SB AcousticsSB16PFC25-4
£23.73 · 60% less, betterFs35 Hz +9%
Qts0.34 –
Vas32.7 L −27%, better
BL5 T·m −15%, worse
Xmax4.5 mm −18%, worse
Sensitivity87.6 dB −0.5
6-inch LF driver · SB17 series · 36 mm voice coil · 60 W
SB Acoustics SB17NRXC35-8 8Ω
8 Ω
£61.65
0.3%RumoH · Ships from Netherlands · All 3 offers
- Fs
- 32Hz
- Xmax
- 5.5mm
- SPL
- 88dB
- Pe
- 60W
- BL
- 5.9T·m
- Vd
- 65cm³
- Qts
- 0.34
- Vas
- 45L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 3 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v2
30 degrees
Frequency response
240 plotted pointsSource file SHA-256 ecd2794ff840…Medium confidence3,199 selected pixels of 5,095 - Trace datasheet-response-trace-poc/v2
60 degrees
Frequency response
213 plotted pointsSource file SHA-256 ecd2794ff840…Medium confidence1,680 selected pixels of 4,279 - Trace datasheet-response-trace-poc/v2
impedance
Impedance response
240 plotted pointsSource file SHA-256 ecd2794ff840…Medium confidence2,983 selected pixels of 9,195
Published graphs
SB Acoustics SB17NRXC35-8 is a 6-inch 8 ohm LF driver rated at 60 W RMS. The validated T/S data includes Fs 32 Hz, Qts 0.34, Vas 44.5 L, Xmax 5.5 mm, sensitivity 88.1 dB, plus 65 cm³ Vd and 89 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 £59.32.
The published T/S values agree with each other
Thiele/Small
- Fs
- 32Hz
- Qts
- 0.34
- Qes
- 0.36
- Qms
- 5
- Vas
- 44.5L
- Re
- 5.7Ω
- Le
- 0.15mH
Motor and cone
- BL
- 5.9T·m
- Sd
- 118cm²
- Mms
- 11g
- Xmax
- 5.5mm
- Vd †
- 65cm³
- Voice coil
- 36mm
- Flux density
- 1T
Power and response
- Sensitivity †
- 88.1dB
- Manufacturer sensitivity
- 89dB
- Power
- 60W
- Impedance
- 8Ω
- EBP †
- 89 · Sealed or vented
Size and mounting
- Weight
- 1.6kg
Other published values
- Cms
- 2.25mm/N
† Calculated by bits from the published values
What this validation status means
Everything else SB Acoustics lists
LF · Primary · 6″
- BL
- 5.9T·m
- Fs
- 32Hz
- Le
- 0.15mH
- Re
- 5.7Ω
- Sd
- 118cm²
- Cms
- 2.25mm/N
- Mms
- 11g
- Qes
- 0.36
- Qms
- 5
- Qts
- 0.34
- SPL
- 88.1dB
- Vas
- 44.5L
- Xmax
- 5.5mm
- Power
- 60W
- Impedance
- 8Ω
- Flux density
- 1T
- Sensitivity
- 89dB
- Calculated sensitivity †
- 88.1dB
- Manufacturer sensitivity
- 89dB
- Voice coil
- 36mm
- Weight
- 1.6kg
02
Compare
Same-size drivers, compared with the SB17NRXC35-8. Clear differences are green when better and red when worse.
This driverSB17NRXC35-8
Best price
£59.32
Fs
32 Hz
Qts
0.34
Vas
44.5 L
BL
5.9 T·m
Xmax
5.5 mm
Sensitivity
88.1 dB
Power
60 W
Eighteen Sound5W430
£44.95 · 24% less, betterFs52 Hz +63%, worse
Qts0.32 −6%
Vas15 L −66%, better
BL6.3 T·m +7%
Xmax6 mm +9%
Sensitivity89.7 dB +1.6
SB AcousticsSB15NRXC30-8
£54.80 · 8% less, betterFs38 Hz +19%, worse
Qts0.33 –
Vas20.7 L −53%, better
BL5.6 T·m −5%
Xmax5 mm −9%
Sensitivity87.1 dB −1
SB AcousticsSB17NRXC35-4
£58.90 · Same priceFs35 Hz +9%
Qts0.32 −6%
Vas35.2 L −21%, better
BL4.8 T·m −19%, worse
Xmax5.5 mm –
Sensitivity88.5 dB –
SB AcousticsSB17NBAC35-8
£65.93 · 11% more, worseFs32 Hz –
Qts0.35 –
Vas45 L –
BL5.9 T·m –
Xmax11 mm +100%, better
Sensitivity87.7 dB –
SB AcousticsSB17NAC35-4
£72.00 · 21% more, worseFs32 Hz –
Qts0.32 −6%
Vas33 L −26%, better
BL5.2 T·m −12%, worse
Xmax5.5 mm –
Sensitivity87.1 dB −1
SB AcousticsSB17CRC35-8
£85.53 · 44% more, worseFs28 Hz −13%, better
Qts0.34 –
Vas48 L +8%
BL6 T·m –
Xmax11 mm +100%, better
Sensitivity86.6 dB −1.5
WavecorWF152BD09
£111.20 · 87% more, worseFs52 Hz +63%, worse
Qts0.34 –
Vas8.6 L −81%, better
BL5.8 T·m –
Xmax4.5 mm −18%, worse
Sensitivity87.4 dB −0.7
WavecorWF182BD17
£123.30 · 108% more, worseFs33 Hz +3%
Qts0.35 –
Vas24.3 L −45%, better
BL6.5 T·m +10%, better
Xmax5.5 mm –
Sensitivity85.8 dB −2.3, worse
SB AcousticsMW16P-8
£145.30 · 145% more, worseFs29 Hz −9%
Qts0.33 –
Vas48 L +8%
BL6.3 T·m +7%
Xmax12 mm +118%, better
Sensitivity87.3 dB −0.8
SB AcousticsMR16PNW-8
£161.00 · 171% more, worseFs31 Hz −3%
Qts0.32 −6%
Vas44.8 L –
BL6.5 T·m +10%, better
Xmax6.2 mm +13%, better
Sensitivity88 dB –
SB AcousticsMR16P-8
£161.00 · 171% more, worseFs32 Hz –
Qts0.30 −12%, better
Vas44.3 L –
BL6.5 T·m +10%, better
Xmax6.2 mm +13%, better
Sensitivity88.6 dB +0.5
Scanspeak18W/4531G01
£168.82 · 185% more, worseFs34 Hz +6%
Qts0.35 –
Vas45.6 L –
BL5.7 T·m −3%
Xmax6.5 mm +18%, better
Sensitivity88.8 dB +0.7
Scanspeak18W/4531G00
£182.19 · 207% more, worseFs33 Hz +3%
Qts0.35 –
Vas41.9 L −6%
BL5.7 T·m −3%
Xmax6.5 mm +18%, better
Sensitivity88 dB –
Tang BandW5-1880
£211.90 · 257% more, worseFs48 Hz +50%, worse
Qts0.32 −6%
Vas26.5 L −41%, better
BL5.5 T·m −7%
Xmax5 mm −9%
Sensitivity90.9 dB +2.8, better
SB AcousticsMR16TX-8
£249.00 · 320% more, worseFs35 Hz +9%
Qts0.31 −9%
Vas38.9 L −13%, better
BL6.6 T·m +12%, better
Xmax5.7 mm +4%
Sensitivity89.2 dB +1.1
SB AcousticsMW16TX-8
£253.43 · 327% more, worseFs29 Hz −8%
Qts0.33 –
Vas48 L +8%
BL6.3 T·m +7%
Xmax12 mm +118%, better
Sensitivity87.4 dB −0.7
Scanspeak18WU/4747T00
£292.38 · 393% more, worseFs36 Hz +13%, worse
Qts0.35 –
Vas36 L −19%, better
BL5.9 T·m –
Xmax9 mm +64%, better
Sensitivity88.4 dB –
Scanspeak18WU/4741T00
£313.57 · 429% more, worseFs34 Hz +6%
Qts0.36 +6%
Vas38.4 L −14%, better
BL5.9 T·m –
Xmax9 mm +64%, better
Sensitivity87.9 dB –
SB AcousticsMW16PF-4
No current priceFs28 Hz −13%, better
Qts0.33 –
Vas49 L +10%, worse
BL4.7 T·m −20%, worse
Xmax5.5 mm –
Sensitivity86.9 dB −1.2
SB AcousticsMW16PF-8
No current priceFs29 Hz −9%
Qts0.38 +12%, worse
Vas48.4 L +9%
BL5.8 T·m –
Xmax5.5 mm –
Sensitivity86.5 dB −1.6
WavecorWF182BD09
No current priceFs33 Hz +3%
Qts0.35 –
Vas24.3 L −45%, better
BL6.5 T·m +10%, better
Xmax5.5 mm –
Sensitivity85.8 dB −2.3, worse
WavecorWF182BD10
No current priceFs29 Hz −11%, better
Qts0.31 −9%
Vas32.4 L −27%, better
BL6.5 T·m +10%, better
Xmax5.5 mm –
Sensitivity85.7 dB −2.4, worse
WavecorWF182BD18
No current priceFs29 Hz −11%, better
Qts0.31 −9%
Vas32.4 L −27%, better
BL6.5 T·m +10%, better
Xmax5.5 mm –
Sensitivity85.7 dB −2.4, worse
Audio Technology6 H 52 17 06 SD
No current priceFs33 Hz +3%
Qts0.35 –
Vas47 L +6%
BL6.6 T·m +12%, better
Xmax6.3 mm +15%, better
Sensitivity88.1 dB –
Supravox165 GMF
No current priceFs70 Hz +119%, worse
Qts0.39 +15%, worse
Vas40 L −10%, better
BL5.6 T·m −5%
Xmax6 mm +9%
Sensitivity97.2 dB +9.1, better
KartesianLOM155_VKI
No current priceFs48 Hz +50%, worse
Qts0.33 –
Vas16.6 L −63%, better
BL6.3 T·m +8%
Xmax6 mm +9%
Sensitivity89.1 dB +1
CIARECW169
No current priceFs46 Hz +44%, worse
Qts0.32 −6%
Vas21.2 L −52%, better
BL5.9 T·m –
Xmax5 mm −9%
Sensitivity89.3 dB +1.2
SB AcousticsSB17BAC35-8-COAX
No current priceFs35 Hz +10%, worse
Qts0.33 –
Vas33.1 L −26%, better
BL5.7 T·m −3%
Xmax3.1 mm −44%, worse
Sensitivity88.1 dB –
Audio Technology15 J 52 15 06 SD
No current priceFs45 Hz +41%, worse
Qts0.32 −6%
Vas15 L −66%, better
BL5.5 T·m −7%
Xmax5.2 mm −5%
Sensitivity87.7 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports4.5 out of 54 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