FaitalPRO2FE22
£15.79 · 22% less, betterFs125 Hz +88%, worse
Qts0.38 –
Vas0.5 L −78%, better
BL5.2 T·m +13%, better
Xmax2.9 mm +16%, better
Sensitivity85.6 dB +1.8
3-inch LF driver · 20 W
Dayton Audio DSA90-8 8Ω
8 Ω · 66–15000 Hz
£20.18
Steady22% below the average of 4 shops
Parts Express · 111 in stock · Ships from United States · All 4 offers
- Fs
- 67Hz
- Xmax
- 2.5mm
- SPL
- 84dB
- Pe
- 20W
- BL
- 4.6T·m
- Vd
- 8cm³
- Qts
- 0.37
- Vas
- 2L
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
198 plotted pointsMedium confidence585 selected pixels of 1,157 - Trace datasheet-response-trace-poc/v1
30 degrees
Frequency response
240 plotted pointsMedium confidence605 selected pixels of 865 - Trace datasheet-response-trace-poc/v1
45 degrees
Frequency response
240 plotted pointsMedium confidence1,256 selected pixels of 1,489 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence1,333 selected pixels of 1,333
Dayton Audio DSA90-8 is a 3-inch 8 ohm LF driver rated at 20 W RMS. The validated T/S data includes Fs 67 Hz, Qts 0.37, Vas 2.3 L, Xmax 2.5 mm, sensitivity 83.8 dB, plus 8 cm³ Vd and 148 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 £20.18.
The published T/S values agree with each other
Thiele/Small
- Fs
- 67Hz
- Qts
- 0.37
- Qes
- 0.45
- Qms
- 2.1
- Vas
- 2.3L
- Re
- 6.6Ω
- Le
- 0.53mH
Motor and cone
- BL
- 4.6T·m
- Sd
- 31cm²
- Mms
- 4g
- Xmax
- 2.5mm
- Vd †
- 8cm³
Power and response
- Sensitivity †
- 83.8dB
- Manufacturer sensitivity
- 84.7dB
- Power
- 20W
- Impedance
- 8Ω
- Range
- 66–15000Hz
- EBP †
- 148 · Leans vented
Size and mounting
- Diameter
- 92.3mm
- Cutout
- 70mm
- Depth
- 44.6mm
- Weight
- 0.54kg
Other published values
- Cms
- 1.64mm/N
- Power Peak
- 40
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 3″
- BL
- 4.6T·m
- Fs
- 67Hz
- Le
- 0.53mH
- Re
- 6.6Ω
- Sd
- 31cm²
- Cms
- 1.64mm/N
- Mms
- 4g
- Qes
- 0.45
- Qms
- 2.1
- Qts
- 0.37
- SPL
- 83.8dB
- Vas
- 2.3L
- Xmax
- 2.5mm
- Power
- 20W
- Impedance
- 8Ω
- Power Peak
- 40
- Sensitivity
- 84.7dB
- Low limit
- 66Hz
- Calculated sensitivity †
- 83.8dB
- High limit
- 15000Hz
- Manufacturer sensitivity
- 84.7dB
- Weight
- 0.54kg
- Diameter
- 92.3mm
- Depth
- 44.6mm
- Cutout
- 70mm
02
Compare
Same-size drivers, compared with the DSA90-8. Clear differences are green when better and red when worse.
This driverDSA90-8
Best price
£20.18
Fs
67 Hz
Qts
0.37
Vas
2.3 L
BL
4.6 T·m
Xmax
2.5 mm
Sensitivity
83.8 dB
Power
20 W
Dayton AudioDS90-8
£16.44 · 19% less, betterFs81 Hz +22%, worse
Qts0.43 +16%, worse
Vas1.3 L −42%, better
BL4.8 T·m +3%
Xmax2.5 mm –
Sensitivity83.3 dB −0.5
Sica3.5 H 1 CS
£18.42 · 9% less, betterFs85 Hz +28%, worse
Qts0.53 +43%, worse
Vas1.8 L −21%, better
BL4.8 T·m +5%
Xmax2.5 mm –
Sensitivity84.9 dB +1.1
Dayton AudioND91-4
£20.93 · 4% moreFs74 Hz +11%, worse
Qts0.41 +11%, worse
Vas1.4 L −38%, better
BL4.6 T·m –
Xmax4.6 mm +84%, better
Sensitivity83 dB −0.8
Sica4 E 1 CS
£23.86 · 18% more, worseFs118 Hz +77%, worse
Qts0.39 +5%
Vas1.3 L −43%, better
BL5.8 T·m +25%, better
Xmax2.2 mm −12%, worse
Sensitivity88.4 dB +4.6, better
FaitalPRO4FE42
£29.42 · 46% more, worseFs110 Hz +65%, worse
Qts0.38 –
Vas1.8 L −21%, better
BL5.4 T·m +17%, better
Xmax2.8 mm +13%, better
Sensitivity89.8 dB +6, better
Tang BandW3-881SJF
£30.14 · 49% more, worseFs100 Hz +50%, worse
Qts0.39 +5%
Vas1.9 L −17%, better
BL4.5 T·m −3%
Xmax0.5 mm −80%, worse
Sensitivity88.7 dB +4.9, better
LavoceFSN030.72
£30.67 · 52% more, worseFs127 Hz +91%, worse
Qts0.41 +11%, worse
Vas1.1 L −51%, better
BL5.0 T·m +8%
Xmax2.1 mm −16%, worse
Sensitivity89.3 dB +5.5, better
MonacorSP-100/8
£31.15 · 54% more, worseFs61 Hz −8%
Qts0.37 –
Vas4.7 L +107%, worse
BL5.5 T·m +19%, better
Xmax2.5 mm –
Sensitivity85.9 dB +2.1, better
LavoceFSN041.00
£34.72 · 72% more, worseFs114 Hz +71%, worse
Qts0.38 –
Vas1.8 L −19%, better
BL6.9 T·m +49%, better
Xmax2.2 mm −12%, worse
Sensitivity90 dB +6.2, better
Sica4 L1 1 SL
£38.93 · 93% more, worseFs120 Hz +80%, worse
Qts0.36 –
Vas1.2 L −47%, better
BL6.2 T·m +34%, better
Xmax2.5 mm –
Sensitivity88.8 dB +5, better
Tang BandW3-1231SN
£46.05 · 128% more, worseFs100 Hz +50%, worse
Qts0.34 −8%
Vas1.4 L −38%, better
BL4.4 T·m −4%
Xmax1.3 mm −50%, worse
Sensitivity87.2 dB +3.4, better
Tang BandW4-1052SDF
£47.37 · 135% more, worseFs70 Hz +5%
Qts0.42 +14%, worse
Vas5.2 L +130%, worse
BL4.1 T·m −11%, worse
Xmax2.6 mm +4%
Sensitivity87.9 dB +4.1, better
SB AcousticsSB12MNRX25-4
£52.29 · 159% more, worseFs58 Hz −13%, better
Qts0.37 –
Vas5.5 L +142%, worse
BL3.7 T·m −20%, worse
Xmax2.3 mm −10%, worse
Sensitivity86.1 dB +2.3, better
MonacorSPH-30X/8SW
£57.31 · 184% more, worseFs105 Hz +58%, worse
Qts0.42 +14%, worse
Vas1.3 L −43%, better
BL4.5 T·m –
Xmax2 mm −20%, worse
Sensitivity86.9 dB +3.1, better
Tang BandW4-2414
£66.90 · 231% more, worseFs65 Hz –
Qts0.40 +8%
Vas3.9 L +70%, worse
BL5.5 T·m +19%, better
Xmax2.5 mm –
Sensitivity85.6 dB +1.8
Tang BandW4-1337SDF
£71.17 · 253% more, worseFs70 Hz +5%
Qts0.34 −8%
Vas5.6 L +147%, worse
BL5.3 T·m +15%, better
Xmax2.5 mm –
Sensitivity88.9 dB +5.1, better
Scanspeak10F/8424G00
£83.73 · 315% more, worseFs90 Hz +35%, worse
Qts0.37 –
Vas2.1 L −7%
BL4.8 T·m +4%
Xmax2.6 mm +4%
Sensitivity87.8 dB +4, better
WavecorSW070WA01
£95.79 · 375% more, worseFs84 Hz +26%, worse
Qts0.39 +5%
Vas0.7 L −70%, better
BL3.9 T·m −16%, worse
Xmax2.5 mm –
Sensitivity81.8 dB −2, worse
WavecorSW070WA02
£95.79 · 375% more, worseFs73 Hz +10%
Qts0.34 −8%
Vas0.9 L −61%, better
BL4.8 T·m +3%
Xmax2.5 mm –
Sensitivity81.9 dB −1.9
VisatonTI 100
£154.93 · 668% more, worseFs62 Hz −7%
Qts0.41 +11%, worse
Vas5.7 L +150%, worse
BL5.0 T·m +8%
Xmax2.3 mm −10%, worse
Sensitivity86.9 dB +3.1, better
CIARENDI3.21
No current priceFs90 Hz +35%, worse
Qts0.38 –
Vas1.8 L −21%, better
BL4 T·m −13%, worse
Xmax2 mm −20%, worse
Sensitivity86.8 dB +3, better
Dayton AudioDMA80-4
No current priceFs94 Hz +40%, worse
Qts0.41 +11%, worse
Vas1.4 L −38%, better
BL3.7 T·m −20%, worse
Xmax2.5 mm –
Sensitivity85.6 dB +1.8
PRV Audio2MR50-NDY
No current priceFs124 Hz +86%, worse
Qts0.37 –
Vas0.44 L −81%, better
BL5.0 T·m +8%
Xmax2.9 mm +16%, better
Sensitivity85.1 dB +1.3
Tang BandW4-1320SMF
No current priceFs70 Hz +5%
Qts0.36 –
Vas7.4 L +226%, worse
BL3.5 T·m −23%, worse
Xmax2.4 mm −4%
Sensitivity89.7 dB +5.9, better
Tang BandW4-1320SJF
No current priceFs75 Hz +13%, worse
Qts0.38 –
Vas5.2 L +130%, worse
BL5.1 T·m +11%, better
Xmax3 mm +20%, better
Sensitivity88.9 dB +5.1, better
Tang BandW4-1320SJ
No current priceFs75 Hz +13%, worse
Qts0.35 −5%
Vas6.4 L +182%, worse
BL4.7 T·m –
Xmax3 mm +20%, better
Sensitivity89.4 dB +5.6, better
CIARENDI3.25
No current priceFs77 Hz +16%, worse
Qts0.40 +8%
Vas1.7 L −25%, better
BL4.2 T·m −9%
Xmax3.9 mm +56%, better
Sensitivity84.1 dB –
Dayton AudioDMA90-4
No current priceFs88 Hz +32%, worse
Qts0.45 +22%, worse
Vas2.3 L –
BL3.5 T·m −24%, worse
Xmax2.5 mm –
Sensitivity86.5 dB +2.7, better
Tang BandW3-1797S
No current priceFs90 Hz +35%, worse
Qts0.35 −5%
Vas1.0 L −57%, better
BL4.6 T·m –
Xmax1 mm −60%, worse
Sensitivity84.1 dB –
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- Parts Express4.1 out of 57 ratings · Checked 26 Oct 2026Read reviews on Parts Express
- SoundImports4.8 out of 55 ratings · 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 | £20.18, the lowest price | 111 in stock | Visit shop at Parts Express | |
RumoH Import VAT and duty may apply | £24.20 | 20% above the lowest price | Stock not listed | Visit shop at RumoH |
Audiophonics Import VAT and duty may apply | £29.21 | 45% above the lowest price | In stock | Visit shop at Audiophonics |
SoundImports Import VAT and duty may apply | £29.26 | 45% above the lowest price | 192 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 12 AugParts Express£19.43 → £20.18Up 3.9% from £19.43