SB AcousticsSB20PFCR30-4
£31.27 · 84% less, betterFs34 Hz +13%, worse
Qts0.33 −6%
Vas66.2 L −51%, better
BL6.6 T·m +3%
Xmax5.8 mm +92%, better
Sensitivity90.5 dB −1.3
8-inch LF driver · Prestige series · 26 mm voice coil · 40 W
SEAS H1597-08 FA22RCZ 8Ω
8 Ω · 30–20000 Hz
£197.94
Falcon Acoustics · In stock · All 4 offers
- Fs
- 30Hz
- Xmax
- 3mm
- SPL
- 92dB
- Pe
- 40W
- BL
- 6.4T·m
- Vd
- 67cm³
- Qts
- 0.35
- Vas
- 134L
Published graphs
SEAS H1597-08 FA22RCZ is an 8-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 30 Hz, Qts 0.35, Vas 134 L, Xmax 3 mm, sensitivity 91.8 dB, plus 67 cm³ Vd and 79 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 £197.94.
The published T/S values agree with each other
Thiele/Small
- Fs
- 30Hz
- Qts
- 0.35
- Qes
- 0.38
- Qms
- 4.4
- Vas
- 134L
- Re
- 5.7Ω
- Le
- 0.09mH
Motor and cone
- BL
- 6.4T·m
- Sd
- 222cm²
- Mms
- 13g
- Xmax
- 3mm
- Vd †
- 67cm³
- Voice coil
- 26mm
- Flux density
- 1.10T
Power and response
- Sensitivity †
- 91.8dB
- Manufacturer sensitivity
- 94dB
- Power
- 40W
- Impedance
- 8Ω
- Range
- 30–20000Hz
- EBP †
- 79 · Sealed or vented
Size and mounting
- Weight
- 2.0kg
Other published values
- Cms
- 2.20mm/N
- Rms
- 0.63kg/s
- Xmech
- 7
- Power Peak
- 110
Sensitivity shows 91.8 dB, calculated from the T/S values. SEAS publishes 94.0 dB, 2.2 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else SEAS lists
LF · Primary · 8″
- BL
- 6.4T·m
- Fs
- 30Hz
- Le
- 0.09mH
- Re
- 5.7Ω
- Sd
- 222cm²
- Cms
- 2.20mm/N
- Mms
- 13g
- Qes
- 0.38
- Qms
- 4.4
- Qts
- 0.35
- Rms
- 0.63kg/s
- SPL
- 91.8dB
- Vas
- 134L
- Xmax
- 3mm
- Xmech
- 7
- Power
- 40W
- Impedance
- 8Ω
- Power Peak
- 110
- Flux density
- 1.10T
- Sensitivity
- 94dB
- Low limit
- 30Hz
- Calculated sensitivity †
- 91.8dB
- High limit
- 20000Hz
- Manufacturer sensitivity
- 94dB
- Voice coil
- 26mm
- Weight
- 2.0kg
02
Compare
Same-size drivers, compared with the H1597-08 FA22RCZ. Clear differences are green when better and red when worse.
This driverH1597-08 FA22RCZ
Best price
£197.94
Fs
30 Hz
Qts
0.35
Vas
134 L
BL
6.4 T·m
Xmax
3 mm
Sensitivity
91.8 dB
Power
40 W
SB AcousticsSB20PFC30-4
£35.18 · 82% less, betterFs34 Hz +12%, worse
Qts0.33 −6%
Vas66.2 L −51%, better
BL6.6 T·m +3%
Xmax5.8 mm +92%, better
Sensitivity90.4 dB −1.4
VisatonW 200 S
£50.26 · 75% less, betterFs29 Hz −3%
Qts0.35 –
Vas65 L −51%, better
BL7.7 T·m +20%, better
Xmax3.5 mm +17%, better
Sensitivity88.2 dB −3.6, worse
Scanspeak18W/4424G00
£58.64 · 70% less, betterFs49 Hz +63%, worse
Qts0.38 +9%
Vas24.1 L −82%, better
BL5.2 T·m −19%, worse
Xmax2.8 mm −7%
Sensitivity90.3 dB −1.5
CIARECME200
£67.23 · 66% less, betterFs76 Hz +153%, worse
Qts0.37 +6%
Vas18 L −87%, better
BL7.3 T·m +14%, better
Xmax3.5 mm +17%, better
Sensitivity95.1 dB +3.3, better
Scanspeak18W/4434G00
£72.04 · 64% less, betterFs47 Hz +57%, worse
Qts0.35 –
Vas20.7 L −85%, better
BL6 T·m −6%
Xmax4.3 mm +43%, better
Sensitivity89.7 dB −2.1, worse
SB AcousticsSB23NRXS45-8
£84.41 · 57% less, betterFs27 Hz −10%, better
Qts0.38 +9%
Vas94 L −30%, better
BL7.5 T·m +17%, better
Xmax6.5 mm +117%, better
Sensitivity88.6 dB −3.2, worse
SB AcousticsSB23NACS45-4
£88.61 · 55% less, betterFs23 Hz −23%, better
Qts0.33 −6%
Vas95 L −29%, better
BL6.7 T·m +5%
Xmax6.5 mm +117%, better
Sensitivity87.2 dB −4.6, worse
SB AcousticsSB23NACS45-8
£88.61 · 55% less, betterFs25 Hz −17%, better
Qts0.37 +6%
Vas94 L −30%, better
BL7.9 T·m +23%, better
Xmax6.5 mm +117%, better
Sensitivity87.7 dB −4.1, worse
Scanspeak22W/4534G00
£91.31 · 54% less, betterFs30 Hz –
Qts0.34 –
Vas95 L −29%, better
BL6 T·m −6%
Xmax5.7 mm +90%, better
Sensitivity90.4 dB −1.4
SB AcousticsSB23NBACS45-4
£98.70 · 50% less, betterFs23 Hz −23%, better
Qts0.33 −6%
Vas95 L −29%, better
BL6.7 T·m +5%
Xmax6.5 mm +117%, better
Sensitivity87.2 dB −4.6, worse
SB AcousticsSB23CACS45-4
£111.33 · 44% less, betterFs23 Hz −23%, better
Qts0.33 −6%
Vas95 L −29%, better
BL6.7 T·m +5%
Xmax6.5 mm +117%, better
Sensitivity87.2 dB −4.6, worse
WavecorWF182BD17
£121.86 · 38% less, betterFs33 Hz +10%, worse
Qts0.35 –
Vas24.3 L −82%, better
BL6.5 T·m –
Xmax5.5 mm +83%, better
Sensitivity85.8 dB −6, worse
Scanspeak18W/8531G00
£168.81 · 15% less, betterFs28 Hz −7%
Qts0.36 –
Vas58.2 L −57%, better
BL6.8 T·m +6%
Xmax6.5 mm +117%, better
Sensitivity87.2 dB −4.6, worse
Scanspeak18W/4531G01
£168.82 · 15% less, betterFs34 Hz +13%, worse
Qts0.35 –
Vas45.6 L −66%, better
BL5.7 T·m −11%, worse
Xmax6.5 mm +117%, better
Sensitivity88.8 dB −3, worse
Scanspeak18W/4531G00
£180.07 · 9% less, betterFs33 Hz +10%, worse
Qts0.35 –
Vas41.9 L −69%, better
BL5.7 T·m −11%, worse
Xmax6.5 mm +117%, better
Sensitivity88 dB −3.8, worse
Dayton AudioPS220-8
£200.22 · 1% moreFs46 Hz +55%, worse
Qts0.38 +9%
Vas90.2 L −33%, better
BL6.2 T·m −4%
Xmax4.8 mm +60%, better
Sensitivity95.6 dB +3.8, better
Scanspeak18WU/4747T00
£288.98 · 46% more, worseFs36 Hz +20%, worse
Qts0.35 –
Vas36 L −73%, better
BL5.9 T·m −8%
Xmax9 mm +200%, better
Sensitivity88.4 dB −3.4, worse
SB AcousticsWO24TX-4
£293.12 · 48% more, worseFs26 Hz −12%, better
Qts0.35 –
Vas79 L −41%, better
BL7.9 T·m +23%, better
Xmax8.8 mm +192%, better
Sensitivity87.9 dB −3.9, worse
Tang BandW8-1772
£301.58 · 52% more, worseFs42 Hz +40%, worse
Qts0.27 −23%, better
Vas94.5 L −30%, better
BL7.1 T·m +11%, better
Xmax3 mm –
Sensitivity94.9 dB +3.1, better
Scanspeak18WU/4741T00
£304.20 · 54% more, worseFs34 Hz +13%, worse
Qts0.36 –
Vas38.4 L −71%, better
BL5.9 T·m −8%
Xmax9 mm +200%, better
Sensitivity87.9 dB −3.9, worse
£393.69 · 99% more, worse
Fs25 Hz −17%, better
Qts0.34 –
Vas98 L −27%, better
BL8.1 T·m +27%, better
Xmax5 mm +67%, better
Sensitivity87.8 dB −4, worse
AccutonS220-6-221
£444.84 · 125% more, worseFs22 Hz −26%, better
Qts0.37 +6%
Vas112.9 L −16%, better
BL8.3 T·m +29%, better
Xmax5 mm +67%, better
Sensitivity87 dB −4.8, worse
HiViSS8R
No current priceFs30 Hz –
Qts0.35 –
Vas92.9 L −31%, better
BL6.6 T·m +3%
Xmax6 mm +100%, better
Sensitivity90 dB −1.8
HiViS8
No current priceFs30 Hz –
Qts0.34 –
Vas98.5 L −26%, better
BL6.3 T·m –
Xmax5.8 mm +93%, better
Sensitivity90.1 dB −1.7
HiViSS8
No current priceFs30 Hz –
Qts0.33 −6%
Vas83.3 L −38%, better
BL6.8 T·m +6%
Xmax6 mm +100%, better
Sensitivity89.6 dB −2.2, worse
WavecorWF182BD09
No current priceFs33 Hz +10%, worse
Qts0.35 –
Vas24.3 L −82%, better
BL6.5 T·m –
Xmax5.5 mm +83%, better
Sensitivity85.8 dB −6, worse
Cube AudioF8 MAGUS
No current priceFs40 Hz +33%, worse
Qts0.37 +6%
Vas53 L −60%, better
BL9 T·m +41%, better
Xmax3 mm –
Sensitivity91.7 dB –
SB AcousticsMW19PF-8
No current priceFs30 Hz –
Qts0.34 –
Vas63 L −53%, better
BL7 T·m +9%
Xmax6.5 mm +117%, better
Sensitivity88.7 dB −3.1, worse
JensenBP8150-8
No current priceFs75 Hz +149%, worse
Qts0.33 −6%
Vas13.1 L −90%, better
BL13.3 T·m +108%, better
Xmax3.1 mm +3%
Sensitivity93.8 dB +2, better
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 52 ratings · Checked 23 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 |
|---|---|---|---|---|
Falcon Acoustics | £197.94, the lowest price | In stock | Visit shop at Falcon Acoustics | |
Lautsprechershop Import VAT and duty may apply | £184.30 | Special order | Visit shop at Lautsprechershop | |
RumoH Import VAT and duty may apply | £200.22 | 1.2% above the lowest price | Stock not listed | Visit shop at RumoH |
SoundImports Import VAT and duty may apply | £201.01 | 1.6% above the lowest price | 3 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 21 Oct