SB AcousticsSB16PFCR25-4
£21.76 · 92% less, betterFs35 Hz –
Qts0.34 –
Vas32.7 L −9%
BL5 T·m −15%, worse
Xmax4.5 mm −50%, worse
Sensitivity87.6 dB −0.8
7-inch LF driver · Illuminator series · 42 mm voice coil · 70 W
Scanspeak 18WU/4747T00 4Ω
4 Ω
£304.08
3.3%Falcon Acoustics · In stock · All 4 offers
- Fs
- 36Hz
- Xmax
- 9mm
- SPL
- 88dB
- Pe
- 70W
- BL
- 5.9T·m
- Vd
- 139cm³
- Qts
- 0.35
- Vas
- 36L
Scanspeak 18WU/4747T00 is a 7-inch 4 ohm LF driver rated at 70 W RMS. The validated T/S data includes Fs 36 Hz, Qts 0.35, Vas 36 L, Xmax 9 mm, sensitivity 88.4 dB, plus 139 cm³ Vd and 92 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 £288.83.
The published T/S values agree with each other
Thiele/Small
- Fs
- 36Hz
- Qts
- 0.35
- Qes
- 0.39
- Qms
- 3.7
- Vas
- 36L
- Re
- 3.3Ω
- Le
- 0.40mH
Motor and cone
- BL
- 5.9T·m
- Sd
- 154cm²
- Mms
- 18g
- Xmax
- 9mm
- Vd †
- 139cm³
- Voice coil
- 42mm
Power and response
- Sensitivity †
- 88.4dB
- Manufacturer sensitivity
- 87.5dB
- Power
- 70W
- Impedance
- 4Ω
- Min. impedance
- 4.6Ω
- EBP †
- 92 · Sealed or vented
Size and mounting
- Diameter
- 180mm
Other published values
- Cms
- 1.10mm/N
- Rms
- 1.10kg/s
- Xmech
- 16
- Power Peak
- 150
† Calculated by bits from the published values
What this validation status means
Everything else Scanspeak lists
LF · Primary · 7″
- BL
- 5.9T·m
- Fs
- 36Hz
- Le
- 0.40mH
- Re
- 3.3Ω
- Sd
- 154cm²
- Cms
- 1.10mm/N
- Mms
- 18g
- Qes
- 0.39
- Qms
- 3.7
- Qts
- 0.35
- Rms
- 1.10kg/s
- SPL
- 88.4dB
- Vas
- 36L
- Xmax
- 9mm
- Xmech
- 16
- Power
- 70W
- Impedance
- 4Ω
- Power Peak
- 150
- Sensitivity
- 87.5dB
- Calculated sensitivity †
- 88.4dB
- Manufacturer sensitivity
- 87.5dB
- Min. impedance
- 4.6Ω
- Voice coil
- 42mm
- Diameter
- 180mm
02
Compare
Same-size drivers, compared with the 18WU/4747T00. Clear differences are green when better and red when worse.
This driver18WU/4747T00
Best price
£288.83
Fs
36 Hz
Qts
0.35
Vas
36 L
BL
5.9 T·m
Xmax
9 mm
Sensitivity
88.4 dB
Power
70 W
SB AcousticsSB16PFC25-4
£23.44 · 92% less, betterFs35 Hz –
Qts0.34 –
Vas32.7 L −9%
BL5 T·m −15%, worse
Xmax4.5 mm −50%, worse
Sensitivity87.6 dB −0.8
SB AcousticsSB17MFC35-8
£54.89 · 81% less, betterFs33 Hz −8%
Qts0.37 +6%
Vas39 L +8%
BL5.9 T·m –
Xmax5.5 mm −39%, worse
Sensitivity87.5 dB −0.9
SB AcousticsSB17NRXC35-8
£58.60 · 80% less, betterFs32 Hz −11%, better
Qts0.34 –
Vas44.5 L +24%, worse
BL5.9 T·m –
Xmax5.5 mm −39%, worse
Sensitivity88.1 dB –
SB AcousticsSB17NBAC35-8
£65.93 · 77% less, betterFs32 Hz −13%, better
Qts0.35 –
Vas45 L +25%, worse
BL5.9 T·m –
Xmax5.5 mm −39%, worse
Sensitivity87.7 dB −0.7
Scanspeak18W/4434G00
£72.01 · 75% less, betterFs47 Hz +31%, worse
Qts0.35 –
Vas20.7 L −43%, better
BL6 T·m –
Xmax4.3 mm −52%, worse
Sensitivity89.7 dB +1.3
Dayton AudioDCS205-4
£75.27 · 74% less, betterFs32 Hz −10%, better
Qts0.37 +6%
Vas27 L −25%, better
BL10.7 T·m +81%, better
Xmax8.8 mm –
Sensitivity85.6 dB −2.8, worse
SB AcousticsSB17CRC35-8
£85.53 · 70% less, betterFs28 Hz −22%, better
Qts0.34 –
Vas48 L +33%, worse
BL6 T·m –
Xmax5.5 mm −39%, worse
Sensitivity86.6 dB −1.8
SB AcousticsSB17CRC35-4
£85.53 · 70% less, betterFs32 Hz −13%, better
Qts0.32 −9%
Vas35.5 L –
BL5 T·m −15%, worse
Xmax5.5 mm −39%, worse
Sensitivity87 dB −1.4
SB AcousticsSB17CAC35-8
£87.88 · 70% less, betterFs28 Hz −22%, better
Qts0.36 –
Vas42 L +17%, worse
BL6.2 T·m +5%
Xmax5.5 mm −39%, worse
Sensitivity85.7 dB −2.7, worse
CIAREHWG160
£102.15 · 65% less, betterFs39 Hz +8%
Qts0.33 −6%
Vas27 L −25%, better
BL5.6 T·m −5%
Xmax6.5 mm −28%, worse
Sensitivity88.6 dB –
WavecorWF182BD17
£121.93 · 58% less, betterFs33 Hz −8%
Qts0.35 –
Vas24.3 L −32%, better
BL6.5 T·m +10%, better
Xmax5.5 mm −39%, worse
Sensitivity85.8 dB −2.6, worse
Scanspeak18W/4531G01
£168.82 · 42% less, betterFs34 Hz −6%
Qts0.35 –
Vas45.6 L +27%, worse
BL5.7 T·m −3%
Xmax6.5 mm −28%, worse
Sensitivity88.8 dB –
Scanspeak18W/4531G00
£179.98 · 38% less, betterFs33 Hz −8%
Qts0.35 –
Vas41.9 L +16%, worse
BL5.7 T·m −3%
Xmax6.5 mm −28%, worse
Sensitivity88 dB –
Beyma8NMFW
£228.68 · 21% less, betterFs37 Hz –
Qts0.34 –
Vas27 L −25%, better
BL13.4 T·m +127%, better
Xmax9 mm –
Sensitivity87.8 dB −0.6
£239.40 · 17% less, better
Fs40 Hz +11%, worse
Qts0.34 –
Vas24 L −33%, better
BL7 T·m +19%, better
Xmax7 mm −22%, worse
Sensitivity87.8 dB −0.6
Scanspeak18WU/8747T00
£284.64 · 1% lessFs36 Hz –
Qts0.38 +9%
Vas36.2 L –
BL7.4 T·m +25%, better
Xmax9 mm –
Sensitivity88 dB –
Scanspeak18WU/8741T00
£300.68 · 4% moreFs35 Hz –
Qts0.39 +11%, worse
Vas37.1 L +3%
BL7.3 T·m +24%, better
Xmax9 mm –
Sensitivity87.6 dB −0.8
Scanspeak18WU/4741T00
£304.20 · 5% more, worseFs34 Hz −6%
Qts0.36 –
Vas38.4 L +7%
BL5.9 T·m –
Xmax9 mm –
Sensitivity87.9 dB −0.5
AccutonAS168-9-470
£677.38 · 135% more, worseFs27 Hz −25%, better
Qts0.35 –
Vas35.5 L –
BL12.1 T·m +105%, better
Xmax8 mm −11%, worse
Sensitivity84.7 dB −3.7, worse
SB AcousticsSB17BAC35-8-COAX
No current priceFs35 Hz –
Qts0.33 −6%
Vas33.1 L −8%
BL5.7 T·m −3%
Xmax3.1 mm −66%, worse
Sensitivity88.1 dB –
No current price
Fs35 Hz –
Qts0.34 –
Vas31 L −14%, better
BL7.4 T·m +25%, better
Xmax7 mm −22%, worse
Sensitivity87.5 dB −0.9
WavecorWF182BD09
No current priceFs33 Hz −8%
Qts0.35 –
Vas24.3 L −32%, better
BL6.5 T·m +10%, better
Xmax5.5 mm −39%, worse
Sensitivity85.8 dB −2.6, worse
Supravox165 GMF
No current priceFs70 Hz +94%, worse
Qts0.39 +11%, worse
Vas40 L +11%, worse
BL5.6 T·m −5%
Xmax6 mm −33%, worse
Sensitivity97.2 dB +8.8, better
KartesianWOM155_VKI-C
No current priceFs38 Hz +6%
Qts0.37 +6%
Vas17.9 L −50%, better
BL7.1 T·m +20%, better
Xmax10 mm +11%, better
Sensitivity86 dB −2.4, worse
Audio Technology6 H 52 17 06 SD
No current priceFs33 Hz −8%
Qts0.35 –
Vas47 L +31%, worse
BL6.6 T·m +12%, better
Xmax6.3 mm −30%, worse
Sensitivity88.1 dB –
CIARECW169
No current priceFs46 Hz +28%, worse
Qts0.32 −9%
Vas21.2 L −41%, better
BL5.9 T·m –
Xmax5 mm −44%, worse
Sensitivity89.3 dB +0.9
PurifiPTT6.5X04-NAA-08
No current priceFs32 Hz −11%, better
Qts0.35 –
Vas20.5 L −43%, better
BL7.8 T·m +32%, better
Xmax9.8 mm +9%
Sensitivity84.6 dB −3.8, worse
PurifiPTT6.5X08-NFA-06
No current priceFs31 Hz −14%, better
Qts0.34 –
Vas26 L −28%, better
BL8.9 T·m +51%, better
Xmax9.8 mm +9%
Sensitivity85.4 dB −3, worse
CIARECW161N
No current priceFs52 Hz +44%, worse
Qts0.35 –
Vas17.4 L −52%, better
BL6.1 T·m –
Xmax4 mm −56%, worse
Sensitivity89.7 dB +1.3
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 |
|---|---|---|---|---|
Falcon Acoustics | £304.08, the lowest price | In stock | Visit shop at Falcon Acoustics | |
Willys-Hifi | £314.35 | 3.4% above the lowest price | Stock not listed | Visit shop at Willys-Hifi |
SoundImports Import VAT and duty may apply | £288.83 | 4 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£321.95 → £314.35Down 2.4% from £321.95
- 30 SepWillys-Hifi£320.95 → £321.95Up 0.3% from £320.95
- 29 SepWillys-Hifi£321.95 → £320.95Down 0.3% from £321.95