REDCATT30FF
£9.00 · 28% less, betterFs119 Hz +23%, worse
Qts0.78 −4%
Vas0.8 L −19%, better
BL3.3 T·m −13%, worse
Xmax19 mm +604%, better
Sensitivity83.5 dB +1.4
3-inch LF driver · 15 W
Dayton Audio CE81PF-8 8Ω
8 Ω · 80–18000 Hz
£12.52
SteadySoundImports · 6 in stock · Ships from Netherlands · All 2 offers
- Fs
- 97Hz
- Xmax
- 2.7mm
- SPL
- 82dB
- Pe
- 15W
- BL
- 3.7T·m
- Vd
- 8cm³
- Qts
- 0.81
- Vas
- 1L
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
202 plotted pointsMedium confidence1,429 selected pixels of 1,940 - Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
224 plotted pointsMedium confidence974 selected pixels of 1,643 - Trace datasheet-response-trace-poc/v1
on-axis
Frequency response
240 plotted pointsMedium confidence3,824 selected pixels of 3,824
Dayton Audio CE81PF-8 is a 3-inch 8 ohm LF driver rated at 15 W RMS. The validated T/S data includes Fs 97 Hz, Qts 0.81, Vas 1.0 L, Xmax 2.7 mm, sensitivity 82.1 dB, plus 8 cm³ Vd and 108 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 £12.52.
The published T/S values agree with each other
Thiele/Small
- Fs
- 97Hz
- Qts
- 0.81
- Qes
- 0.90
- Qms
- 7.9
- Vas
- 1.0L
- Re
- 6.7Ω
- Le
- 0.14mH
Motor and cone
- BL
- 3.7T·m
- Sd
- 28cm²
- Mms
- 3g
- Xmax
- 2.7mm
- Vd †
- 8cm³
Power and response
- Sensitivity †
- 82.1dB
- Manufacturer sensitivity
- 84dB
- Power
- 15W
- Impedance
- 8Ω
- Range
- 80–18000Hz
- EBP †
- 108 · Leans vented
Size and mounting
- Diameter
- 81mm
- Cutout
- 70mm
- Depth
- 50.5mm
- Weight
- 0.54kg
Other published values
- Cms
- 0.89mm/N
- Power Peak
- 30
Sensitivity shows 82.1 dB, calculated from the T/S values. Dayton Audio publishes 84.0 dB, 1.9 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 3″
- BL
- 3.7T·m
- Fs
- 97Hz
- Le
- 0.14mH
- Re
- 6.7Ω
- Sd
- 28cm²
- Cms
- 0.89mm/N
- Mms
- 3g
- Qes
- 0.90
- Qms
- 7.9
- Qts
- 0.81
- SPL
- 82.1dB
- Vas
- 1.0L
- Xmax
- 2.7mm
- Power
- 15W
- Impedance
- 8Ω
- Power Peak
- 30
- Sensitivity
- 84dB
- Low limit
- 80Hz
- Calculated sensitivity †
- 82.1dB
- High limit
- 18000Hz
- Manufacturer sensitivity
- 84dB
- Weight
- 0.54kg
- Diameter
- 81mm
- Depth
- 50.5mm
- Cutout
- 70mm
02
Compare
Same-size drivers, compared with the CE81PF-8. Clear differences are green when better and red when worse.
This driverCE81PF-8
Best price
£12.52
Fs
97 Hz
Qts
0.81
Vas
1.0 L
BL
3.7 T·m
Xmax
2.7 mm
Sensitivity
82.1 dB
Power
15 W
Dayton AudioPCS115-4
£9.71 · 22% less, betterFs88 Hz −9%
Qts0.79 –
Vas1.8 L +77%, worse
BL3.6 T·m −3%
Xmax2.8 mm –
Sensitivity82.6 dB +0.5
LavoceFSF030.70
£10.04 · 20% less, betterFs123 Hz +27%, worse
Qts0.77 −5%
Vas1.2 L +17%, worse
BL3.5 T·m −7%
Xmax2.1 mm −22%, worse
Sensitivity85.9 dB +3.8, better
PeerlessPLS-P830986
£14.59 · 17% more, worseFs110 Hz +13%, worse
Qts0.80 –
Vas0.8 L −16%, better
BL3.5 T·m −7%
Xmax3.4 mm +25%, better
Sensitivity82.7 dB +0.6
PRV Audio4MR60-4
£14.89 · 19% more, worseFs90 Hz −7%
Qts0.68 −16%, better
Vas3.3 L +227%, worse
BL3.4 T·m −8%
Xmax2.9 mm +6%
Sensitivity87 dB +4.9, better
REDCATT31NFR
£15.45 · 23% more, worseFs115 Hz +19%, worse
Qts0.88 +9%
Vas0.85 L −15%, better
BL3.5 T·m −6%
Xmax1.7 mm −37%, worse
Sensitivity83.4 dB +1.3
FaitalPRO4FE35
£16.58 · 32% more, worseFs100 Hz +3%
Qts0.83 –
Vas2.4 L +140%, worse
BL3.9 T·m +5%
Xmax2.7 mm –
Sensitivity85.7 dB +3.6, better
FaitalPRO3FE26
£18.83 · 50% more, worseFs150 Hz +55%, worse
Qts0.79 –
Vas0.9 L −10%
BL3.3 T·m −11%, worse
Xmax2 mm −26%, worse
Sensitivity86.4 dB +4.3, better
REDCATT25NFR
£19.63 · 57% more, worseFs123 Hz +27%, worse
Qts0.71 −12%, better
Vas0.46 L −54%, better
BL4 T·m +8%
Xmax2.6 mm –
Sensitivity82.3 dB –
EminenceALPHA 3-32
£20.53 · 64% more, worseFs117 Hz +21%, worse
Qts0.74 −9%
Vas1.0 L –
BL6.5 T·m +74%, better
Xmax2.6 mm −4%
Sensitivity84.7 dB +2.6, better
Dayton AudioPS95-8
£22.10 · 77% more, worseFs120 Hz +24%, worse
Qts0.72 −11%, better
Vas0.9 L −6%
BL3.8 T·m –
Xmax2.5 mm −7%
Sensitivity85.1 dB +3, better
LavoceFSN030.71
£24.69 · 97% more, worseFs134 Hz +38%, worse
Qts0.67 −17%, better
Vas1.0 L +4%
BL3.8 T·m –
Xmax2.1 mm −22%, worse
Sensitivity87.3 dB +5.2, better
CelestionAF3010
£25.11 · 101% more, worseFs129 Hz +33%, worse
Qts0.74 −9%
Vas0.7 L −33%, better
BL6.0 T·m +61%, better
Xmax2.8 mm –
Sensitivity84.3 dB +2.2, better
CIAREHM100
£27.63 · 121% more, worseFs160 Hz +65%, worse
Qts0.70 −14%, better
Vas1.1 L +10%, worse
BL5.1 T·m +37%, better
Xmax2.2 mm −19%, worse
Sensitivity88.7 dB +6.6, better
CelestionAF4010
£30.13 · 141% more, worseFs105 Hz +8%
Qts0.81 –
Vas2.1 L +113%, worse
BL6.0 T·m +60%, better
Xmax2.8 mm –
Sensitivity86.1 dB +4, better
WavecorFR070WA04
£33.41 · 167% more, worseFs114 Hz +18%, worse
Qts0.87 +7%
Vas0.6 L −39%, better
BL2.9 T·m −22%, worse
Xmax2 mm −26%, worse
Sensitivity81.9 dB –
WavecorWF090WA01
£41.14 · 229% more, worseFs115 Hz +19%, worse
Qts0.81 –
Vas1.0 L –
BL2.9 T·m −22%, worse
Xmax2.8 mm –
Sensitivity84.3 dB +2.2, better
WavecorWF090WA02
£57.10 · 356% more, worseFs109 Hz +12%, worse
Qts0.76 −6%
Vas1.1 L +14%, worse
BL3.5 T·m −6%
Xmax2.8 mm –
Sensitivity84.3 dB +2.2, better
WavecorFR090WA02
£61.12 · 388% more, worseFs109 Hz +12%, worse
Qts0.85 +5%
Vas1.1 L +14%, worse
BL3.4 T·m −9%
Xmax2.3 mm −17%, worse
Sensitivity83.7 dB +1.6
WavecorFR090WA01
£61.12 · 388% more, worseFs113 Hz +16%, worse
Qts0.88 +9%
Vas1.1 L +7%
BL2.8 T·m −26%, worse
Xmax2.3 mm −17%, worse
Sensitivity83.8 dB +1.7
WavecorFR084WA01
£61.71 · 393% more, worseFs113 Hz +16%, worse
Qts0.82 –
Vas1.1 L +7%
BL2.9 T·m −22%, worse
Xmax2 mm −26%, worse
Sensitivity84.1 dB +2, better
WavecorFR084WA02
No current priceFs109 Hz +12%, worse
Qts0.79 –
Vas1.1 L +14%, worse
BL3.6 T·m –
Xmax2.5 mm −7%
Sensitivity84 dB +1.9
Dayton AudioCFC100-8
No current priceFs107 Hz +10%, worse
Qts0.78 −4%
Vas0.75 L −25%, better
BL3.9 T·m +5%
Xmax2.5 mm −7%
Sensitivity81.6 dB −0.5
PeerlessPLS-75F25AL02-08
No current priceFs100 Hz +3%
Qts0.74 −9%
Vas1.1 L +8%
BL3.6 T·m −4%
Xmax3.4 mm +25%, better
Sensitivity83.1 dB +1
LavoceFSN020.71F
No current priceFs212 Hz +119%, worse
Qts0.82 –
Vas0.22 L −78%, better
BL3.2 T·m −13%, worse
Xmax2.4 mm −11%, worse
Sensitivity85.5 dB +3.4, better
WavecorFR070OM01
No current priceFs116 Hz +20%, worse
Qts0.83 –
Vas0.6 L −40%, better
BL2.3 T·m −38%, worse
Xmax2.5 mm −7%
Sensitivity82.3 dB –
HiViM3N
No current priceFs91 Hz −6%
Qts0.80 –
Vas1.5 L +50%, worse
BL3 T·m −19%, worse
Xmax3 mm +11%, better
Sensitivity82.4 dB –
WavecorFR084OM01
No current priceFs115 Hz +19%, worse
Qts0.92 +14%, worse
Vas1.1 L +8%
BL2.8 T·m −26%, worse
Xmax2.3 mm −17%, worse
Sensitivity84.1 dB +2, better
Dayton AudioCFC100-4
No current priceFs94 Hz −3%
Qts0.60 −26%, better
Vas0.8 L −16%, better
BL3.1 T·m −15%, worse
Xmax2.5 mm −7%
Sensitivity81.7 dB –
EminenceALPHA 4-8
No current priceFs123 Hz +27%, worse
Qts0.75 −7%
Vas1.9 L +94%, worse
BL4.9 T·m +33%, better
Xmax2.6 mm −4%
Sensitivity88.4 dB +6.3, 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 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 |
|---|---|---|---|---|
SoundImports Import VAT and duty may apply | £12.52, the lowest price | 6 in stock | Visit shop at SoundImports | |
Audiophonics Import VAT and duty may apply | £12.48 | Available on order | Visit shop at Audiophonics |
Best price over time
Tracked since 1 Apr