Dayton AudioGF180-4
£18.91 · 31% less, betterFs49 Hz +29%, worse
Qts0.42 +5%
Vas16.5 L −39%, better
BL6.5 T·m +5%
Xmax4 mm −11%, worse
Sensitivity88.1 dB +1.2
6-inch LF driver · SB16 series · 25 mm voice coil · 40 W
SB Acoustics SB16PFC25-8 8Ω
8 Ω
£27.41
3.3%RumoH · In stock · Ships from Netherlands · All 3 offers
- Fs
- 38Hz
- Xmax
- 4.5mm
- SPL
- 87dB
- Pe
- 40W
- BL
- 6.2T·m
- Vd
- 56cm³
- Qts
- 0.40
- Vas
- 27L
Published graphs
SB Acoustics SB16PFC25-8 is a 6-inch 8 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 38 Hz, Qts 0.40, Vas 27 L, Xmax 4.5 mm, sensitivity 86.9 dB, plus 56 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 £27.41.
The published T/S values agree with each other
Thiele/Small
- Fs
- 38Hz
- Qts
- 0.40
- Qes
- 0.48
- Qms
- 2.5
- Vas
- 27L
- Re
- 5.6Ω
- Le
- 0.77mH
Motor and cone
- BL
- 6.2T·m
- Sd
- 124cm²
- Mms
- 14g
- Xmax
- 4.5mm
- Vd †
- 56cm³
- Voice coil
- 25mm
- Flux density
- 1.07T
Power and response
- Sensitivity †
- 86.9dB
- Manufacturer sensitivity
- 87dB
- Power
- 40W
- Impedance
- 8Ω
- EBP †
- 79 · Sealed or vented
Size and mounting
- Weight
- 1.0kg
Other published values
- Cms
- 1.25mm/N
† Calculated by bits from the published values
What this validation status means
Everything else SB Acoustics lists
LF · Primary · 6″
- BL
- 6.2T·m
- Fs
- 38Hz
- Le
- 0.77mH
- Re
- 5.6Ω
- Sd
- 124cm²
- Cms
- 1.25mm/N
- Mms
- 14g
- Qes
- 0.48
- Qms
- 2.5
- Qts
- 0.40
- SPL
- 86.9dB
- Vas
- 27L
- Xmax
- 4.5mm
- Power
- 40W
- Impedance
- 8Ω
- Flux density
- 1.07T
- Sensitivity
- 87dB
- Calculated sensitivity †
- 86.9dB
- Manufacturer sensitivity
- 87dB
- Voice coil
- 25mm
- Weight
- 1.0kg
02
Compare
Same-size drivers, compared with the SB16PFC25-8. Clear differences are green when better and red when worse.
This driverSB16PFC25-8
Best price
£27.41
Fs
38 Hz
Qts
0.40
Vas
27 L
BL
6.2 T·m
Xmax
4.5 mm
Sensitivity
86.9 dB
Power
40 W
HiViM6N
£21.16 · 23% less, betterFs46 Hz +21%, worse
Qts0.39 –
Vas21.9 L −19%, better
BL7.8 T·m +26%, better
Xmax4.3 mm −4%
Sensitivity89.1 dB +2.2, better
SB AcousticsSB16PFCR25-8
£24.57 · 10% less, betterFs38 Hz –
Qts0.40 –
Vas27 L –
BL6.2 T·m –
Xmax9 mm +100%, better
Sensitivity86.9 dB –
Dayton AudioDS135-8
£30.24 · 10% more, worseFs53 Hz +38%, worse
Qts0.39 –
Vas7.3 L −73%, better
BL6.2 T·m –
Xmax4.8 mm +8%
Sensitivity85.4 dB −1.5
Dayton AudioDSA135-8
£30.24 · 10% more, worseFs52 Hz +36%, worse
Qts0.38 −5%
Vas7.9 L −71%, better
BL6.2 T·m –
Xmax4.9 mm +9%
Sensitivity85.7 dB −1.2
CIAREHW131
£31.36 · 14% more, worseFs68 Hz +79%, worse
Qts0.39 –
Vas5.6 L −79%, better
BL7.0 T·m +13%, better
Xmax4.4 mm –
Sensitivity87.9 dB +1
CIAREHW161N
£44.08 · 61% more, worseFs47 Hz +24%, worse
Qts0.37 −8%
Vas19.9 L −26%, better
BL7.4 T·m +20%, better
Xmax5 mm +11%, better
Sensitivity88.6 dB +1.7
SB AcousticsSB17NRX2C35-8
£55.41 · 102% more, worseFs37 Hz −4%
Qts0.42 +5%
Vas27 L –
BL6.3 T·m –
Xmax11 mm +144%, better
Sensitivity86.5 dB –
Scanspeak18W/8434G00
£57.57 · 110% more, worseFs50 Hz +32%, worse
Qts0.43 +7%
Vas19.5 L −28%, better
BL7.2 T·m +16%, better
Xmax4.2 mm −7%
Sensitivity89.3 dB +2.4, better
CIAREHW172
£63.57 · 132% more, worseFs46 Hz +21%, worse
Qts0.37 −8%
Vas20 L −26%, better
BL7.6 T·m +22%, better
Xmax4.5 mm –
Sensitivity88.4 dB +1.5
CIAREHWB160
£66.11 · 141% more, worseFs43 Hz +13%, worse
Qts0.37 −8%
Vas28 L +4%
BL7.3 T·m +18%, better
Xmax4.5 mm –
Sensitivity89.4 dB +2.5, better
MonacorSPH-175HQ
£69.50 · 154% more, worseFs39 Hz –
Qts0.42 +5%
Vas33 L +22%, worse
BL6.4 T·m +3%
Xmax5.5 mm +22%, better
Sensitivity88 dB +1.1
SB AcousticsSB17NAC35-8
£71.62 · 161% more, worseFs32 Hz −17%, better
Qts0.42 +5%
Vas33 L +22%, worse
BL6.2 T·m –
Xmax5.5 mm +22%, better
Sensitivity85.6 dB −1.3
Scanspeak18W/4434G00
£72.89 · 166% more, worseFs47 Hz +24%, worse
Qts0.35 −13%, better
Vas20.7 L −23%, better
BL6 T·m −3%
Xmax4.3 mm −4%
Sensitivity89.7 dB +2.8, better
Dayton AudioPS180-8
£90.76 · 231% more, worseFs59 Hz +54%, worse
Qts0.33 −18%, better
Vas27.6 L –
BL6.8 T·m +10%, better
Xmax4.6 mm –
Sensitivity93.9 dB +7, better
RS SpeakersMW 174.38 FIBONACCI
£147.48 · 438% more, worseFs46 Hz +20%, worse
Qts0.39 –
Vas18.7 L −31%, better
BL7.0 T·m +13%, better
Xmax4.5 mm –
Sensitivity88.3 dB +1.4
Scanspeak15W/8534T00
£156.76 · 472% more, worseFs32 Hz −16%, better
Qts0.39 –
Vas30 L +11%, worse
BL5.5 T·m −11%, worse
Xmax5 mm +11%, better
Sensitivity85.6 dB −1.3
£381.38 · 1291% more, worse
Fs34 Hz −11%, better
Qts0.42 +5%
Vas30 L +11%, worse
BL6.6 T·m +6%
Xmax5 mm +11%, better
Sensitivity85.8 dB −1.1
Tang BandW6-658I
No current priceFs45 Hz +18%, worse
Qts0.44 +10%
Vas28.3 L +5%
BL6.3 T·m –
Xmax4.1 mm −9%
Sensitivity89.2 dB +2.3, better
Tang BandW6-623I
No current priceFs46 Hz +21%, worse
Qts0.41 –
Vas29.8 L +10%, worse
BL6.7 T·m +8%
Xmax4 mm −11%, worse
Sensitivity90.1 dB +3.2, better
HiViE6.5N
No current priceFs43 Hz +13%, worse
Qts0.40 –
Vas21 L −22%, better
BL7.1 T·m +15%, better
Xmax4.3 mm −6%
Sensitivity87.2 dB –
HiViSS6.5
No current priceFs42 Hz +11%, worse
Qts0.39 –
Vas24.8 L −8%
BL6.4 T·m +3%
Xmax5.8 mm +29%, better
Sensitivity88.1 dB +1.2
HiViF6N
No current priceFs48 Hz +26%, worse
Qts0.43 +7%
Vas19.1 L −29%, better
BL7.3 T·m +18%, better
Xmax4.5 mm –
Sensitivity88.7 dB +1.8
Sica6.5 C 1.5 CP
No current priceFs51 Hz +34%, worse
Qts0.39 –
Vas15.9 L −41%, better
BL7.2 T·m +16%, better
Xmax4.5 mm –
Sensitivity89 dB +2.1, better
WavecorWF168OM01
No current priceFs39 Hz –
Qts0.45 +12%, worse
Vas29.5 L +9%
BL4.8 T·m −23%, worse
Xmax4.2 mm −7%
Sensitivity87.7 dB +0.8
CIARECMI160
No current priceFs70 Hz +84%, worse
Qts0.41 –
Vas7.8 L −71%, better
BL7.2 T·m +16%, better
Xmax4.5 mm –
Sensitivity89.8 dB +2.9, better
Dayton AudioRS150T-8
No current priceFs46 Hz +22%, worse
Qts0.37 −8%
Vas14.4 L −47%, better
BL5.7 T·m −8%
Xmax4 mm −11%, worse
Sensitivity86.9 dB –
WavecorWF152BD11
No current priceFs53 Hz +39%, worse
Qts0.40 –
Vas8.6 L −68%, better
BL7.2 T·m +16%, better
Xmax4.5 mm –
Sensitivity86.9 dB –
HiViSS6.5R
No current priceFs42 Hz +11%, worse
Qts0.39 –
Vas21.6 L −20%, better
BL6.5 T·m +5%
Xmax5.8 mm +29%, better
Sensitivity87.7 dB +0.8
HiViSS6N
No current priceFs44 Hz +16%, worse
Qts0.36 −10%, better
Vas23.9 L −11%, better
BL7.6 T·m +23%, better
Xmax4.3 mm −4%
Sensitivity89.1 dB +2.2, 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 51 rating · 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 | £27.41, the lowest price | In stock | Visit shop at RumoH | |
SoundImports Import VAT and duty may apply | £28.35 | 3.4% above the lowest price | 4 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr