REDCATT20NFR
£9.96 · 73% less, betterFs185 Hz +38%, worse
Qts0.52 −5%
Vas0.09 L +800%, worse
BL3.2 T·m −4%
Xmax3 mm +3%
Sensitivity82.3 dB +14.8, better
2-inch LF driver · FR series · 20 mm voice coil · 15 W
Fountek FR58EX 8Ω
8 Ω · 130–15000 Hz
£59.95
3.2%Willys-Hifi · All 3 offers
- Fs
- 134Hz
- Xmax
- 2.9mm
- SPL
- 68dB
- Pe
- 15W
- BL
- 3.4T·m
- Vd
- 5cm³
- Qts
- 0.55
- Vas
- 0.01L
Fountek FR58EX is a 2-inch 8 ohm LF driver rated at 15 W RMS. The validated T/S data includes Fs 134 Hz, Qts 0.55, Vas 0.01 L, Xmax 2.9 mm, sensitivity 67.5 dB, plus 5 cm³ Vd and 194 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 £37.60.
The published T/S values agree with each other
Thiele/Small
- Fs
- 134Hz
- Qts
- 0.55
- Qes
- 0.69
- Qms
- 2.6
- Vas
- 0.01L
- Re
- 6.4Ω
- Le
- 0.22mH
Motor and cone
- BL
- 3.4T·m
- Sd
- 17cm²
- Mms
- 2g
- Xmax
- 2.9mm
- Vd †
- 5cm³
- Voice coil
- 20mm
Power and response
- Sensitivity †
- 67.5dB
- Manufacturer sensitivity
- 82.3dB
- Power
- 15W
- Impedance
- 8Ω
- Range
- 130–15000Hz
- EBP †
- 194 · Leans vented
Size and mounting
- Diameter
- 62.0mm
- Cutout
- 51.3mm
- Depth
- 33.0mm
Other published values
- Cms
- 0.74mm/N
- Power Peak
- 30
Sensitivity shows 67.5 dB, calculated from the T/S values. Fountek publishes 82.3 dB, 14.8 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else Fountek lists
LF · Primary · 2″
- BL
- 3.4T·m
- Fs
- 134Hz
- Le
- 0.22mH
- Re
- 6.4Ω
- Sd
- 17cm²
- Cms
- 0.74mm/N
- Mms
- 2g
- Qes
- 0.69
- Qms
- 2.6
- Qts
- 0.55
- SPL
- 67.5dB
- Vas
- 0.01L
- Xmax
- 2.9mm
- Power
- 15W
- Impedance
- 8Ω
- Power Peak
- 30
- Sensitivity
- 82.3dB
- Low limit
- 130Hz
- Calculated sensitivity †
- 67.5dB
- High limit
- 15000Hz
- Manufacturer sensitivity
- 82.3dB
- Voice coil
- 20mm
- Diameter
- 62.0mm
- Depth
- 33.0mm
- Cutout
- 51.3mm
02
Compare
Same-size drivers, compared with the FR58EX. Clear differences are green when better and red when worse.
This driverFR58EX
Best price
£37.60
Fs
134 Hz
Qts
0.55
Vas
0.01 L
BL
3.4 T·m
Xmax
2.9 mm
Sensitivity
67.5 dB
Power
15 W
Dayton AudioPC83-4
£13.10 · 65% less, betterFs80 Hz −40%, better
Qts0.54 –
Vas2.0 L +19722%, worse
BL2.9 T·m −14%, worse
Xmax2 mm −31%, worse
Sensitivity84 dB +16.5, better
Dayton AudioPC83-8
£13.10 · 65% less, betterFs82 Hz −39%, better
Qts0.63 +15%, worse
Vas1.7 L +16890%, worse
BL3.5 T·m +3%
Xmax2 mm −31%, worse
Sensitivity83 dB +15.5, better
MonacorSPX-32M
£18.42 · 51% less, betterFs110 Hz −18%, better
Qts0.56 –
Vas1.6 L +15900%, worse
BL3.7 T·m +9%
Xmax1.1 mm −62%, worse
Sensitivity87.5 dB +20, better
MonacorSPX-31M
£19.26 · 49% less, betterFs110 Hz −18%, better
Qts0.58 +5%
Vas1.3 L +12900%, worse
BL3.6 T·m +7%
Xmax1.1 mm −62%, worse
Sensitivity86 dB +18.5, better
Dayton AudioND65-4
£25.04 · 33% less, betterFs90 Hz −33%, better
Qts0.61 +11%, worse
Vas0.53 L +5200%, worse
BL2.7 T·m −21%, worse
Xmax3.5 mm +21%, better
Sensitivity79.5 dB +12, better
SB AcousticsSB65WBAC25-4
£25.12 · 33% less, betterFs115 Hz −14%, better
Qts0.68 +24%, worse
Vas0.43 L +4200%, worse
BL2.9 T·m −14%, worse
Xmax2.6 mm −9%
Sensitivity81.3 dB +13.8, better
Tang BandW3-871B
£27.63 · 27% less, betterFs110 Hz −18%, better
Qts0.52 −5%
Vas1.2 L +11670%, worse
BL3.7 T·m +9%
Xmax0.5 mm −83%, worse
Sensitivity86.1 dB +18.6, better
Tang BandW2-2355S
£29.47 · 22% less, betterFs80 Hz −40%, better
Qts0.56 –
Vas0.14 L +1300%, worse
BL4.3 T·m +27%, better
Xmax5 mm +72%, better
Sensitivity72.3 dB +4.8, better
Tang BandW3-881SJ
£30.14 · 20% less, betterFs100 Hz −25%, better
Qts0.58 +5%
Vas2.3 L +23000%, worse
BL3.3 T·m –
Xmax0.2 mm −93%, worse
Sensitivity87.7 dB +20.2, better
Tang BandW3-871SC
£30.90 · 18% less, betterFs110 Hz −18%, better
Qts0.59 +7%
Vas1.6 L +16400%, worse
BL3.5 T·m +4%
Xmax0.5 mm −83%, worse
Sensitivity86.9 dB +19.4, better
MarkaudioCHN-70
£33.49 · 11% less, betterFs72 Hz −47%, better
Qts0.48 −13%, better
Vas5.3 L +53000%, worse
BL3.4 T·m –
Xmax4 mm +38%, better
Sensitivity86.8 dB +19.3, better
MarkaudioCHR-70
£37.64 · Same priceFs65 Hz −51%, better
Qts0.55 –
Vas5.2 L +51600%, worse
BL4.2 T·m +24%, better
Xmax4.3 mm +48%, better
Sensitivity85.2 dB +17.7, better
MarkaudioPLUVIA 7 PHD
£46.05 · 22% more, worseFs78 Hz −42%, better
Qts0.54 –
Vas4.5 L +44805%, worse
BL2.9 T·m −14%, worse
Xmax4 mm +38%, better
Sensitivity87.1 dB +19.6, better
Tang BandW3-1364SA
£50.24 · 34% more, worseFs105 Hz −22%, better
Qts0.59 +7%
Vas1.9 L +18700%, worse
BL3.1 T·m −7%
Xmax0.5 mm −83%, worse
Sensitivity86.5 dB +19, better
Scanspeak5F/8422T01
£53.50 · 42% more, worseFs93 Hz −31%, better
Qts0.61 +11%, worse
Vas0.5 L +4900%, worse
BL3.1 T·m −9%
Xmax2 mm −31%, worse
Sensitivity79.7 dB +12.2, better
MarkaudioALPAIR 7 MS
£58.61 · 56% more, worseFs75 Hz −44%, better
Qts0.56 –
Vas5.0 L +49580%, worse
BL3.9 T·m +14%, better
Xmax4.5 mm +55%, better
Sensitivity86.5 dB +19, better
WavecorFR070WA01
£81.22 · 116% more, worseFs121 Hz −10%
Qts0.56 –
Vas0.54 L +5300%, worse
BL3 T·m −12%, worse
Xmax2 mm −31%, worse
Sensitivity84.2 dB +16.7, better
WavecorFR070WA02
£81.22 · 116% more, worseFs114 Hz −15%, better
Qts0.53 −4%
Vas0.6 L +6000%, worse
BL3.6 T·m +6%
Xmax2 mm −31%, worse
Sensitivity84.2 dB +16.7, better
WavecorFR070WA05
£100.39 · 167% more, worseFs89 Hz −34%, better
Qts0.47 −15%, better
Vas0.6 L +5900%, worse
BL3.8 T·m +11%, better
Xmax2.7 mm −7%
Sensitivity81.4 dB +13.9, better
MonacorSP-45/8
No current priceFs120 Hz −10%, better
Qts0.55 –
Vas1.5 L +14900%, worse
BL3.4 T·m –
Xmax0.75 mm −74%, worse
Sensitivity87.8 dB +20.3, better
Tang BandW3-1319SA
No current priceFs110 Hz −18%, better
Qts0.55 –
Vas1.8 L +17600%, worse
BL3.5 T·m +4%
Xmax0.5 mm −83%, worse
Sensitivity87.4 dB +19.9, better
Tang BandW3-583SE
No current priceFs100 Hz −25%, better
Qts0.56 –
Vas2.5 L +24500%, worse
BL3.0 T·m −12%, worse
Xmax0.25 mm −91%, worse
Sensitivity87.5 dB +20, better
Tang BandW3-532SQ
No current priceFs100 Hz −25%, better
Qts0.61 +11%, worse
Vas1.7 L +16700%, worse
BL3.5 T·m +4%
Xmax0.2 mm −93%, worse
Sensitivity85.9 dB +18.4, better
Tang BandW3-582A
No current priceFs100 Hz −25%, better
Qts0.60 +9%
Vas1.8 L +17600%, worse
BL3.6 T·m +5%
Xmax0.25 mm −91%, worse
Sensitivity86.2 dB +18.7, better
Tang BandW35-1315SJ
No current priceFs80 Hz −40%, better
Qts0.49 −11%, better
Vas3.1 L +30700%, worse
BL4.5 T·m +34%, better
Xmax3 mm +3%
Sensitivity86 dB +18.5, better
MorelINTEGRA 424
No current priceFs120 Hz −10%, better
Qts0.48 −13%, better
Vas2 L +19900%, worse
BL4.3 T·m +27%, better
Xmax3 mm +3%
Sensitivity89.6 dB +22.1, better
MonacorSP-45/4
No current priceFs120 Hz −10%, better
Qts0.55 –
Vas1.5 L +14900%, worse
BL2.4 T·m −29%, worse
Xmax0.75 mm −74%, worse
Sensitivity87.8 dB +20.3, better
WavecorFR055WA04
No current priceFs128 Hz −4%
Qts0.51 −7%
Vas0.33 L +3200%, worse
BL3.3 T·m –
Xmax1.4 mm −53%, worse
Sensitivity83 dB +15.5, better
Tang BandW3-1053SC
No current priceFs100 Hz −25%, better
Qts0.52 −5%
Vas1.8 L +17600%, worse
BL3.7 T·m +9%
Xmax0.75 mm −74%, worse
Sensitivity87 dB +19.5, 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 | £59.95, the lowest price | Stock not listed | Visit shop at Willys-Hifi | |
Audiophonics Import VAT and duty may apply | £37.60 | In stock | Visit shop at Audiophonics | |
SoundImports Import VAT and duty may apply | £41.82 | 1 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£61.95 → £59.95Down 3.2% from £61.95
- 4 AugWillys-Hifi£59.95 → £61.95Up 3.3% from £59.95
- 21 JulWillys-Hifi£60.95 → £59.95Down 1.6% from £60.95