PeerlessSDS-100F25CP09-04
£13.05 · 8% less, betterFs80 Hz +21%, worse
Qts0.53 +10%, worse
Vas2.0 L −40%, better
BL4.7 T·m −10%
Xmax5.0 mm –
Sensitivity84.4 dB –
4-inch LF driver · SDS series · 30 W
Peerless SDS-P830855 8Ω
8 Ω
£14.18
SteadyParts Express · 199 in stock · Ships from United States · All 3 offers
- Fs
- 66Hz
- Xmax
- 5.0mm
- SPL
- 84dB
- Pe
- 30W
- BL
- 5.2T·m
- Vd
- 25cm³
- Qts
- 0.48
- Vas
- 3L
Peerless SDS-P830855 is a 4-inch 8 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 66 Hz, Qts 0.48, Vas 3.3 L, Xmax 5.0 mm, sensitivity 84.4 dB, plus 25 cm³ Vd and 122 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 £14.18.
The published T/S values agree with each other
Thiele/Small
- Fs
- 66Hz
- Qts
- 0.48
- Qes
- 0.54
- Qms
- 4.6
- Vas
- 3.3L
- Re
- 5.6Ω
- Le
- 0.34mH
Motor and cone
- BL
- 5.2T·m
- Sd
- 50cm²
- Mms
- 6g
- Xmax
- 5.0mm
- Vd †
- 25cm³
Power and response
- Sensitivity †
- 84.4dB
- Manufacturer sensitivity
- 83.1dB
- Power
- 30W
- Impedance
- 8Ω
- EBP †
- 122 · Leans vented
Size and mounting
- Weight
- 0.74kg
Other published values
- Cms
- 0.91mm/N
Sensitivity shows 84.4 dB, calculated from the T/S values. Peerless publishes 83.1 dB, 1.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Peerless lists
LF · Primary · 4.015748031496063″
- BL
- 5.2T·m
- Fs
- 66Hz
- Le
- 0.34mH
- Re
- 5.6Ω
- Sd
- 50cm²
- Cms
- 0.91mm/N
- Mms
- 6g
- Qes
- 0.54
- Qms
- 4.6
- Qts
- 0.48
- SPL
- 84.4dB
- Vas
- 3.3L
- Xmax
- 5.0mm
- Power
- 30W
- Impedance
- 8Ω
- Sensitivity
- 83.1dB
- Calculated sensitivity †
- 84.4dB
- Manufacturer sensitivity
- 83.1dB
- Weight
- 0.74kg
02
Compare
Same-size drivers, compared with the SDS-P830855. Clear differences are green when better and red when worse.
This driverSDS-P830855
Best price
£14.18
Fs
66 Hz
Qts
0.48
Vas
3.3 L
BL
5.2 T·m
Xmax
5.0 mm
Sensitivity
84.4 dB
Power
30 W
Dayton AudioND91-8
£21.16 · 49% more, worseFs71 Hz +7%
Qts0.47 –
Vas1.5 L −53%, better
BL5.6 T·m +7%
Xmax5.1 mm –
Sensitivity82.1 dB −2.3, worse
SB AcousticsSB12PFC25-8
£22.25 · 57% more, worseFs64 Hz −3%
Qts0.56 +17%, worse
Vas4.3 L +32%, worse
BL4.5 T·m −14%, worse
Xmax5 mm –
Sensitivity84.4 dB –
Dayton AudioSIG120-4
£24.95 · 76% more, worseFs75 Hz +13%, worse
Qts0.43 −10%, better
Vas3.1 L −5%
BL5 T·m −5%
Xmax4 mm −20%, worse
Sensitivity86.4 dB +2, better
Dayton AudioDSA115-8
£30.44 · 115% more, worseFs63 Hz −4%
Qts0.42 −13%, better
Vas4.0 L +21%, worse
BL5.4 T·m +4%
Xmax4.1 mm −18%, worse
Sensitivity84.8 dB –
Dayton AudioRS125P-8
£37.81 · 167% more, worseFs70 Hz +6%
Qts0.44 −8%
Vas4.0 L +22%, worse
BL5.1 T·m −3%
Xmax4 mm −20%, worse
Sensitivity86.1 dB +1.7
SB AcousticsSB12NRXF25-4
£45.28 · 219% more, worseFs61 Hz −8%
Qts0.48 –
Vas4.1 L +26%, worse
BL3.6 T·m −31%, worse
Xmax5 mm –
Sensitivity84.5 dB –
SB AcousticsSB12NRXF25-8
£45.28 · 219% more, worseFs63 Hz −5%
Qts0.42 −13%, better
Vas4.2 L +29%, worse
BL5.5 T·m +5%
Xmax5 mm –
Sensitivity85.6 dB +1.2
Dayton AudioRS125T-8
£47.80 · 237% more, worseFs76 Hz +15%, worse
Qts0.50 +4%
Vas3.6 L +9%
BL5.0 T·m −4%
Xmax2.8 mm −44%, worse
Sensitivity86.1 dB +1.7
WavecorWF118WA05
£83.91 · 492% more, worseFs65 Hz –
Qts0.46 −4%
Vas3.5 L +7%
BL4.3 T·m −18%, worse
Xmax3 mm −40%, worse
Sensitivity85 dB +0.6
WavecorSW118WA02
£85.78 · 505% more, worseFs60 Hz −9%
Qts0.47 –
Vas3.3 L –
BL5.9 T·m +13%, better
Xmax4 mm −20%, worse
Sensitivity83.6 dB −0.8
WavecorWF120BD08
£122.14 · 761% more, worseFs63 Hz −5%
Qts0.45 −6%
Vas4.3 L +30%, worse
BL5.5 T·m +5%
Xmax4 mm −20%, worse
Sensitivity85.4 dB +1
WavecorWF120BD03
£122.14 · 761% more, worseFs70 Hz +6%
Qts0.42 −13%, better
Vas3.3 L –
BL4.5 T·m −14%, worse
Xmax4 mm −20%, worse
Sensitivity85.9 dB +1.5
WavecorWF120BD10
£126.80 · 794% more, worseFs50 Hz −24%, better
Qts0.47 –
Vas6.2 L +90%, worse
BL5.2 T·m –
Xmax4 mm −20%, worse
Sensitivity83.9 dB −0.5
WavecorWF120BD14
£134.77 · 850% more, worseFs58 Hz −13%, better
Qts0.46 −4%
Vas3.9 L +20%, worse
BL5.3 T·m –
Xmax3 mm −40%, worse
Sensitivity83.8 dB −0.6
FaitalPRO5HX140
£134.77 · 850% more, worseFs100 Hz +52%, worse
Qts0.41 −15%, better
Vas3.4 L +4%
BL8 T·m +53%, better
Xmax5.1 mm –
Sensitivity90.8 dB +6.4, better
£169.48 · 1095% more, worse
Fs49 Hz −26%, better
Qts0.45 −6%
Vas12 L +268%, worse
BL4.6 T·m −12%, worse
Xmax5 mm –
Sensitivity86 dB +1.6
WavecorWF120BD07
No current priceFs72 Hz +8%
Qts0.51 +6%
Vas3.3 L –
BL5.5 T·m +5%
Xmax4 mm −20%, worse
Sensitivity85.3 dB +0.9
WavecorWF120BD13
No current priceFs59 Hz −11%, better
Qts0.47 –
Vas3.8 L +17%, worse
BL5.3 T·m –
Xmax3 mm −40%, worse
Sensitivity84 dB –
CelestionTF0512HE
No current priceFs85 Hz +28%, worse
Qts0.54 +12%, worse
Vas3.5 L +6%
BL6.7 T·m +28%, better
Xmax4.8 mm −5%
Sensitivity87.7 dB +3.3, better
No photo
PHL Audio930ND
No current priceFs129 Hz +95%, worse
Qts0.48 –
Vas2.6 L −20%, better
BL8.8 T·m +68%, better
Xmax4.5 mm −10%, worse
Sensitivity92.1 dB +7.7, better
BMS5S117
No current priceFs95 Hz +44%, worse
Qts0.42 −13%, better
Vas3.3 L –
BL11.3 T·m +116%, better
Xmax5 mm –
Sensitivity89.6 dB +5.2, better
VisatonAL 130 M
No current priceFs57 Hz −14%, better
Qts0.46 −4%
Vas9.1 L +179%, worse
BL5.6 T·m +7%
Xmax5.5 mm +10%
Sensitivity87.1 dB +2.7, better
VisatonAL 130 M - 8 OHM
No current priceFs57 Hz −14%, better
Qts0.46 −4%
Vas9.1 L +179%, worse
BL5.6 T·m +7%
Xmax5.5 mm +10%
Sensitivity87.1 dB +2.7, better
WavecorWF120BD09
No current priceFs54 Hz −18%, better
Qts0.50 +4%
Vas5.3 L +63%, worse
BL5.2 T·m –
Xmax4 mm −20%, worse
Sensitivity83.9 dB −0.5
WavecorMR120BD04
No current priceFs72 Hz +9%
Qts0.55 +15%, worse
Vas3.2 L –
BL5.2 T·m –
Xmax1.5 mm −70%, worse
Sensitivity85.1 dB +0.7
BMS5N155
No current priceFs101 Hz +52%, worse
Qts0.44 −8%
Vas2.6 L −19%, better
BL12 T·m +129%, better
Xmax5 mm –
Sensitivity89.4 dB +5, better
Tang BandW4-2356
No current priceFs70 Hz +6%
Qts0.45 −6%
Vas4.0 L +22%, worse
BL4.9 T·m −6%
Xmax3 mm −40%, worse
Sensitivity85.7 dB +1.3
No photo
PHL Audio930
No current priceFs130 Hz +97%, worse
Qts0.50 +4%
Vas2.5 L −23%, better
BL8.7 T·m +66%, better
Xmax4.5 mm −10%, worse
Sensitivity91.9 dB +7.5, better
WavecorMR120BD03
No current priceFs73 Hz +11%, worse
Qts0.56 +17%, worse
Vas3.1 L −5%
BL5.2 T·m –
Xmax1.5 mm −70%, worse
Sensitivity85.1 dB +0.7
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports4.6 out of 510 ratings · Checked 12 Oct 2026Read reviews on SoundImports
- Parts Express4.8 out of 59 ratings · Checked 12 Oct 2026Read reviews on Parts Express
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 | £14.18, the lowest price | 199 in stock | Visit shop at Parts Express | |
SoundImports Import VAT and duty may apply | £25.39 | 79% above the lowest price | 413 in stock | Visit shop at SoundImports |
Lautsprechershop Import VAT and duty may apply | £33.82 | 138% above the lowest price | Out of stock | Visit shop at Lautsprechershop |
Best price over time
Tracked since 1 Apr