REDCATT5FHW
£15.86 · 80% less, betterFs50 Hz −12%, better
Qts0.35 +13%, worse
Vas6.5 L +31%, worse
BL6.5 T·m +3%
Xmax3.2 mm +7%
Sensitivity85.4 dB −0.7
4.5-inch LF driver · Prestige series · 26 mm voice coil · 60 W
SEAS H1152-08 CA12RCY 8Ω
8 Ω · 45–5000 Hz
- Fs
- 57Hz
- Xmax
- 3mm
- SPL
- 86dB
- Pe
- 60W
- BL
- 6.3T·m
- Vd
- 17cm³
- Qts
- 0.31
- Vas
- 5L
Published graphs
SEAS H1152-08 CA12RCY is a 4.5-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 57 Hz, Qts 0.31, Vas 5 L, Xmax 3 mm, sensitivity 86.1 dB, plus 17 cm³ Vd and 158 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 £79.46.
The published T/S values agree with each other
Thiele/Small
- Fs
- 57Hz
- Qts
- 0.31
- Qes
- 0.36
- Qms
- 2.2
- Vas
- 5L
- Re
- 6.4Ω
- Le
- 1.05mH
Motor and cone
- BL
- 6.3T·m
- Sd
- 55cm²
- Mms
- 6g
- Xmax
- 3mm
- Vd †
- 17cm³
- Voice coil
- 26mm
- Flux density
- 1.15T
Power and response
- Sensitivity †
- 86.1dB
- Manufacturer sensitivity
- 86dB
- Power
- 60W
- Impedance
- 8Ω
- Range
- 45–5000Hz
- EBP †
- 158 · Leans vented
Size and mounting
- Weight
- 1.2kg
Other published values
- Cms
- 1.30mm/N
- Rms
- 1.04kg/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
- 6.3T·m
- Fs
- 57Hz
- Le
- 1.05mH
- Re
- 6.4Ω
- Sd
- 55cm²
- Cms
- 1.30mm/N
- Mms
- 6g
- Qes
- 0.36
- Qms
- 2.2
- Qts
- 0.31
- Rms
- 1.04kg/s
- SPL
- 86.1dB
- Vas
- 5L
- Xmax
- 3mm
- Xmech
- 4.5
- Power
- 60W
- Impedance
- 8Ω
- Power Peak
- 200
- Flux density
- 1.15T
- Sensitivity
- 86dB
- Low limit
- 45Hz
- Calculated sensitivity †
- 86.1dB
- High limit
- 5000Hz
- Manufacturer sensitivity
- 86dB
- Voice coil
- 26mm
- Weight
- 1.2kg
02
Compare
Same-size drivers, compared with the H1152-08 CA12RCY. Clear differences are green when better and red when worse.
This driverH1152-08 CA12RCY
Best price
£79.46
Fs
57 Hz
Qts
0.31
Vas
5 L
BL
6.3 T·m
Xmax
3 mm
Sensitivity
86.1 dB
Power
60 W
CIAREHW100
£27.63 · 65% less, betterFs70 Hz +23%, worse
Qts0.31 –
Vas4.3 L −14%, better
BL5.6 T·m −12%, worse
Xmax4.3 mm +43%, better
Sensitivity88 dB +1.9
Sica5 F 1.5 CP
£38.51 · 52% less, betterFs61 Hz +7%
Qts0.30 −3%
Vas6.8 L +36%, worse
BL7.6 T·m +19%, better
Xmax3.5 mm +17%, better
Sensitivity88.7 dB +2.6, better
Dayton AudioCF120-4
£52.29 · 34% less, betterFs53 Hz −7%
Qts0.28 −10%
Vas4.9 L –
BL4.9 T·m −22%, worse
Xmax3.5 mm +17%, better
Sensitivity85.6 dB −0.5
Scanspeak12W/8524G00
£54.43 · 32% less, betterFs52 Hz −9%
Qts0.32 +3%
Vas8.2 L +64%, worse
BL5.4 T·m −15%, worse
Xmax3 mm –
Sensitivity87.2 dB +1.1
Tang BandW4-1320SIF
£57.77 · 27% less, betterFs75 Hz +32%, worse
Qts0.36 +16%, worse
Vas5.2 L +5%
BL5.3 T·m −16%, worse
Xmax3 mm –
Sensitivity89.2 dB +3.1, better
Tang BandW4-2142
£57.77 · 27% less, betterFs60 Hz +5%
Qts0.33 +6%
Vas6.4 L +28%, worse
BL5.4 T·m −15%, worse
Xmax2.4 mm −20%, worse
Sensitivity87.5 dB +1.4
Tang BandW4-1337SDF
£71.17 · 10% less, betterFs70 Hz +23%, worse
Qts0.34 +10%
Vas5.6 L +12%, worse
BL5.3 T·m −16%, worse
Xmax2.5 mm −17%, worse
Sensitivity88.9 dB +2.8, better
WavecorWF118WA01
£76.45 · 4% lessFs64 Hz +12%, worse
Qts0.36 +16%, worse
Vas4.3 L −14%, better
BL4.6 T·m −28%, worse
Xmax3 mm –
Sensitivity86.8 dB +0.7
SB AcousticsMR13PNW-8
£115.00 · 45% more, worseFs47 Hz −18%, better
Qts0.30 −3%
Vas12.9 L +158%, worse
BL6.2 T·m –
Xmax3 mm –
Sensitivity88.2 dB +2.1, better
SB AcousticsMR13P-8
£135.77 · 71% more, worseFs45 Hz −21%, better
Qts0.31 –
Vas12.5 L +150%, worse
BL6.1 T·m −4%
Xmax3 mm –
Sensitivity87.4 dB +1.3
Tang BandW4-2315
£175.00 · 120% more, worseFs65 Hz +14%, worse
Qts0.29 −6%
Vas5.0 L –
BL6.2 T·m –
Xmax2.8 mm −7%
Sensitivity88.5 dB +2.4, better
£200.91 · 153% more, worse
Fs60 Hz +5%
Qts0.36 +16%, worse
Vas4 L −20%, better
BL5.5 T·m −13%, worse
Xmax3 mm –
Sensitivity85 dB −1.1
Scanspeak12M/4631G00
£242.78 · 206% more, worseFs75 Hz +32%, worse
Qts0.33 +6%
Vas2.3 L −54%, better
BL5.3 T·m −17%, worse
Xmax3 mm –
Sensitivity86.5 dB –
PurifiPTT4.0M08-NAC-03
£251.15 · 216% more, worseFs50 Hz −12%, better
Qts0.32 +3%
Vas4.9 L –
BL7 T·m +10%, better
Xmax2.9 mm −3%
Sensitivity84.6 dB −1.5
PurifiPTT4.0X04-NFC-01
£251.15 · 216% more, worseFs38 Hz −33%, better
Qts0.30 −3%
Vas6.4 L +28%, worse
BL6 T·m −6%
Xmax8.8 mm +193%, better
Sensitivity82.4 dB −3.7, worse
Scanspeak12MU/8731T00
£263.71 · 232% more, worseFs66 Hz +16%, worse
Qts0.29 −6%
Vas5.8 L +16%, worse
BL6.1 T·m −4%
Xmax3.4 mm +13%, better
Sensitivity89.3 dB +3.2, better
£334.88 · 321% more, worse
Fs45 Hz −21%, better
Qts0.36 +16%, worse
Vas6 L +20%, worse
BL5.4 T·m −15%, worse
Xmax3 mm –
Sensitivity83.2 dB −2.9, worse
£376.75 · 374% more, worse
Fs48 Hz −16%, better
Qts0.38 +23%, worse
Vas4.6 L −8%
BL5.9 T·m −7%
Xmax3 mm –
Sensitivity83 dB −3.1, worse
PurifiPTT4.0M08-NFC-01
No current priceFs48 Hz −16%, better
Qts0.31 –
Vas5.3 L +6%
BL7 T·m +10%, better
Xmax2.9 mm −3%
Sensitivity84.5 dB −1.6
Tang BandW4-657D
No current priceFs70 Hz +23%, worse
Qts0.32 +3%
Vas5.6 L +12%, worse
BL5.6 T·m −12%, worse
Xmax3.3 mm +10%
Sensitivity89.4 dB +3.3, better
PurifiPTT4.0M04-NAC-03
No current priceFs48 Hz −16%, better
Qts0.28 −10%
Vas5 L –
BL5.9 T·m −7%
Xmax2.9 mm −3%
Sensitivity84.7 dB −1.4
Tang BandW4-1798S
No current priceFs60 Hz +5%
Qts0.30 −3%
Vas7.4 L +48%, worse
BL5.8 T·m −9%
Xmax3 mm –
Sensitivity88.4 dB +2.3, better
PurifiPTT4.0X04-NAC-03
No current priceFs40 Hz −30%, better
Qts0.31 –
Vas5.5 L +10%, worse
BL6.1 T·m −4%
Xmax8.8 mm +193%, better
Sensitivity82.2 dB −3.9, worse
Tang BandW4-992SD
No current priceFs55 Hz −4%
Qts0.35 +13%, worse
Vas5.7 L +14%, worse
BL6.4 T·m –
Xmax3.5 mm +17%, better
Sensitivity85.8 dB –
CIAREHWL100
No current priceFs70 Hz +23%, worse
Qts0.31 –
Vas4.3 L −14%, better
BL5.6 T·m −12%, worse
Xmax4.3 mm +43%, better
Sensitivity88 dB +1.9
PurifiPTT4.0M04-NFC-01
No current priceFs46 Hz −19%, better
Qts0.25 −19%, better
Vas5.4 L +8%
BL6 T·m −6%
Xmax2.9 mm −3%
Sensitivity84.9 dB −1.2
Sica5.5 C 1.5 CP
No current priceFs62 Hz +9%
Qts0.31 –
Vas5.4 L +8%
BL7.9 T·m +24%, better
Xmax4 mm +33%, better
Sensitivity87.8 dB +1.7
Tang BandW4-937SF
No current priceFs65 Hz +14%, worse
Qts0.26 −16%, better
Vas4.9 L –
BL6.7 T·m +5%
Xmax4.5 mm +50%, better
Sensitivity88.1 dB +2, better
Tang BandW4-1320SJF
No current priceFs75 Hz +32%, worse
Qts0.38 +23%, worse
Vas5.2 L +5%
BL5.1 T·m −19%, worse
Xmax3 mm –
Sensitivity88.9 dB +2.8, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports4.7 out of 53 ratings · Checked 25 Oct 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Lautsprechershop Import VAT and duty may apply | £79.46, the lowest price | Stock not listed | Visit shop at Lautsprechershop | |
RumoH Import VAT and duty may apply | £81.49 | 2.6% above the lowest price | Stock not listed | Visit shop at RumoH |
SoundImports Import VAT and duty may apply | £92.06 | 16% above the lowest price | 9 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 20 AprSoundImports£87.88 → £92.06Up 4.8% from £87.88