GRS10SMP-4
£38.89 · 65% less, betterFs28 Hz −5%
Qts0.51 +9%
Vas86 L −11%, better
BL8.2 T·m −20%, worse
Xmax5 mm −24%, worse
Sensitivity86.8 dB −1.4
10-inch LF driver · 100 W
Dayton Audio RS270-8 8Ω
8 Ω · 27–2040 Hz
£112.19
Steady17% below the average of 4 shops
Parts Express · 206 in stock · Ships from United States · All 5 offers
- Fs
- 30Hz
- Xmax
- 6.6mm
- SPL
- 88dB
- Pe
- 100W
- BL
- 10.3T·m
- Vd
- 229cm³
- Qts
- 0.47
- Vas
- 97L
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 4 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
15 degrees
Frequency response
240 plotted pointsMedium confidence1,483 selected pixels of 2,436 - Trace datasheet-response-trace-poc/v1
45 degrees
Frequency response
240 plotted pointsMedium confidence666 selected pixels of 1,851 - Trace datasheet-response-trace-poc/v1
on-axis
Frequency response
240 plotted pointsMedium confidence1,457 selected pixels of 1,457 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,204 selected pixels of 1,204
Dayton Audio RS270-8 is a 10-inch 8 ohm LF driver rated at 100 W RMS. The validated T/S data includes Fs 30 Hz, Qts 0.47, Vas 96.5 L, Xmax 6.6 mm, sensitivity 88.2 dB, plus 229 cm³ Vd and 49 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 £112.19.
The published T/S values agree with each other
Thiele/Small
- Fs
- 30Hz
- Qts
- 0.47
- Qes
- 0.61
- Qms
- 2.1
- Vas
- 96.5L
- Re
- 6.8Ω
- Le
- 0.93mH
Motor and cone
- BL
- 10.3T·m
- Sd
- 346cm²
- Mms
- 51g
- Xmax
- 6.6mm
- Vd †
- 229cm³
Power and response
- Sensitivity †
- 88.2dB
- Manufacturer sensitivity
- 88.7dB
- Power
- 100W
- Impedance
- 8Ω
- Range
- 27–2040Hz
- EBP †
- 49 · Leans sealed
Size and mounting
- Diameter
- 272mm
- Cutout
- 236mm
- Depth
- 113mm
- Weight
- 4.5kg
Other published values
- Cms
- 0.57mm/N
- Power Peak
- 200
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 10″
- BL
- 10.3T·m
- Fs
- 30Hz
- Le
- 0.93mH
- Re
- 6.8Ω
- Sd
- 346cm²
- Cms
- 0.57mm/N
- Mms
- 51g
- Qes
- 0.61
- Qms
- 2.1
- Qts
- 0.47
- SPL
- 88.2dB
- Vas
- 96.5L
- Xmax
- 6.6mm
- Power
- 100W
- Impedance
- 8Ω
- Power Peak
- 200
- Sensitivity
- 88.7dB
- Low limit
- 27Hz
- Calculated sensitivity †
- 88.2dB
- High limit
- 2040Hz
- Manufacturer sensitivity
- 88.7dB
- Weight
- 4.5kg
- Diameter
- 272mm
- Depth
- 113mm
- Cutout
- 236mm
02
Compare
Same-size drivers, compared with the RS270-8. Clear differences are green when better and red when worse.
This driverRS270-8
Best price
£112.19
Fs
30 Hz
Qts
0.47
Vas
96.5 L
BL
10.3 T·m
Xmax
6.6 mm
Sensitivity
88.2 dB
Power
100 W
SB AcousticsSB26SFCL38-4
£57.69 · 49% less, betterFs27 Hz −7%
Qts0.43 −9%
Vas104 L +8%
BL8.2 T·m −20%, worse
Xmax7.9 mm +20%, better
Sensitivity88.6 dB –
SB AcousticsSB26SFCL38-8
£58.53 · 48% less, betterFs28 Hz −7%
Qts0.53 +13%, worse
Vas107 L +11%, worse
BL9.6 T·m −7%
Xmax8.2 mm +24%, better
Sensitivity87.7 dB −0.5
PRV Audio10MR650A
£63.52 · 43% less, betterFs65 Hz +119%, worse
Qts0.47 –
Vas41.9 L −57%, better
BL12.3 T·m +19%, better
Xmax5.7 mm −13%, worse
Sensitivity95.8 dB +7.6, better
CIAREHW250
£64.47 · 43% less, betterFs23 Hz −22%, better
Qts0.48 –
Vas275 L +185%, worse
BL6.5 T·m −36%, worse
Xmax6.5 mm –
Sensitivity89.6 dB +1.4
FaitalPRO10FE400
£66.15 · 41% less, betterFs60 Hz +103%, worse
Qts0.47 –
Vas35.3 L −63%, better
BL11.5 T·m +12%, better
Xmax5.4 mm −18%, worse
Sensitivity93.7 dB +5.5, better
FaitalPRO10FE300
£67.00 · 40% less, betterFs50 Hz +69%, worse
Qts0.52 +11%, worse
Vas50.5 L −48%, better
BL11.3 T·m +10%
Xmax5.5 mm −16%, worse
Sensitivity92.7 dB +4.5, better
Dayton AudioDS270-8
£71.05 · 37% less, betterFs32 Hz +7%
Qts0.44 −6%
Vas87.7 L −9%
BL10.1 T·m –
Xmax5.5 mm −17%, worse
Sensitivity89.1 dB +0.9
EminenceBETA-10A
£82.50 · 26% less, betterFs53 Hz +79%, worse
Qts0.49 +4%
Vas60.1 L −38%, better
BL9.6 T·m −7%
Xmax3 mm −55%, worse
Sensitivity94.4 dB +6.2, better
Beyma10BR60
£86.23 · 23% less, betterFs29 Hz –
Qts0.39 −17%, better
Vas142 L +47%, worse
BL10.9 T·m +6%
Xmax6.5 mm –
Sensitivity91 dB +2.8, better
Dayton AudioDSA270-8
£89.75 · 20% less, betterFs30 Hz –
Qts0.39 −17%, better
Vas88.1 L −9%
BL11.2 T·m +9%
Xmax5.5 mm −17%, worse
Sensitivity88.9 dB +0.7
EminenceLEGEND BP102
£91.00 · 19% less, betterFs35 Hz +18%, worse
Qts0.43 −9%
Vas91.2 L −5%
BL10 T·m –
Xmax6.2 mm −6%
Sensitivity91.2 dB +3, better
Eighteen Sound10W650
£143.18 · 28% more, worseFs67 Hz +126%, worse
Qts0.48 –
Vas26 L −73%, better
BL12.4 T·m +20%, better
Xmax5.7 mm −14%, worse
Sensitivity93.9 dB +5.7, better
SB AcousticsSW26DAC76-4
£217.70 · 94% more, worseFs22 Hz −26%, better
Qts0.46 –
Vas54 L −44%, better
BL10.8 T·m +5%
Xmax12 mm +82%, better
Sensitivity82.5 dB −5.7, worse
WavecorSW280WA03
£241.98 · 116% more, worseFs35 Hz +17%, worse
Qts0.46 –
Vas29.7 L −69%, better
BL12.5 T·m +21%, better
Xmax6 mm −9%
Sensitivity86.1 dB −2.1, worse
SB AcousticsSW26DBAC76-4
£251.15 · 124% more, worseFs22 Hz −26%, better
Qts0.46 –
Vas54 L −44%, better
BL10.8 T·m +5%
Xmax12 mm +82%, better
Sensitivity82.5 dB −5.7, worse
Sica10 SR 2 CP
No current priceFs33 Hz +11%, worse
Qts0.49 +4%
Vas73 L −24%, better
BL10.8 T·m +5%
Xmax7 mm +6%
Sensitivity88.7 dB +0.5
EminenceFS10.20A8
No current priceFs56 Hz +89%, worse
Qts0.48 –
Vas45 L −53%, better
BL10.4 T·m –
Xmax5.5 mm −17%, worse
Sensitivity93.7 dB +5.5, better
Dayton AudioSD270A-88
No current priceFs26 Hz −11%, better
Qts0.43 −9%
Vas107.5 L +11%, worse
BL7.8 T·m −24%, worse
Xmax6 mm −9%
Sensitivity87.9 dB –
KartesianSUB265_VKI-S
No current priceFs22 Hz −26%, better
Qts0.46 –
Vas103.4 L +7%
BL9.1 T·m −12%, worse
Xmax16 mm +142%, better
Sensitivity85.5 dB −2.7, worse
Acoustic EleganceIB10AU-4
No current priceFs25 Hz −16%, better
Qts0.48 –
Vas68 L −30%, better
BL8.8 T·m −15%, worse
Xmax18 mm +173%, better
Sensitivity84.8 dB −3.4, worse
Acoustic EleganceIB10AU-8
No current priceFs25 Hz −16%, better
Qts0.48 –
Vas68 L −30%, better
BL12.4 T·m +21%, better
Xmax18 mm +173%, better
Sensitivity84.8 dB −3.4, worse
WavecorWF275BD02
No current priceFs28 Hz −5%
Qts0.45 −4%
Vas81.5 L −16%, better
BL11.8 T·m +15%, better
Xmax9 mm +36%, better
Sensitivity87.8 dB –
HiViSS10
No current priceFs28 Hz −7%
Qts0.36 −23%, better
Vas105.7 L +10%
BL10.4 T·m –
Xmax7.3 mm +11%, better
Sensitivity89.7 dB +1.5
WavecorSW270WA01_SUBWOOFER
No current priceFs28 Hz −5%
Qts0.49 +4%
Vas51 L −47%, better
BL9.7 T·m −6%
Xmax11 mm +67%, better
Sensitivity85.3 dB −2.9, worse
MonacorSP-252E
No current priceFs42 Hz +42%, worse
Qts0.50 +6%
Vas57 L −41%, better
BL8.5 T·m −17%, worse
Xmax4 mm −39%, worse
Sensitivity90.5 dB +2.3, better
MonacorSP-252C
No current priceFs35 Hz +18%, worse
Qts0.41 −13%, better
Vas96 L –
BL8.1 T·m −22%, worse
Xmax5 mm −24%, worse
Sensitivity91.5 dB +3.3, better
Dayton AudioRSS265HF-4
No current priceFs26 Hz −14%, better
Qts0.45 −4%
Vas54 L −44%, better
BL11.4 T·m +11%, better
Xmax12.3 mm +86%, better
Sensitivity84.4 dB −3.8, worse
HiViD10G
No current priceFs26 Hz −12%, better
Qts0.46 –
Vas117.3 L +22%, worse
BL13.2 T·m +28%, better
Xmax8.3 mm +26%, better
Sensitivity88.2 dB –
CIARECME250
No current priceFs48 Hz +62%, worse
Qts0.48 –
Vas74 L −23%, better
BL7.5 T·m −27%, worse
Xmax4.5 mm −32%, worse
Sensitivity93.9 dB +5.7, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.6 out of 512 ratings · Checked 26 Oct 2026Read reviews on Parts Express
- SoundImports5.0 out of 51 rating · Checked 26 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 |
|---|---|---|---|---|
Parts Express Import VAT and duty may apply | £112.19, the lowest price | 206 in stock | Visit shop at Parts Express | |
Audiophonics Import VAT and duty may apply | £133.38 | 19% above the lowest price | In stock | Visit shop at Audiophonics |
RumoH Import VAT and duty may apply | £141.51 | 26% above the lowest price | Stock not listed | Visit shop at RumoH |
SoundImports Import VAT and duty may apply | £155.28 | 38% above the lowest price | 10 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 12 AugParts Express£100.97 → £112.19Up 11% from £100.97