SB AcousticsSB16PFCR25-4
£22.03 · 63% less, betterFs35 Hz –
Qts0.34 +6%
Vas32.7 L −7%
BL5 T·m +4%
Xmax9 mm +64%, better
Sensitivity87.6 dB −0.9
6-inch LF driver · SB17 series · 36 mm voice coil · 60 W
SB Acoustics SB17NRXC35-4 4Ω
4 Ω
£61.65
0.3%RumoH · Ships from Netherlands · All 3 offers
- Fs
- 35Hz
- Xmax
- 5.5mm
- SPL
- 89dB
- Pe
- 60W
- BL
- 4.8T·m
- Vd
- 65cm³
- Qts
- 0.32
- Vas
- 35L
Published graphs
SB Acoustics SB17NRXC35-4 is a 6-inch 4 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 35 Hz, Qts 0.32, Vas 35.2 L, Xmax 5.5 mm, sensitivity 88.5 dB, plus 65 cm³ Vd and 103 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 £58.90.
The published T/S values agree with each other
Thiele/Small
- Fs
- 35Hz
- Qts
- 0.32
- Qes
- 0.34
- Qms
- 5.5
- Vas
- 35.2L
- Re
- 3.1Ω
- Le
- 0.13mH
Motor and cone
- BL
- 4.8T·m
- Sd
- 118cm²
- Mms
- 12g
- Xmax
- 5.5mm
- Vd †
- 65cm³
- Voice coil
- 36mm
- Flux density
- 1T
Power and response
- Sensitivity †
- 88.5dB
- Manufacturer sensitivity
- 92dB
- Power
- 60W
- Impedance
- 4Ω
- EBP †
- 103 · Leans vented
Size and mounting
- Weight
- 1.6kg
Other published values
- Cms
- 1.78mm/N
Sensitivity shows 88.5 dB, calculated from the T/S values. SB Acoustics publishes 92.0 dB, 3.5 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else SB Acoustics lists
LF · Primary · 6″
- BL
- 4.8T·m
- Fs
- 35Hz
- Le
- 0.13mH
- Re
- 3.1Ω
- Sd
- 118cm²
- Cms
- 1.78mm/N
- Mms
- 12g
- Qes
- 0.34
- Qms
- 5.5
- Qts
- 0.32
- SPL
- 88.5dB
- Vas
- 35.2L
- Xmax
- 5.5mm
- Power
- 60W
- Impedance
- 4Ω
- Flux density
- 1T
- Sensitivity
- 92dB
- Calculated sensitivity †
- 88.5dB
- Manufacturer sensitivity
- 92dB
- Voice coil
- 36mm
- Weight
- 1.6kg
02
Compare
Same-size drivers, compared with the SB17NRXC35-4. Clear differences are green when better and red when worse.
This driverSB17NRXC35-4
Best price
£58.90
Fs
35 Hz
Qts
0.32
Vas
35.2 L
BL
4.8 T·m
Xmax
5.5 mm
Sensitivity
88.5 dB
Power
60 W
SB AcousticsSB16PFC25-4
£23.73 · 60% less, betterFs35 Hz –
Qts0.34 +6%
Vas32.7 L −7%
BL5 T·m +4%
Xmax4.5 mm −18%, worse
Sensitivity87.6 dB −0.9
SB AcousticsSB16PFC25-4-COAX
£48.27 · 18% less, betterFs36 Hz –
Qts0.31 −3%
Vas31.3 L −11%, better
BL5.1 T·m +6%
Xmax4.7 mm −15%, worse
Sensitivity88.2 dB –
SB AcousticsSB16PFCR25-4-COAX
£49.62 · 16% less, betterFs36 Hz –
Qts0.31 −3%
Vas31.3 L −11%, better
BL5.1 T·m +6%
Xmax4.7 mm −15%, worse
Sensitivity88.2 dB –
SB AcousticsSB15NRXC30-8
£54.80 · 7% less, betterFs38 Hz +9%
Qts0.33 +3%
Vas20.7 L −41%, better
BL5.6 T·m +17%, better
Xmax5 mm −9%
Sensitivity87.1 dB −1.4
SB AcousticsSB15NRXC30-4
£54.80 · 7% less, betterFs41 Hz +17%, worse
Qts0.29 −9%
Vas16.7 L −53%, better
BL4.7 T·m –
Xmax5 mm −9%
Sensitivity87.7 dB −0.8
SB AcousticsSB17NRXC35-8
£59.32 · Same priceFs32 Hz −9%
Qts0.34 +6%
Vas44.5 L +26%, worse
BL5.9 T·m +23%, better
Xmax5.5 mm –
Sensitivity88.1 dB –
HiViE6.5
£64.28 · 9% more, worseFs37 Hz +6%
Qts0.32 –
Vas31 L −12%, better
BL8.1 T·m +69%, better
Xmax5.8 mm +5%
Sensitivity88.3 dB –
SB AcousticsSB17NBAC35-4
£65.93 · 12% more, worseFs30 Hz −14%, better
Qts0.29 −9%
Vas42.6 L +21%, worse
BL4.9 T·m –
Xmax11 mm +100%, better
Sensitivity87.7 dB −0.8
SB AcousticsSB15NAC30-4
£70.31 · 19% more, worseFs35 Hz –
Qts0.30 −6%
Vas18.3 L −48%, better
BL4.8 T·m –
Xmax5 mm −9%
Sensitivity85.9 dB −2.6, worse
SB AcousticsSB17NAC35-4
£72.00 · 22% more, worseFs32 Hz −9%
Qts0.32 –
Vas33 L −6%
BL5.2 T·m +8%
Xmax5.5 mm –
Sensitivity87.1 dB −1.4
SB AcousticsSB15CAC30-4
£76.56 · 30% more, worseFs33 Hz −7%
Qts0.31 −3%
Vas20.2 L −43%, better
BL4.6 T·m −4%
Xmax10 mm +82%, better
Sensitivity85.1 dB −3.4, worse
SB AcousticsSB17CRC35-4
£85.53 · 45% more, worseFs32 Hz −10%, better
Qts0.32 –
Vas35.5 L –
BL5 T·m +4%
Xmax11 mm +100%, better
Sensitivity87 dB −1.5
CIAREHWG160
£103.41 · 76% more, worseFs39 Hz +11%, worse
Qts0.33 +3%
Vas27 L −23%, better
BL5.6 T·m +17%, better
Xmax6.5 mm +18%, better
Sensitivity88.6 dB –
SEASH1215-08 CA18RNX
£109.67 · 86% more, worseFs35 Hz –
Qts0.31 −3%
Vas33 L −6%
BL7.2 T·m +50%, better
Xmax6 mm +9%
Sensitivity87.9 dB −0.6
SEASH1456-08 ER18RNX
£110.64 · 88% more, worseFs37 Hz +6%
Qts0.32 –
Vas32 L −9%
BL7.2 T·m +50%, better
Xmax6 mm +9%
Sensitivity88.2 dB –
SB AcousticsMR16PNW-8
£161.00 · 173% more, worseFs31 Hz −11%, better
Qts0.32 –
Vas44.8 L +27%, worse
BL6.5 T·m +35%, better
Xmax6.2 mm +13%, better
Sensitivity88 dB −0.5
WavecorWF182BD08
£193.00 · 228% more, worseFs33 Hz −5%
Qts0.29 −9%
Vas32.4 L −8%
BL8.5 T·m +77%, better
Xmax5.5 mm –
Sensitivity88.1 dB –
Tang BandW5-1880
£211.90 · 260% more, worseFs48 Hz +37%, worse
Qts0.32 –
Vas26.5 L −25%, better
BL5.5 T·m +14%, better
Xmax5 mm −9%
Sensitivity90.9 dB +2.4, better
SB AcousticsMR16TX-8
£249.00 · 323% more, worseFs35 Hz –
Qts0.31 −3%
Vas38.9 L +11%, worse
BL6.6 T·m +38%, better
Xmax5.7 mm +4%
Sensitivity89.2 dB +0.7
SB AcousticsMW16PF-4
No current priceFs28 Hz −20%, better
Qts0.33 +3%
Vas49 L +39%, worse
BL4.7 T·m –
Xmax5.5 mm –
Sensitivity86.9 dB −1.6
WavecorWF182BD10
No current priceFs29 Hz −19%, better
Qts0.31 −3%
Vas32.4 L −8%
BL6.5 T·m +35%, better
Xmax5.5 mm –
Sensitivity85.7 dB −2.8, worse
WavecorWF182BD18
No current priceFs29 Hz −19%, better
Qts0.31 −3%
Vas32.4 L −8%
BL6.5 T·m +35%, better
Xmax5.5 mm –
Sensitivity85.7 dB −2.8, worse
WavecorWF182BD15
No current priceFs39 Hz +11%, worse
Qts0.32 –
Vas20.8 L −41%, better
BL8.5 T·m +77%, better
Xmax5.5 mm –
Sensitivity87.8 dB −0.7
Audio Technology15 J 52 15 06 SD
No current priceFs45 Hz +29%, worse
Qts0.32 –
Vas15 L −57%, better
BL5.5 T·m +15%, better
Xmax5.2 mm −5%
Sensitivity87.7 dB −0.8
WavecorWF182BD07
No current priceFs40 Hz +14%, worse
Qts0.34 +6%
Vas24.4 L −31%, better
BL8.5 T·m +77%, better
Xmax5.5 mm –
Sensitivity88.5 dB –
VoltBM165.4
No current priceFs32 Hz −9%
Qts0.30 −6%
Vas32.3 L −8%
BL9.6 T·m +100%, better
Xmax6 mm +9%
Sensitivity87.2 dB −1.3
SB AcousticsSB17BAC35-8-COAX
No current priceFs35 Hz –
Qts0.33 +3%
Vas33.1 L −6%
BL5.7 T·m +19%, better
Xmax3.1 mm −44%, worse
Sensitivity88.1 dB –
No current price
Fs32 Hz −9%
Qts0.30 −6%
Vas29 L −18%, better
BL8.5 T·m +77%, better
Xmax5 mm −9%
Sensitivity86.8 dB −1.7
CIARECW169
No current priceFs46 Hz +31%, worse
Qts0.32 –
Vas21.2 L −40%, better
BL5.9 T·m +24%, better
Xmax5 mm −9%
Sensitivity89.3 dB +0.8
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 56 ratings · Checked 12 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 |
|---|---|---|---|---|
RumoH Import VAT and duty may apply | £61.65, the lowest price | Stock not listed | Visit shop at RumoH | |
SoundImports Import VAT and duty may apply | £61.83 | 0.3% above the lowest price | 6 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr