REDCATT5FHW
£15.87 · 95% less, betterFs50 Hz +11%, worse
Qts0.35 –
Vas6.5 L +9%
BL6.5 T·m +21%, better
Xmax3.2 mm +7%
Sensitivity85.4 dB +2.2, better
4.5-inch LF driver · Excel series · 26 mm voice coil · 70 W
SEAS E0021-08S W12CY001 8Ω
8 Ω · 60–3500 Hz
£335.05
SteadySoundImports · 15 in stock · Ships from Netherlands · All 1 offer
- Fs
- 45Hz
- Xmax
- 3mm
- SPL
- 83dB
- Pe
- 70W
- BL
- 5.4T·m
- Vd
- 15cm³
- Qts
- 0.36
- Vas
- 6L
Published graphs
SEAS E0021-08S W12CY001 is a 4.5-inch 8 ohm LF driver rated at 70 W RMS. The validated T/S data includes Fs 45 Hz, Qts 0.36, Vas 6 L, Xmax 3 mm, sensitivity 83.2 dB, plus 15 cm³ Vd and 107 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 £335.05.
The published T/S values agree with each other
Thiele/Small
- Fs
- 45Hz
- Qts
- 0.36
- Qes
- 0.42
- Qms
- 2.5
- Vas
- 6L
- Re
- 5.6Ω
- Le
- 0.43mH
Motor and cone
- BL
- 5.4T·m
- Sd
- 50cm²
- Mms
- 8g
- Xmax
- 3mm
- Vd †
- 15cm³
- Voice coil
- 26mm
- Flux density
- 1.10T
Power and response
- Sensitivity †
- 83.2dB
- Manufacturer sensitivity
- 84dB
- Power
- 70W
- Impedance
- 8Ω
- Range
- 60–3500Hz
- EBP †
- 107 · Leans vented
Size and mounting
- Weight
- 1.2kg
Other published values
- Cms
- 1.70mm/N
- Rms
- 0.87kg/s
- Xmech
- 4.5
- Power Peak
- 200
† Calculated by bits from the published values
What this validation status means
Everything else SEAS lists
LF · Primary · 4.5″
- BL
- 5.4T·m
- Fs
- 45Hz
- Le
- 0.43mH
- Re
- 5.6Ω
- Sd
- 50cm²
- Cms
- 1.70mm/N
- Mms
- 8g
- Qes
- 0.42
- Qms
- 2.5
- Qts
- 0.36
- Rms
- 0.87kg/s
- SPL
- 83.2dB
- Vas
- 6L
- Xmax
- 3mm
- Xmech
- 4.5
- Power
- 70W
- Impedance
- 8Ω
- Power Peak
- 200
- Flux density
- 1.10T
- Sensitivity
- 84dB
- Low limit
- 60Hz
- Calculated sensitivity †
- 83.2dB
- High limit
- 3500Hz
- Manufacturer sensitivity
- 84dB
- Voice coil
- 26mm
- Weight
- 1.2kg
02
Compare
Same-size drivers, compared with the E0021-08S W12CY001. Clear differences are green when better and red when worse.
This driverE0021-08S W12CY001
Best price
£335.05
Fs
45 Hz
Qts
0.36
Vas
6 L
BL
5.4 T·m
Xmax
3 mm
Sensitivity
83.2 dB
Power
70 W
MonacorSP-100/8
£31.16 · 91% less, betterFs61 Hz +36%, worse
Qts0.37 –
Vas4.7 L −22%, better
BL5.5 T·m –
Xmax2.5 mm −17%, worse
Sensitivity85.9 dB +2.7, better
Dayton AudioRS125-8
£37.37 · 89% less, betterFs59 Hz +32%, worse
Qts0.34 −6%
Vas4.8 L −21%, better
BL5.7 T·m +5%
Xmax4 mm +33%, better
Sensitivity85.8 dB +2.6, better
SB AcousticsSB12NRX25-8
£51.90 · 85% less, betterFs57 Hz +27%, worse
Qts0.37 –
Vas5.3 L −12%, better
BL5.4 T·m –
Xmax5 mm +67%, better
Sensitivity85.8 dB +2.6, better
WavecorWF118WA02
£52.33 · 84% less, betterFs65 Hz +44%, worse
Qts0.44 +22%, worse
Vas4.3 L −28%, better
BL5.8 T·m +7%
Xmax3 mm –
Sensitivity86.1 dB +2.9, better
Scanspeak12W/8524G00
£54.45 · 84% less, betterFs52 Hz +16%, worse
Qts0.32 −11%, better
Vas8.2 L +37%, worse
BL5.4 T·m –
Xmax3 mm –
Sensitivity87.2 dB +4, better
Tang BandW4-1320SIF
£57.80 · 83% less, betterFs75 Hz +67%, worse
Qts0.36 –
Vas5.2 L −13%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity89.2 dB +6, better
Tang BandW4-2142
£57.80 · 83% less, betterFs60 Hz +33%, worse
Qts0.33 −8%
Vas6.4 L +7%
BL5.4 T·m –
Xmax2.4 mm −20%, worse
Sensitivity87.5 dB +4.3, better
SB AcousticsSB12CACS25-8
£58.31 · 83% less, betterFs51 Hz +13%, worse
Qts0.37 –
Vas6.5 L +8%
BL5.2 T·m −4%
Xmax5 mm +67%, better
Sensitivity85.4 dB +2.2, better
Sica5 NR 1.5 PL
£63.84 · 81% less, betterFs61 Hz +36%, worse
Qts0.35 –
Vas7.4 L +23%, worse
BL6.7 T·m +23%, better
Xmax3.5 mm +17%, better
Sensitivity88.4 dB +5.2, better
Tang BandW4-1337SDF
£71.21 · 79% less, betterFs70 Hz +56%, worse
Qts0.34 −6%
Vas5.6 L −6%
BL5.3 T·m –
Xmax2.5 mm −17%, worse
Sensitivity88.9 dB +5.7, better
WavecorWF118WA01
£76.48 · 77% less, betterFs64 Hz +42%, worse
Qts0.36 –
Vas4.3 L −28%, better
BL4.6 T·m −15%, worse
Xmax3 mm –
Sensitivity86.8 dB +3.6, better
SEASH1152-08 CA12RCY
£79.50 · 76% less, betterFs57 Hz +27%, worse
Qts0.31 −14%, better
Vas5 L −17%, better
BL6.3 T·m +18%, better
Xmax3 mm –
Sensitivity86.1 dB +2.9, better
WavecorWF120BD11
£87.47 · 74% less, betterFs58 Hz +29%, worse
Qts0.39 +8%
Vas3.8 L −37%, better
BL4.2 T·m −22%, worse
Xmax3 mm –
Sensitivity84.7 dB +1.5
Tang BandW5-2143
£113.09 · 66% less, betterFs55 Hz +22%, worse
Qts0.38 +6%
Vas19 L +217%, worse
BL5.4 T·m –
Xmax2.5 mm −17%, worse
Sensitivity90.7 dB +7.5, better
£201.01 · 40% less, better
Fs60 Hz +33%, worse
Qts0.36 –
Vas4 L −33%, better
BL5.5 T·m –
Xmax3 mm –
Sensitivity85 dB +1.8
Scanspeak12M/4631G00
£242.90 · 28% less, betterFs75 Hz +67%, worse
Qts0.33 −8%
Vas2.3 L −62%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity86.5 dB +3.3, better
£276.41 · 18% less, better
Fs67 Hz +49%, worse
Qts0.40 +11%, worse
Vas6 L –
BL5.3 T·m –
Xmax3 mm –
Sensitivity87.4 dB +4.2, better
£376.94 · 13% more, worse
Fs48 Hz +7%
Qts0.38 +6%
Vas4.6 L −23%, better
BL5.9 T·m +9%
Xmax3 mm –
Sensitivity83 dB –
Tang BandW4-1320SJF
No current priceFs75 Hz +67%, worse
Qts0.38 +6%
Vas5.2 L −13%, better
BL5.1 T·m −5%
Xmax3 mm –
Sensitivity88.9 dB +5.7, better
Tang BandW4-1337SD
No current priceFs70 Hz +56%, worse
Qts0.37 –
Vas4.9 L −19%, better
BL5.4 T·m –
Xmax3 mm –
Sensitivity87.3 dB +4.1, better
Tang BandW4-1320SI
No current priceFs75 Hz +67%, worse
Qts0.38 +6%
Vas5.2 L −13%, better
BL5.1 T·m −5%
Xmax3 mm –
Sensitivity88.7 dB +5.5, better
Tang BandW4-1320SJ
No current priceFs75 Hz +67%, worse
Qts0.35 –
Vas6.4 L +7%
BL4.7 T·m −13%, worse
Xmax3 mm –
Sensitivity89.4 dB +6.2, better
SB AcousticsSB15BAC30-8-COAX
No current priceFs43 Hz −4%
Qts0.36 –
Vas17.5 L +192%, worse
BL5.3 T·m –
Xmax3 mm –
Sensitivity87.6 dB +4.4, better
Tang BandW4-992SD
No current priceFs55 Hz +22%, worse
Qts0.35 –
Vas5.7 L −5%
BL6.4 T·m +19%, better
Xmax3.5 mm +17%, better
Sensitivity85.8 dB +2.6, better
Tang BandW4-657D
No current priceFs70 Hz +56%, worse
Qts0.32 −11%, better
Vas5.6 L −6%
BL5.6 T·m +4%
Xmax3.3 mm +10%
Sensitivity89.4 dB +6.2, better
Tang BandW4-1798S
No current priceFs60 Hz +33%, worse
Qts0.30 −17%, better
Vas7.4 L +24%, worse
BL5.8 T·m +6%
Xmax3 mm –
Sensitivity88.4 dB +5.2, better
WavecorWF120BD12
No current priceFs57 Hz +26%, worse
Qts0.38 +6%
Vas3.9 L −35%, better
BL4.2 T·m −22%, worse
Xmax3 mm –
Sensitivity84.5 dB +1.3
Tang BandW4-1749S
No current priceFs60 Hz +33%, worse
Qts0.34 −6%
Vas6.3 L +6%
BL5.8 T·m +7%
Xmax0.9 mm −70%, worse
Sensitivity87.5 dB +4.3, better
CIARECW131
No current priceFs65 Hz +44%, worse
Qts0.39 +8%
Vas5.3 L −12%, better
BL5.7 T·m +5%
Xmax4 mm +33%, better
Sensitivity87.1 dB +3.9, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
SoundImports Import VAT and duty may apply | £335.05, the lowest price | 15 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr