%

Xmax3.5 mm +17%

Sensitivity85.8 dB +2.8

CIARECW131

No current price

Fs65 Hz +35%

Qts0.39 –

Vas5.3 L +15%

BL5.7 T·m −4%

Xmax4 mm +33%

Sensitivity87.1 dB +4.1

Tang BandW5-704D

No current price

Fs55 Hz +15%

Qts0.38 –

Vas11.6 L +152%

BL6.2 T·m +5%

Xmax3.3 mm +10%

Sensitivity88.2 dB +5.2

Tang BandW4-657D

No current price

Fs70 Hz +46%

Qts0.32 −16%

Vas5.6 L +22%

BL5.6 T·m −5%

Xmax3.3 mm +10%

Sensitivity89.4 dB +6.4

PurifiPTT4.0M04-NAC-03

No current price

Fs48 Hz –

Qts0.28 −26%

Vas5 L +9%

BL5.9 T·m –

Xmax2.9 mm −3%

Sensitivity84.7 dB +1.7

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

UK shops, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
SoundImports Checked 2 Oct 2026 · 8 Ω · Source: inc VAT	£384.15, the lowest price		2 in stock	Visit shop at SoundImports

Best price over time

Tracked since 1 Apr