REDCATT20NFR
£9.96Fs185 Hz +33%, worse
Qts0.52 +44%, worse
Vas0.09 L −40%, better
BL3.2 T·m +8%
Xmax3 mm +114%, better
Sensitivity82.3 dB +1
2-inch LF driver · FR series · 20 mm voice coil · 10 W
Fountek FR59EXE 4Ω
4 Ω · 139–20000 Hz
No price for delivery to the UK
- Fs
- 139Hz
- Xmax
- 1.4mm
- SPL
- 81dB
- Pe
- 10W
- BL
- 3.0T·m
- Vd
- 2cm³
- Qts
- 0.36
- Vas
- 0.15L
Fountek FR59EXE is a 2-inch 4 ohm LF driver rated at 10 W RMS. The validated T/S data includes Fs 139 Hz, Qts 0.36, Vas 0.15 L, Xmax 1.4 mm, sensitivity 81.3 dB, plus 2 cm³ Vd and 290 EBP. bits tracks vendor pricing, datasheet links, simulator import data, and similar drivers from the same loudspeaker database.
The published T/S values agree with each other
Thiele/Small
- Fs
- 139Hz
- Qts
- 0.36
- Qes
- 0.48
- Qms
- 1.5
- Vas
- 0.15L
- Re
- 3.9Ω
Motor and cone
- BL
- 3.0T·m
- Sd
- 17cm²
- Mms
- 1g
- Xmax
- 1.4mm
- Vd †
- 2cm³
- Voice coil
- 20mm
Power and response
- Sensitivity †
- 81.3dB
- Manufacturer sensitivity
- 88.6dB
- Power
- 10W
- Impedance
- 4Ω
- Range
- 139–20000Hz
- EBP †
- 290 · Leans vented
Size and mounting
- Diameter
- 73.7mm
- Cutout
- 58.4mm
- Bolt circle
- 66.0mm
- Depth
- 32.0mm
Other published values
- Cms
- 1.03mm/N
- Power Peak
- 20
Sensitivity shows 81.3 dB, calculated from the T/S values. Fountek publishes 88.6 dB, 7.3 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Fountek lists
LF · Primary · 2″
- BL
- 3.0T·m
- Fs
- 139Hz
- Re
- 3.9Ω
- Sd
- 17cm²
- Cms
- 1.03mm/N
- Mms
- 1g
- Qes
- 0.48
- Qms
- 1.5
- Qts
- 0.36
- SPL
- 88.6dB
- Vas
- 0.15L
- Xmax
- 1.4mm
- Power
- 10W
- Impedance
- 4Ω
- Power Peak
- 20
- Sensitivity
- 88.6dB
- Low limit
- 139Hz
- High limit
- 20000Hz
- Voice coil
- 20mm
- Diameter
- 73.7mm
- Depth
- 32.0mm
- Cutout
- 58.4mm
- Bolt circle
- 66.0mm
02
Compare
Same-size drivers, compared with the FR59EXE. Clear differences are green when better and red when worse.
This driverFR59EXE
Best price
–
Fs
139 Hz
Qts
0.36
Vas
0.15 L
BL
3.0 T·m
Xmax
1.4 mm
Sensitivity
81.3 dB
Power
10 W
Dayton AudioHARB252-8
£16.66Fs172 Hz +24%, worse
Qts1.74 +383%, worse
Vas0.19 L +27%, worse
BL3.0 T·m –
Xmax1.3 mm −7%
Sensitivity77.1 dB −4.2, worse
HiViB2S
£16.66Fs152 Hz +9%
Qts1.20 +233%, worse
Vas0.2 L +33%, worse
BL2.5 T·m −16%, worse
Xmax1.5 mm +7%
Sensitivity78.6 dB −2.7, worse
Dayton AudioDMA58-4
£16.70Fs166 Hz +19%, worse
Qts0.46 +28%, worse
Vas0.14 L −6%
BL3.7 T·m +24%, better
Xmax2 mm +43%, better
Sensitivity82.6 dB +1.3
Sica2 H 0.8 SL
£17.58Fs216 Hz +55%, worse
Qts0.81 +125%, worse
Vas0.1 L −33%, better
BL2.6 T·m −13%, worse
Xmax1.4 mm –
Sensitivity82.1 dB +0.8
Sica2.5 H 0.8 SL
£17.58Fs185 Hz +33%, worse
Qts0.92 +156%, worse
Vas0.2 L +33%, worse
BL2.8 T·m −6%
Xmax1.3 mm −7%
Sensitivity82.6 dB +1.3
FaitalPRO3FE22
£18.20Fs110 Hz −21%, better
Qts0.36 –
Vas1.3 L +767%, worse
BL3.7 T·m +24%, better
Xmax1.7 mm +24%, better
Sensitivity88.4 dB +7.1, better
Dayton AudioDSA90-8
£20.18Fs67 Hz −52%, better
Qts0.37 –
Vas2.3 L +1413%, worse
BL4.6 T·m +54%, better
Xmax2.5 mm +79%, better
Sensitivity83.8 dB +2.5, better
Tang BandW2-852SH
£21.35Fs160 Hz +15%, worse
Qts0.29 −19%, better
Vas0.25 L +67%, worse
BL3.0 T·m –
Xmax1 mm −29%, worse
Sensitivity86.5 dB +5.2, better
MonacorSPX-21M
£22.52Fs170 Hz +22%, worse
Qts0.47 +31%, worse
Vas0.1 L −33%, better
BL3.3 T·m +11%, better
Xmax1.2 mm −14%, worse
Sensitivity81.7 dB –
Dayton AudioRS75-8
£29.22Fs185 Hz +33%, worse
Qts1.07 +197%, worse
Vas0.11 L −24%, better
BL2.5 T·m −15%, worse
Xmax1.3 mm −7%
Sensitivity79.3 dB −2, worse
Tang BandW1-1070SH
£29.31Fs180 Hz +29%, worse
Qts0.42 +17%, worse
Vas0.09 L −40%, better
BL3.2 T·m +8%
Xmax2 mm +43%, better
Sensitivity82.1 dB +0.8
PRV Audio3MR40-NDY-4
£36.80Fs153 Hz +10%, worse
Qts0.77 +114%, worse
Vas0.6 L +320%, worse
BL2.9 T·m –
Xmax1.4 mm –
Sensitivity85.6 dB +4.3, better
Tang BandW3-2141
£46.05Fs75 Hz −46%, better
Qts0.39 +8%
Vas3.3 L +2100%, worse
BL3.6 T·m +22%, better
Xmax1.6 mm +14%, better
Sensitivity86.8 dB +5.5, better
Tang BandW3-1231SN
£46.05Fs100 Hz −28%, better
Qts0.34 −6%
Vas1.4 L +840%, worse
BL4.4 T·m +48%, better
Xmax1.3 mm −11%, worse
Sensitivity87.2 dB +5.9, better
MorelCAW 538
£149.94Fs49 Hz −65%, better
Qts0.38 +6%
Vas8.2 L +5367%, worse
BL6.9 T·m +131%, better
Xmax3 mm +114%, better
Sensitivity85.1 dB +3.8, better
Tang BandW1-2121S
No current priceFs120 Hz −14%, better
Qts0.35 –
Vas0.11 L −27%, better
BL3.1 T·m +5%
Xmax2.3 mm +64%, better
Sensitivity78.1 dB −3.2, worse
Tang BandW1-1828SA
No current priceFs120 Hz −14%, better
Qts0.33 −8%
Vas0.23 L +53%, worse
BL2.6 T·m −13%, worse
Xmax1.3 mm −11%, worse
Sensitivity82.3 dB +1
Tang BandW2-2360S
No current priceFs170 Hz +22%, worse
Qts0.32 −11%, better
Vas0.27 L +80%, worse
BL3 T·m –
Xmax1 mm −29%, worse
Sensitivity86.9 dB +5.6, better
WavecorFR055WA04
No current priceFs128 Hz −8%
Qts0.51 +42%, worse
Vas0.33 L +120%, worse
BL3.3 T·m +10%, better
Xmax1.4 mm −4%
Sensitivity83 dB +1.7
Dayton AudioCE4249N-4
No current priceFs184 Hz +32%, worse
Qts0.49 +36%, worse
Vas0.039 L −74%, better
BL2.9 T·m –
Xmax1.6 mm +14%, better
Sensitivity78.6 dB −2.7, worse
Tang BandW1-1942S
No current priceFs120 Hz −14%, better
Qts0.24 −33%, better
Vas0.16 L +5%
BL3.5 T·m +17%, better
Xmax1.3 mm −7%
Sensitivity82.1 dB +0.8
Tang BandW2-803SM
No current priceFs160 Hz +15%, worse
Qts0.40 +11%, worse
Vas0.25 L +67%, worse
BL2.7 T·m −10%, worse
Xmax0.85 mm −39%, worse
Sensitivity85.5 dB +4.2, better
Tang BandW2-802SE
No current priceFs160 Hz +15%, worse
Qts0.36 –
Vas0.3 L +107%, worse
BL3.5 T·m +17%, better
Xmax1 mm −29%, worse
Sensitivity87 dB +5.7, better
WavecorFR055WA03
No current priceFs142 Hz –
Qts0.57 +58%, worse
Vas0.27 L +80%, worse
BL2.7 T·m −10%
Xmax1.4 mm −4%
Sensitivity83.1 dB +1.8
Tang BandW2-1767S
No current priceFs110 Hz −21%, better
Qts0.36 –
Vas0.22 L +47%, worse
BL5.0 T·m +69%, better
Xmax3 mm +114%, better
Sensitivity80.6 dB −0.7
Tang BandW2-780SD
No current priceFs155 Hz +12%, worse
Qts0.35 –
Vas0.3 L +93%, worse
BL3.6 T·m +22%, better
Xmax1 mm −29%, worse
Sensitivity86.5 dB +5.2, better
Tang BandW1-1931S
No current priceFs170 Hz +22%, worse
Qts0.46 +28%, worse
Vas0.02 L −87%, better
BL2.6 T·m −13%, worse
Xmax1.2 mm −14%, worse
Sensitivity74.6 dB −6.7, worse
Tang BandW2-2181S
No current priceFs120 Hz −14%, better
Qts0.34 −6%
Vas0.24 L +60%, worse
BL3.7 T·m +24%, better
Xmax2 mm +43%, better
Sensitivity81.9 dB +0.6
Tang BandW3-1797S
No current priceFs90 Hz −35%, better
Qts0.35 –
Vas1.0 L +547%, worse
BL4.6 T·m +53%, better
Xmax1 mm −29%, worse
Sensitivity84.1 dB +2.8, 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 |
|---|---|---|---|---|
Willys-Hifi | £64.75 | Out of stock | Visit shop at Willys-Hifi | |
SoundImports Not currently listed · Last seen 17 May 2026 · Import VAT and duty may apply | £50.20 | Stock not listed | Visit shop at SoundImports |