REDCATT5FHW
£15.86 · 71% less, betterFs50 Hz −4%
Qts0.35 +9%
Vas6.5 L −20%, better
BL6.5 T·m +21%, better
Xmax3.2 mm +7%
Sensitivity85.4 dB −1.8
5-inch LF driver · Discovery series · 25 mm voice coil · 40 W
Scanspeak 12W/8524G00 8Ω
8 Ω
- Fs
- 52Hz
- Xmax
- 3mm
- SPL
- 87dB
- Pe
- 40W
- BL
- 5.4T·m
- Vd
- 18cm³
- Qts
- 0.32
- Vas
- 8L
Scanspeak 12W/8524G00 is a 5-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 52 Hz, Qts 0.32, Vas 8.2 L, Xmax 3 mm, sensitivity 87.2 dB, plus 18 cm³ Vd and 149 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 £54.43.
The published T/S values agree with each other
Thiele/Small
- Fs
- 52Hz
- Qts
- 0.32
- Qes
- 0.35
- Qms
- 3.4
- Vas
- 8.2L
- Re
- 5.7Ω
- Le
- 0.60mH
Motor and cone
- BL
- 5.4T·m
- Sd
- 59cm²
- Mms
- 6g
- Xmax
- 3mm
- Vd †
- 18cm³
- Voice coil
- 25mm
Power and response
- Sensitivity †
- 87.2dB
- Manufacturer sensitivity
- 86dB
- Power
- 40W
- Impedance
- 8Ω
- Min. impedance
- 6.6Ω
- EBP †
- 149 · Leans vented
Size and mounting
- Diameter
- 120mm
Other published values
- Cms
- 1.67mm/N
- Rms
- 0.54kg/s
- Xmech
- 9
- Power Peak
- 70
Sensitivity shows 87.2 dB, calculated from the T/S values. Scanspeak publishes 86.0 dB, 1.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Scanspeak lists
LF · Primary · 5″
- BL
- 5.4T·m
- Fs
- 52Hz
- Le
- 0.60mH
- Re
- 5.7Ω
- Sd
- 59cm²
- Cms
- 1.67mm/N
- Mms
- 6g
- Qes
- 0.35
- Qms
- 3.4
- Qts
- 0.32
- Rms
- 0.54kg/s
- SPL
- 87.2dB
- Vas
- 8.2L
- Xmax
- 3mm
- Xmech
- 9
- Power
- 40W
- Impedance
- 8Ω
- Power Peak
- 70
- Sensitivity
- 86dB
- Calculated sensitivity †
- 87.2dB
- Manufacturer sensitivity
- 86dB
- Min. impedance
- 6.6Ω
- Voice coil
- 25mm
- Diameter
- 120mm
02
Compare
Same-size drivers, compared with the 12W/8524G00. Clear differences are green when better and red when worse.
This driver12W/8524G00
Best price
£54.43
Fs
52 Hz
Qts
0.32
Vas
8.2 L
BL
5.4 T·m
Xmax
3 mm
Sensitivity
87.2 dB
Power
40 W
HiViF5
£23.17 · 57% less, betterFs52 Hz –
Qts0.33 +3%
Vas7.3 L −11%, better
BL8.3 T·m +54%, better
Xmax2.7 mm −10%
Sensitivity86.6 dB −0.6
Scanspeak12W/4524G00
£55.26 · 2% moreFs50 Hz −4%
Qts0.27 −16%, better
Vas8.2 L –
BL4.4 T·m −19%, worse
Xmax3 mm –
Sensitivity87.4 dB –
Tang BandW4-2142
£57.77 · 6% more, worseFs60 Hz +15%, worse
Qts0.33 +3%
Vas6.4 L −22%, better
BL5.4 T·m –
Xmax2.4 mm −20%, worse
Sensitivity87.5 dB –
Tang BandW4-1320SIF
£57.77 · 6% more, worseFs75 Hz +44%, worse
Qts0.36 +12%, worse
Vas5.2 L −36%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity89.2 dB +2, better
Tang BandW4-1337SDF
£71.17 · 31% more, worseFs70 Hz +35%, worse
Qts0.34 +6%
Vas5.6 L −32%, better
BL5.3 T·m –
Xmax2.5 mm −17%, worse
Sensitivity88.9 dB +1.7
WavecorWF118WA01
£76.45 · 40% more, worseFs64 Hz +23%, worse
Qts0.36 +12%, worse
Vas4.3 L −48%, better
BL4.6 T·m −15%, worse
Xmax3 mm –
Sensitivity86.8 dB –
SEASH1152-08 CA12RCY
£79.46 · 46% more, worseFs57 Hz +10%
Qts0.31 −3%
Vas5 L −39%, better
BL6.3 T·m +18%, better
Xmax3 mm –
Sensitivity86.1 dB −1.1
ETON5-512/C8/25 RP
£83.69 · 54% more, worseFs59 Hz +13%, worse
Qts0.34 +6%
Vas10 L +22%, worse
BL5.9 T·m +9%
Xmax2.5 mm −17%, worse
Sensitivity89.7 dB +2.5, better
WavecorWF152BD13
£98.00 · 80% more, worseFs50 Hz −4%
Qts0.33 +3%
Vas9.2 L +12%, worse
BL6.3 T·m +18%, better
Xmax4.5 mm +50%, better
Sensitivity87.3 dB –
WavecorWF152BD09
£109.96 · 102% more, worseFs52 Hz –
Qts0.34 +6%
Vas8.6 L +5%
BL5.8 T·m +7%
Xmax4.5 mm +50%, better
Sensitivity87.4 dB –
SB AcousticsMR13PNW-8
£115.00 · 111% more, worseFs47 Hz −10%
Qts0.30 −6%
Vas12.9 L +57%, worse
BL6.2 T·m +15%, better
Xmax3 mm –
Sensitivity88.2 dB +1
SB AcousticsMR13P-8
£135.77 · 149% more, worseFs45 Hz −13%, better
Qts0.31 −3%
Vas12.5 L +52%, worse
BL6.1 T·m +13%, better
Xmax3 mm –
Sensitivity87.4 dB –
WavecorWF152BD03
£142.76 · 162% more, worseFs56 Hz +7%
Qts0.35 +9%
Vas9.2 L +12%, worse
BL5.8 T·m +7%
Xmax4.5 mm +50%, better
Sensitivity88.4 dB +1.2
SB AcousticsMR16PNW-8
£159.05 · 192% more, worseFs31 Hz −40%, better
Qts0.32 –
Vas44.8 L +446%, worse
BL6.5 T·m +20%, better
Xmax3.1 mm +3%
Sensitivity88 dB +0.8
Tang BandW4-2315
£175.00 · 222% more, worseFs65 Hz +25%, worse
Qts0.29 −9%
Vas5.0 L −40%, better
BL6.2 T·m +15%, better
Xmax2.8 mm −7%
Sensitivity88.5 dB +1.3
Scanspeak12M/4631G00
£242.78 · 346% more, worseFs75 Hz +44%, worse
Qts0.33 +3%
Vas2.3 L −72%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity86.5 dB −0.7
PurifiPTT4.0M08-NAC-03
£251.15 · 361% more, worseFs50 Hz −4%
Qts0.32 –
Vas4.9 L −40%, better
BL7 T·m +30%, better
Xmax2.9 mm −3%
Sensitivity84.6 dB −2.6, worse
Scanspeak12MU/8731T00
£263.71 · 385% more, worseFs66 Hz +27%, worse
Qts0.29 −9%
Vas5.8 L −29%, better
BL6.1 T·m +13%, better
Xmax3.4 mm +13%, better
Sensitivity89.3 dB +2.1, better
£334.88 · 515% more, worse
Fs45 Hz −13%, better
Qts0.36 +12%, worse
Vas6 L −27%, better
BL5.4 T·m –
Xmax3 mm –
Sensitivity83.2 dB −4, worse
Tang BandW4-1798S
No current priceFs60 Hz +15%, worse
Qts0.30 −6%
Vas7.4 L −10%
BL5.8 T·m +6%
Xmax3 mm –
Sensitivity88.4 dB +1.2
Tang BandW4-657D
No current priceFs70 Hz +35%, worse
Qts0.32 –
Vas5.6 L −32%, better
BL5.6 T·m +4%
Xmax3.3 mm +10%
Sensitivity89.4 dB +2.2, better
SB AcousticsSB17BAC35-8-COAX
No current priceFs35 Hz −32%, better
Qts0.33 +3%
Vas33.1 L +304%, worse
BL5.7 T·m +6%
Xmax3.1 mm +3%
Sensitivity88.1 dB +0.9
WavecorWF152BD10
No current priceFs49 Hz −6%
Qts0.32 –
Vas9.6 L +17%, worse
BL5.8 T·m +7%
Xmax4.5 mm +50%, better
Sensitivity87.4 dB –
HiViS5N
No current priceFs49 Hz −6%
Qts0.34 +6%
Vas8.9 L +9%
BL7.7 T·m +43%, better
Xmax2.7 mm −10%
Sensitivity86.8 dB –
PurifiPTT4.0M08-NFC-01
No current priceFs48 Hz −8%
Qts0.31 −3%
Vas5.3 L −35%, better
BL7 T·m +30%, better
Xmax2.9 mm −3%
Sensitivity84.5 dB −2.7, worse
SB AcousticsSB15BAC30-8-COAX
No current priceFs43 Hz −17%, better
Qts0.36 +12%, worse
Vas17.5 L +113%, worse
BL5.3 T·m –
Xmax3 mm –
Sensitivity87.6 dB –
Sica6 N 2 PL
No current priceFs68 Hz +31%, worse
Qts0.33 +3%
Vas8.7 L +6%
BL9.5 T·m +76%, better
Xmax3.5 mm +17%, better
Sensitivity90.8 dB +3.6, better
PurifiPTT4.0M04-NAC-03
No current priceFs48 Hz −8%
Qts0.28 −12%, better
Vas5 L −39%, better
BL5.9 T·m +9%
Xmax2.9 mm −3%
Sensitivity84.7 dB −2.5, worse
WavecorWF152BD05
No current priceFs50 Hz −4%
Qts0.33 +3%
Vas9.2 L +12%, worse
BL6.3 T·m +18%, better
Xmax4.5 mm +50%, better
Sensitivity87.3 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports5.0 out of 51 rating · Checked 26 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 |
|---|---|---|---|---|
Hifi Collective | £54.93, the lowest price | 4 in stock | Visit shop at Hifi Collective | |
Falcon Acoustics | £61.74 | 12% above the lowest price | In stock | Visit shop at Falcon Acoustics |
Willys-Hifi | £63.72 | 16% above the lowest price | Stock not listed | Visit shop at Willys-Hifi |
SoundImports Import VAT and duty may apply | £58.57 | 6.6% above the lowest price | Back order | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£65.95 → £63.72Down 3.4% from £65.95
- 28 SepWillys-Hifi£64.95 → £65.95Up 1.5% from £64.95
- 23 SepWillys-Hifi£65.95 → £64.95Down 1.5% from £65.95