Sica5 D 1 CS
£19.68 · 6% less, betterFs79 Hz +40%, worse
Qts0.52 −4%
Vas5.5 L −26%, better
BL5.7 T·m +8%
Xmax3 mm –
Sensitivity88.7 dB +3.7, better
5.25-inch LF driver · 30 W
Dayton Audio DA135-8 8Ω
8 Ω · 50–15000 Hz
£20.93
Steady13% below the average of 3 shops
Parts Express · 175 in stock · Ships from United States · All 5 offers
- Fs
- 57Hz
- Xmax
- 3mm
- SPL
- 85dB
- Pe
- 30W
- BL
- 5.3T·m
- Vd
- 23cm³
- Qts
- 0.54
- Vas
- 7L
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
15 degrees
Frequency response
240 plotted pointsMedium confidence911 selected pixels of 1,134 - Trace datasheet-response-trace-poc/v1
45 degrees
Frequency response
220 plotted pointsMedium confidence762 selected pixels of 1,688 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,269 selected pixels of 1,269
Dayton Audio DA135-8 is a 5.25-inch 8 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 57 Hz, Qts 0.54, Vas 7.4 L, Xmax 3 mm, sensitivity 85 dB, plus 23 cm³ Vd and 83 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 £20.93.
The published T/S values agree with each other
Thiele/Small
- Fs
- 57Hz
- Qts
- 0.54
- Qes
- 0.68
- Qms
- 2.6
- Vas
- 7.4L
- Re
- 6.4Ω
- Le
- 0.97mH
Motor and cone
- BL
- 5.3T·m
- Sd
- 75cm²
- Mms
- 9g
- Xmax
- 3mm
- Vd †
- 23cm³
Power and response
- Sensitivity †
- 85dB
- Manufacturer sensitivity
- 85dB
- Power
- 30W
- Impedance
- 8Ω
- Range
- 50–15000Hz
- EBP †
- 83 · Sealed or vented
Size and mounting
- Diameter
- 135mm
- Cutout
- 111.5mm
- Depth
- 63.1mm
Other published values
- Cms
- 0.93mm/N
- Power Peak
- 60
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 5.25″
- BL
- 5.3T·m
- Fs
- 57Hz
- Le
- 0.97mH
- Re
- 6.4Ω
- Sd
- 75cm²
- Cms
- 0.93mm/N
- Mms
- 9g
- Qes
- 0.68
- Qms
- 2.6
- Qts
- 0.54
- SPL
- 85dB
- Vas
- 7.4L
- Xmax
- 3mm
- Power
- 30W
- Impedance
- 8Ω
- Power Peak
- 60
- Sensitivity
- 85dB
- Low limit
- 50Hz
- Calculated sensitivity †
- 85dB
- High limit
- 15000Hz
- Manufacturer sensitivity
- 85dB
- Diameter
- 135mm
- Depth
- 63.1mm
- Cutout
- 111.5mm
02
Compare
Same-size drivers, compared with the DA135-8. Clear differences are green when better and red when worse.
This driverDA135-8
Best price
£20.93
Fs
57 Hz
Qts
0.54
Vas
7.4 L
BL
5.3 T·m
Xmax
3 mm
Sensitivity
85 dB
Power
30 W
PeerlessGBS-135F25AL02-04
£22.44 · 7% more, worseFs64 Hz +13%, worse
Qts0.59 +9%
Vas5.3 L −28%, better
BL4.9 T·m −7%
Xmax5.4 mm +79%, better
Sensitivity85.1 dB –
CIAREHW129
£23.44 · 12% more, worseFs75 Hz +33%, worse
Qts0.55 –
Vas6.1 L −18%, better
BL5.2 T·m –
Xmax3.9 mm +30%, better
Sensitivity87.3 dB +2.3, better
PeerlessSDS-P830656
£25.08 · 20% more, worseFs65 Hz +15%, worse
Qts0.62 +15%, worse
Vas6.6 L −11%, better
BL5.5 T·m +4%
Xmax5.5 mm +82%, better
Sensitivity85.8 dB +0.8
PeerlessHDS-P830860
£26.17 · 25% more, worseFs72 Hz +27%, worse
Qts0.54 –
Vas6.1 L −17%, better
BL5.7 T·m +8%
Xmax5.5 mm +83%, better
Sensitivity87 dB +2, better
PeerlessSLS-135F32CP01-04
£26.37 · 26% more, worseFs55 Hz –
Qts0.54 –
Vas5.7 L −24%, better
BL5.2 T·m –
Xmax7 mm +133%, better
Sensitivity84 dB −1
PeerlessHDS-P830991
£28.05 · 34% more, worseFs76 Hz +35%, worse
Qts0.55 –
Vas5.1 L −31%, better
BL6.3 T·m +19%, better
Xmax6.5 mm +118%, better
Sensitivity87.1 dB +2.1, better
CelestionTF0510
£29.30 · 40% more, worseFs128 Hz +127%, worse
Qts0.58 +7%
Vas7.4 L –
BL6.8 T·m +28%, better
Xmax2.4 mm −20%, worse
Sensitivity95.1 dB +10.1, better
Dayton AudioRS125T-8
£47.22 · 126% more, worseFs76 Hz +35%, worse
Qts0.50 −7%
Vas3.6 L −52%, better
BL5.0 T·m −5%
Xmax2.8 mm −7%
Sensitivity86.1 dB +1.1
Scanspeak12W/8524G00
£54.43 · 160% more, worseFs52 Hz −8%
Qts0.32 −41%, better
Vas8.2 L +11%, worse
BL5.4 T·m –
Xmax3 mm –
Sensitivity87.2 dB +2.2, better
WavecorWF146WA02
£57.60 · 175% more, worseFs58 Hz –
Qts0.51 −6%
Vas10 L +35%, worse
BL6.4 T·m +20%, better
Xmax3 mm –
Sensitivity87.6 dB +2.6, better
EminenceALPHA-6A
£59.00 · 182% more, worseFs103 Hz +82%, worse
Qts0.54 –
Vas5.8 L −22%, better
BL8 T·m +50%, better
Xmax3.5 mm +17%, better
Sensitivity92.3 dB +7.3, better
FaitalPRO6PR110
£62.80 · 200% more, worseFs100 Hz +77%, worse
Qts0.53 –
Vas5.6 L −24%, better
BL8.5 T·m +60%, better
Xmax2.8 mm −8%
Sensitivity91.7 dB +6.7, better
Sica5 N 1.5 PL
£65.31 · 212% more, worseFs111 Hz +96%, worse
Qts0.56 +4%
Vas3 L −59%, better
BL6.2 T·m +17%, better
Xmax3 mm –
Sensitivity89.5 dB +4.5, better
WavecorWF132TU02
£78.55 · 275% more, worseFs62 Hz +10%
Qts0.44 −19%, better
Vas9 L +22%, worse
BL5.2 T·m –
Xmax3 mm –
Sensitivity88.7 dB +3.7, better
WavecorWF118WA06
£82.89 · 296% more, worseFs66 Hz +17%, worse
Qts0.55 –
Vas3.5 L −53%, better
BL5.6 T·m +5%
Xmax3 mm –
Sensitivity84.3 dB −0.7
WavecorWF120BD14
£133.13 · 536% more, worseFs58 Hz –
Qts0.46 −15%, better
Vas3.9 L −47%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity83.8 dB −1.2
Tang BandW6-2144
£141.51 · 576% more, worseFs45 Hz −20%, better
Qts0.45 −17%, better
Vas34.6 L +368%, worse
BL5.5 T·m –
Xmax3 mm –
Sensitivity89.1 dB +4.1, better
£276.27 · 1220% more, worse
Fs67 Hz +19%, worse
Qts0.40 −26%, better
Vas6 L −19%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity87.4 dB +2.4, better
AccutonC90-6-724
£527.46 · 2420% more, worseFs83 Hz +46%, worse
Qts0.60 +11%, worse
Vas5.1 L −31%, better
BL6.0 T·m +12%, better
Xmax3 mm –
Sensitivity88.4 dB +3.4, better
Dayton AudioE150MR-4
No current priceFs75 Hz +33%, worse
Qts0.52 −4%
Vas7.4 L –
BL4.9 T·m −8%
Xmax2.7 mm −10%
Sensitivity89.1 dB +4.1, better
Dayton AudioE150MR-8
No current priceFs74 Hz +31%, worse
Qts0.58 +7%
Vas8 L +8%
BL6.1 T·m +15%, better
Xmax2.7 mm −10%
Sensitivity88.9 dB +3.9, better
Dayton AudioCFC120-8
No current priceFs60 Hz +6%
Qts0.56 +4%
Vas4.6 L −38%, better
BL5.1 T·m −4%
Xmax2.5 mm −17%, worse
Sensitivity83.6 dB −1.4
VisatonAL 130 M
No current priceFs57 Hz –
Qts0.46 −15%, better
Vas9.1 L +23%, worse
BL5.6 T·m +5%
Xmax3 mm –
Sensitivity87.1 dB +2.1, better
PRV Audio6MB400-4
No current priceFs125 Hz +121%, worse
Qts0.52 −4%
Vas5.3 L −28%, better
BL6.6 T·m +24%, better
Xmax3 mm –
Sensitivity94.7 dB +9.7, better
WavecorWF120BD13
No current priceFs59 Hz +4%
Qts0.47 −13%, better
Vas3.8 L −49%, better
BL5.3 T·m –
Xmax3 mm –
Sensitivity84 dB −1
WavecorWF146OM02
No current priceFs50 Hz −12%, better
Qts0.51 −6%
Vas13.6 L +84%, worse
BL5.4 T·m –
Xmax3.3 mm +10%
Sensitivity86.9 dB +1.9
Tang BandW5-1611SA
No current priceFs60 Hz +6%
Qts0.44 −19%, better
Vas13.0 L +76%, worse
BL5.2 T·m –
Xmax3 mm –
Sensitivity88.7 dB +3.7, better
LavoceWSF051.02
No current priceFs106 Hz +88%, worse
Qts0.60 +11%, worse
Vas3.3 L −56%, better
BL6.4 T·m +20%, better
Xmax3.1 mm +3%
Sensitivity89.7 dB +4.7, better
EminenceALPHA 5-8
No current priceFs87 Hz +54%, worse
Qts0.54 –
Vas6.1 L −17%, better
BL6.2 T·m +17%, better
Xmax5.9 mm +97%, better
Sensitivity90.6 dB +5.6, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.4 out of 529 ratings · Checked 25 Oct 2026Read reviews on Parts Express
- SoundImports5.0 out of 52 ratings · Checked 25 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 | £20.93, the lowest price | 175 in stock | Visit shop at Parts Express | |
Audiophonics Import VAT and duty may apply | £25.04 | 20% above the lowest price | In stock | Visit shop at Audiophonics |
RumoH Import VAT and duty may apply | £26.33 | 26% above the lowest price | In stock | Visit shop at RumoH |
SoundImports Import VAT and duty may apply | £30.52 | 46% above the lowest price | Back order | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr