Dayton AudioGF180-4
£18.70 · 66% less, betterFs49 Hz +34%, worse
Qts0.42 –
Vas16.5 L −39%, better
BL6.5 T·m +4%
Xmax4 mm −27%, worse
Sensitivity88.1 dB +1.6
6-inch LF driver · SB17 series · 36 mm voice coil · 50 W
SB Acoustics SB17NRX2C35-8 8Ω
8 Ω
£55.41
SteadyLean Business · All 7 offers
- Fs
- 37Hz
- Xmax
- 5.5mm
- SPL
- 87dB
- Pe
- 50W
- BL
- 6.3T·m
- Vd
- 65cm³
- Qts
- 0.42
- Vas
- 27L
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/v1
30 degrees
Frequency response
240 plotted pointsMedium confidence2,038 selected pixels of 3,192 - Trace datasheet-response-trace-poc/v1
60 degrees
Frequency response
240 plotted pointsMedium confidence1,304 selected pixels of 3,219 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence2,020 selected pixels of 5,162
Published graphs
SB Acoustics SB17NRX2C35-8 is a 6-inch 8 ohm LF driver rated at 50 W RMS. The validated T/S data includes Fs 37 Hz, Qts 0.42, Vas 27 L, Xmax 5.5 mm, sensitivity 86.5 dB, plus 65 cm³ Vd and 78 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 £55.41.
The published T/S values agree with each other
Thiele/Small
- Fs
- 37Hz
- Qts
- 0.42
- Qes
- 0.47
- Qms
- 4.5
- Vas
- 27L
- Re
- 5.7Ω
- Le
- 0.15mH
Motor and cone
- BL
- 6.3T·m
- Sd
- 118cm²
- Mms
- 14g
- Xmax
- 5.5mm
- Vd †
- 65cm³
- Voice coil
- 36mm
- Flux density
- 0.93T
Power and response
- Sensitivity †
- 86.5dB
- Manufacturer sensitivity
- 87dB
- Power
- 50W
- Impedance
- 8Ω
- EBP †
- 78 · Sealed or vented
Size and mounting
- Weight
- 1.6kg
Other published values
- Cms
- 1.37mm/N
† Calculated by bits from the published values
What this validation status means
Everything else SB Acoustics lists
LF · Primary · 6″
- BL
- 6.3T·m
- Fs
- 37Hz
- Le
- 0.15mH
- Re
- 5.7Ω
- Sd
- 118cm²
- Cms
- 1.37mm/N
- Mms
- 14g
- Qes
- 0.47
- Qms
- 4.5
- Qts
- 0.42
- SPL
- 86.5dB
- Vas
- 27L
- Xmax
- 5.5mm
- Power
- 50W
- Impedance
- 8Ω
- Flux density
- 0.93T
- Sensitivity
- 87dB
- Calculated sensitivity †
- 86.5dB
- Manufacturer sensitivity
- 87dB
- Voice coil
- 36mm
- Weight
- 1.6kg
02
Compare
Same-size drivers, compared with the SB17NRX2C35-8. Clear differences are green when better and red when worse.
This driverSB17NRX2C35-8
Best price
£55.41
Fs
37 Hz
Qts
0.42
Vas
27 L
BL
6.3 T·m
Xmax
5.5 mm
Sensitivity
86.5 dB
Power
50 W
SB AcousticsSB16PFCR25-8
£24.27 · 56% less, betterFs38 Hz +4%
Qts0.40 −5%
Vas27 L –
BL6.2 T·m –
Xmax4.5 mm −18%, worse
Sensitivity86.9 dB –
PeerlessSDS-P830657
£25.08 · 55% less, betterFs48 Hz +32%, worse
Qts0.47 +12%, worse
Vas20.1 L −26%, better
BL6.9 T·m +11%, better
Xmax5.5 mm –
Sensitivity88 dB +1.5
SB AcousticsSB16PFC25-8
£27.08 · 51% less, betterFs38 Hz +4%
Qts0.40 −5%
Vas27 L –
BL6.2 T·m –
Xmax4.5 mm −18%, worse
Sensitivity86.9 dB –
Dayton AudioDS135-8
£29.91 · 46% less, betterFs53 Hz +44%, worse
Qts0.39 −7%
Vas7.3 L −73%, better
BL6.2 T·m –
Xmax4.8 mm −12%, worse
Sensitivity85.4 dB −1.1
REDCATT61FHM-1
£39.86 · 28% less, betterFs37 Hz –
Qts0.49 +17%, worse
Vas28.2 L +4%
BL6.6 T·m +6%
Xmax6.3 mm +15%, better
Sensitivity86.4 dB –
SB AcousticsSB17MFC35-8
£54.89 · Same priceFs33 Hz −10%
Qts0.37 −12%, better
Vas39 L +44%, worse
BL5.9 T·m −6%
Xmax5.5 mm –
Sensitivity87.5 dB +1
SB AcousticsSB17NRX2C35-4
£55.41 · Same priceFs36 Hz –
Qts0.37 −12%, better
Vas27.6 L –
BL4.9 T·m −22%, worse
Xmax5.5 mm –
Sensitivity87 dB +0.5
Sica6.5 H 1.5 CP
£56.02 · 1% moreFs45 Hz +24%, worse
Qts0.42 –
Vas20.2 L −25%, better
BL7.0 T·m +12%, better
Xmax6 mm +9%
Sensitivity88.2 dB +1.7
MonacorSPH-176
£58.80 · 6% more, worseFs39 Hz +7%
Qts0.37 −12%, better
Vas27 L –
BL7.7 T·m +23%, better
Xmax5.5 mm –
Sensitivity87.6 dB +1.1
Dayton AudioRS180P-4
£59.83 · 8% more, worseFs38 Hz +3%
Qts0.39 −7%
Vas27.3 L –
BL4.7 T·m −25%, worse
Xmax6 mm +9%
Sensitivity86.9 dB –
MonacorSPH-175HQ
£68.66 · 24% more, worseFs39 Hz +7%
Qts0.42 –
Vas33 L +22%, worse
BL6.4 T·m –
Xmax5.5 mm –
Sensitivity88 dB +1.5
SB AcousticsSB17NAC35-8
£70.75 · 28% more, worseFs32 Hz −14%, better
Qts0.42 –
Vas33 L +22%, worse
BL6.2 T·m –
Xmax5.5 mm –
Sensitivity85.6 dB −0.9
Dayton AudioRS180S-8
£78.62 · 42% more, worseFs38 Hz +3%
Qts0.36 −14%, better
Vas23 L −15%, better
BL7.3 T·m +16%, better
Xmax6 mm +9%
Sensitivity86 dB −0.5
SB AcousticsSB15CRC30-8
£81.08 · 46% more, worseFs40 Hz +10%
Qts0.41 –
Vas14.9 L −45%, better
BL5.6 T·m −10%, worse
Xmax5.5 mm –
Sensitivity85.2 dB −1.3
WavecorWF168WA05
£102.24 · 85% more, worseFs40 Hz +10%
Qts0.42 –
Vas27.7 L –
BL5 T·m −20%, worse
Xmax3 mm −45%, worse
Sensitivity88 dB +1.5
WavecorWF182BD17
£121.93 · 120% more, worseFs33 Hz −10%
Qts0.35 −17%, better
Vas24.3 L −10%
BL6.5 T·m +4%
Xmax5.5 mm –
Sensitivity85.8 dB −0.7
SEASH1480 L16RN-SL
£123.54 · 123% more, worseFs37 Hz –
Qts0.45 +7%
Vas19 L −30%, better
BL6.1 T·m –
Xmax6 mm +9%
Sensitivity84.5 dB −2, worse
£125.61 · 127% more, worse
Fs43 Hz +18%, worse
Qts0.37 −12%, better
Vas22 L −19%, better
BL6.9 T·m +10%, better
Xmax6 mm +9%
Sensitivity87.9 dB +1.4
Scanspeak15W/8534T00
£154.86 · 179% more, worseFs32 Hz −12%, better
Qts0.39 −7%
Vas30 L +11%, worse
BL5.5 T·m −12%, worse
Xmax5 mm −9%
Sensitivity85.6 dB −0.9
£376.75 · 580% more, worse
Fs34 Hz −7%
Qts0.42 –
Vas30 L +11%, worse
BL6.6 T·m +6%
Xmax5 mm −9%
Sensitivity85.8 dB −0.7
HiViSS6.5
No current priceFs42 Hz +15%, worse
Qts0.39 −7%
Vas24.8 L −8%
BL6.4 T·m –
Xmax5.8 mm +5%
Sensitivity88.1 dB +1.6
HiViS6.5
No current priceFs47 Hz +29%, worse
Qts0.42 –
Vas18.4 L −32%, better
BL6.4 T·m –
Xmax5.8 mm +5%
Sensitivity88.1 dB +1.6
HiViSS6.5R
No current priceFs42 Hz +15%, worse
Qts0.39 −7%
Vas21.6 L −20%, better
BL6.5 T·m +4%
Xmax5.8 mm +5%
Sensitivity87.7 dB +1.2
HiViS6.5R
No current priceFs41 Hz +12%, worse
Qts0.38 −10%
Vas23.2 L −14%, better
BL6.5 T·m +4%
Xmax5.8 mm +5%
Sensitivity87.8 dB +1.3
WavecorWF182BD11
No current priceFs34 Hz −7%
Qts0.42 –
Vas24.3 L −10%
BL8.2 T·m +31%, better
Xmax5.5 mm –
Sensitivity85.4 dB −1.1
WavecorWF182BD19
No current priceFs34 Hz −7%
Qts0.42 –
Vas24.3 L −10%
BL8.2 T·m +31%, better
Xmax5.5 mm –
Sensitivity85.4 dB −1.1
Tang BandW6-658I
No current priceFs45 Hz +23%, worse
Qts0.44 +5%
Vas28.3 L +5%
BL6.3 T·m –
Xmax4.1 mm −25%, worse
Sensitivity89.2 dB +2.7, better
WavecorWF182BD09
No current priceFs33 Hz −10%
Qts0.35 −17%, better
Vas24.3 L −10%
BL6.5 T·m +4%
Xmax5.5 mm –
Sensitivity85.8 dB −0.7
Tang BandW6-623I
No current priceFs46 Hz +26%, worse
Qts0.41 –
Vas29.8 L +10%, worse
BL6.7 T·m +7%
Xmax4 mm −27%, worse
Sensitivity90.1 dB +3.6, 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 57 ratings · Checked 24 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 |
|---|---|---|---|---|
Lean Business | £55.41, the lowest price | Stock not listed | Visit shop at Lean Business | |
Lean Audio | £55.41 | Back order | Visit shop at Lean Audio | |
Willys-Hifi | £72.30 | 31% above the lowest price | Stock not listed | Visit shop at Willys-Hifi |
RumoH Import VAT and duty may apply | £63.47 | 15% above the lowest price | Stock not listed | Visit shop at RumoH |
SoundImports Import VAT and duty may apply | £63.59 | 15% above the lowest price | 14 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£74.95 → £72.30Down 3.5% from £74.95
- 30 SepWillys-Hifi£73.95 → £74.95Up 1.4% from £73.95
- 16 SepWillys-Hifi£74.95 → £73.95Down 1.3% from £74.95