REDCATT35FR-1
£13.05 · 35% less, betterFs67 Hz −35%, better
Qts0.34 +3%
Vas1.6 L +281%, worse
BL5.5 T·m +32%, better
Xmax0.55 mm −71%, worse
Sensitivity83.2 dB –
2.5-inch LF driver · 15 W
Dayton Audio ND64-4 4Ω
4 Ω · 100–20000 Hz
£20.02
20%Audiophonics · In stock · Ships from France · All 2 offers
- Fs
- 103Hz
- Xmax
- 1.9mm
- SPL
- 83dB
- Pe
- 15W
- BL
- 4.1T·m
- Vd
- 3cm³
- Qts
- 0.33
- Vas
- 0.42L
Dayton Audio ND64-4 is a 2.5-inch 4 ohm LF driver rated at 15 W RMS. The validated T/S data includes Fs 103 Hz, Qts 0.33, Vas 0.4 L, Xmax 1.9 mm, sensitivity 83.1 dB, plus 3 cm³ Vd and 286 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 £20.02.
The published T/S values agree with each other
Thiele/Small
- Fs
- 103Hz
- Qts
- 0.33
- Qes
- 0.36
- Qms
- 4.4
- Vas
- 0.4L
- Re
- 3.7Ω
- Le
- 0.37mH
Motor and cone
- BL
- 4.1T·m
- Sd
- 16cm²
- Mms
- 3g
- Xmax
- 1.9mm
- Vd †
- 3cm³
Power and response
- Sensitivity †
- 83.1dB
- Manufacturer sensitivity
- 85.2dB
- Power
- 15W
- Impedance
- 4Ω
- Range
- 100–20000Hz
- EBP †
- 286 · Leans vented
Size and mounting
- Diameter
- 64mm
- Cutout
- 53mm
- Depth
- 39mm
- Weight
- 0.45kg
Other published values
- Cms
- 0.93mm/N
- Power Peak
- 30
Sensitivity shows 83.1 dB, calculated from the T/S values. Dayton Audio publishes 85.2 dB, 2.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Dayton Audio lists
LF · Primary · 2.5″
- BL
- 4.1T·m
- Fs
- 103Hz
- Le
- 0.37mH
- Re
- 3.7Ω
- Sd
- 16cm²
- Cms
- 0.93mm/N
- Mms
- 3g
- Qes
- 0.36
- Qms
- 4.4
- Qts
- 0.33
- SPL
- 83.1dB
- Vas
- 0.4L
- Xmax
- 1.9mm
- Power
- 15W
- Impedance
- 4Ω
- Power Peak
- 30
- Sensitivity
- 85.2dB
- Low limit
- 100Hz
- Calculated sensitivity †
- 83.1dB
- High limit
- 20000Hz
- Manufacturer sensitivity
- 85.2dB
- Weight
- 0.45kg
- Diameter
- 64mm
- Depth
- 39mm
- Cutout
- 53mm
02
Compare
Same-size drivers, compared with the ND64-4. Clear differences are green when better and red when worse.
This driverND64-4
Best price
£20.02
Fs
103 Hz
Qts
0.33
Vas
0.4 L
BL
4.1 T·m
Xmax
1.9 mm
Sensitivity
83.1 dB
Power
15 W
FaitalPRO2FE22
£15.79 · 21% less, betterFs125 Hz +21%, worse
Qts0.38 +15%, worse
Vas0.5 L +19%, worse
BL5.2 T·m +26%, better
Xmax2.9 mm +53%, better
Sensitivity85.6 dB +2.5, better
Dayton AudioDMA70-4
£17.51 · 13% less, betterFs113 Hz +10%
Qts0.44 +33%, worse
Vas0.57 L +35%, worse
BL3.7 T·m −10%, worse
Xmax2 mm +5%
Sensitivity83.7 dB +0.6
FaitalPRO3FE22
£18.20 · 9% less, betterFs110 Hz +7%
Qts0.36 +9%
Vas1.3 L +210%, worse
BL3.7 T·m −10%, worse
Xmax1.7 mm −9%
Sensitivity88.4 dB +5.3, better
CIAREHM087
£19.26 · 4% lessFs270 Hz +162%, worse
Qts1.39 +321%, worse
Vas0.2 L −52%, better
BL4.1 T·m –
Xmax2.1 mm +11%, better
Sensitivity84.9 dB +1.8
REDCATT25NFR
£19.63 · 2% lessFs123 Hz +19%, worse
Qts0.71 +115%, worse
Vas0.46 L +10%
BL4 T·m −3%
Xmax2.6 mm +39%, better
Sensitivity82.3 dB −0.8
Dayton AudioDMA70-8
£20.85 · 4% moreFs114 Hz +10%, worse
Qts0.50 +52%, worse
Vas0.57 L +35%, worse
BL4.7 T·m +14%, better
Xmax2 mm +5%
Sensitivity82.6 dB −0.5
Tang BandW2-852SH
£21.35 · 7% more, worseFs160 Hz +55%, worse
Qts0.29 −12%, better
Vas0.25 L −40%, better
BL3.0 T·m −28%, worse
Xmax1 mm −47%, worse
Sensitivity86.5 dB +3.4, better
PeerlessSLS-85S25CP04-04
£25.08 · 25% more, worseFs73 Hz −29%, better
Qts0.36 +9%
Vas1.4 L +240%, worse
BL4.3 T·m +4%
Xmax6.5 mm +242%, better
Sensitivity83.6 dB +0.5
Tang BandW2-2136S
£33.66 · 68% more, worseFs120 Hz +17%, worse
Qts0.31 −6%
Vas0.26 L −38%, better
BL3.7 T·m −10%, worse
Xmax2 mm +5%
Sensitivity82.6 dB −0.5
Tang BandW2-2243S
£37.40 · 87% more, worseFs160 Hz +55%, worse
Qts0.30 −9%
Vas0.23 L −45%, better
BL3.8 T·m −8%
Xmax1 mm −47%, worse
Sensitivity86.7 dB +3.6, better
Tang BandW3-1231SN
£46.05 · 130% more, worseFs100 Hz –
Qts0.34 +3%
Vas1.4 L +236%, worse
BL4.4 T·m +7%
Xmax1.3 mm −34%, worse
Sensitivity87.2 dB +4.1, better
Scanspeak5F/8422T01
£53.50 · 167% more, worseFs93 Hz −10%
Qts0.61 +85%, worse
Vas0.5 L +19%, worse
BL3.1 T·m −25%, worse
Xmax2 mm +5%
Sensitivity79.7 dB −3.4, worse
WavecorSW070WA02
£95.79 · 378% more, worseFs73 Hz −29%, better
Qts0.34 +3%
Vas0.9 L +112%, worse
BL4.8 T·m +15%, better
Xmax2.5 mm +32%, better
Sensitivity81.9 dB −1.2
Tang BandW3-1878
£125.60 · 527% more, worseFs75 Hz −27%, better
Qts0.28 −15%, better
Vas3.1 L +633%, worse
BL4.3 T·m +4%
Xmax4 mm +111%, better
Sensitivity87.9 dB +4.8, better
MorelCAW 428D
£150.67 · 653% more, worseFs65 Hz −37%, better
Qts0.33 –
Vas5.1 L +1114%, worse
BL5.2 T·m +27%, better
Xmax4 mm +111%, better
Sensitivity87.2 dB +4.1, better
Tang BandW2-1625SA
No current priceFs90 Hz −13%, better
Qts0.31 −6%
Vas0.3 L −26%, better
BL5.2 T·m +25%, better
Xmax2 mm +5%
Sensitivity80.4 dB −2.7, worse
Tang BandW2-2181S
No current priceFs120 Hz +17%, worse
Qts0.34 +3%
Vas0.24 L −43%, better
BL3.7 T·m −10%
Xmax2 mm +5%
Sensitivity81.9 dB −1.2
Tang BandW2-780SD
No current priceFs155 Hz +50%, worse
Qts0.35 +6%
Vas0.3 L −31%, better
BL3.6 T·m −12%, worse
Xmax1 mm −47%, worse
Sensitivity86.5 dB +3.4, better
CIARENDI3.21
No current priceFs90 Hz −13%, better
Qts0.38 +15%, worse
Vas1.8 L +329%, worse
BL4 T·m −3%
Xmax2 mm +5%
Sensitivity86.8 dB +3.7, better
MorelMSW 424D
No current priceFs60 Hz −42%, better
Qts0.32 −3%
Vas4.8 L +1031%, worse
BL4.5 T·m +8%
Xmax4 mm +111%, better
Sensitivity86.3 dB +3.2, better
PRV Audio2MR50-NDY
No current priceFs124 Hz +20%, worse
Qts0.37 +12%, worse
Vas0.44 L +5%
BL5.0 T·m +20%, better
Xmax2.9 mm +53%, better
Sensitivity85.1 dB +2, better
Tang BandW2-802SE
No current priceFs160 Hz +55%, worse
Qts0.36 +9%
Vas0.3 L −26%, better
BL3.5 T·m −15%, worse
Xmax1 mm −47%, worse
Sensitivity87 dB +3.9, better
Tang BandW2-835SL
No current priceFs160 Hz +55%, worse
Qts0.30 −9%
Vas0.24 L −43%, better
BL4.7 T·m +13%, better
Xmax1 mm −47%, worse
Sensitivity86.8 dB +3.7, better
Tang BandW2-2360S
No current priceFs170 Hz +65%, worse
Qts0.32 −3%
Vas0.27 L −36%, better
BL3 T·m −27%, worse
Xmax1 mm −47%, worse
Sensitivity86.9 dB +3.8, better
Dayton AudioND64-16
No current priceFs101 Hz –
Qts0.41 +24%, worse
Vas0.53 L +26%, worse
BL6.5 T·m +58%, better
Xmax1.9 mm –
Sensitivity82.9 dB –
REDCATT32NFR
No current priceFs118 Hz +15%, worse
Qts0.32 −3%
Vas1.1 L +171%, worse
BL5.3 T·m +30%, better
Xmax1.2 mm −37%, worse
Sensitivity89.3 dB +6.2, better
Tang BandW3-1797S
No current priceFs90 Hz −13%, better
Qts0.35 +6%
Vas1.0 L +131%, worse
BL4.6 T·m +10%, better
Xmax1 mm −47%, worse
Sensitivity84.1 dB +1
Tang BandW2-1767S
No current priceFs110 Hz +7%
Qts0.36 +9%
Vas0.22 L −48%, better
BL5.0 T·m +22%, better
Xmax3 mm +58%, better
Sensitivity80.6 dB −2.5, worse
MorelEM 428D
No current priceFs69 Hz −33%, better
Qts0.33 –
Vas4.1 L +876%, worse
BL6.0 T·m +44%, better
Xmax4 mm +111%, better
Sensitivity87.4 dB +4.3, better
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Audiophonics Import VAT and duty may apply | £20.02, the lowest price | In stock | Visit shop at Audiophonics | |
SoundImports Not currently listed · Last seen 17 Aug 2026 · Import VAT and duty may apply | £25.08 | 25% above the lowest price | Out of stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 20 AprSoundImports£22.15 → £25.08Up 13% from £22.15