FaitalPRO3FE25
£8.68 · 45% less, betterFs110 Hz −4%
Qts0.66 −25%, better
Vas1.3 L +53%, worse
BL3.6 T·m –
Xmax1.8 mm +8%
Sensitivity85.4 dB +2, better
3-inch LF driver · 25 mm voice coil · 30 W
REDCATT 31NFR 8Ω
8 Ω
£15.75
Lautsprecherteile · 12 in stock · All 1 offer
- Fs
- 115Hz
- Xmax
- 1.7mm
- SPL
- 83dB
- Pe
- 30W
- BL
- 3.5T·m
- Vd
- 5cm³
- Qts
- 0.88
- Vas
- 0.85L
REDCATT 31NFR is a 3-inch 8 ohm LF driver rated at 30 W RMS. The validated T/S data includes Fs 115 Hz, Qts 0.88, Vas 0.85 L, Xmax 1.7 mm, sensitivity 83.4 dB, plus 5 cm³ Vd and 122 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £15.75.
The published T/S values agree with each other
Thiele/Small
- Fs
- 115Hz
- Qts
- 0.88
- Qes
- 0.94
- Qms
- 15.1
- Vas
- 0.85L
- Re
- 6.3Ω
- Le
- 0.09mH
Motor and cone
- BL
- 3.5T·m
- Sd
- 28cm²
- Mms
- 3g
- Xmax
- 1.7mm
- Vd †
- 5cm³
- Voice coil
- 25mm
Power and response
- Sensitivity †
- 83.4dB
- Manufacturer sensitivity
- 84.5dB
- Power
- 30W
- Impedance
- 8Ω
- EBP †
- 122 · Leans vented
Size and mounting
- Diameter
- 78.7mm
- Cutout
- 71.5mm
- Bolt circle
- 84mm
- Weight
- 0.18kg
Other published values
- Xmech
- 5.7
- Power Peak
- 120
Other dimensions
- Mounting Depth
- 45.3
Sensitivity shows 83.4 dB, calculated from the T/S values. REDCATT publishes 84.5 dB, 1.1 dB apart.
† Calculated by bits from the published values
What this validation status means
Everything else REDCATT lists
LF · Primary · 3″
- BL
- 3.5T·m
- Fs
- 115Hz
- Le
- 0.09mH
- Re
- 6.3Ω
- Sd
- 28cm²
- Mms
- 3g
- Qes
- 0.94
- Qms
- 15.1
- Qts
- 0.88
- SPL
- 83.4dB
- Vas
- 0.85L
- Xmax
- 1.7mm
- Xmech
- 5.7
- Power
- 30W
- Impedance
- 8Ω
- Power Peak
- 120
- Sensitivity
- 84.5dB
- Calculated sensitivity †
- 83.4dB
- Manufacturer sensitivity
- 84.5dB
- Voice coil
- 25mm
- Weight
- 0.18kg
- Diameter
- 78.7mm
- Mounting Depth
- 45.3
- Cutout
- 71.5mm
- Bolt circle
- 84mm
02
Compare
Same-size drivers, compared with the 31NFR. Clear differences are green when better and red when worse.
This driver31NFR
Best price
£15.75
Fs
115 Hz
Qts
0.88
Vas
0.85 L
BL
3.5 T·m
Xmax
1.7 mm
Sensitivity
83.4 dB
Power
30 W
REDCATT30FF
£9.18 · 42% less, betterFs119 Hz +3%
Qts0.78 −11%, better
Vas0.8 L −5%
BL3.3 T·m −7%
Xmax19 mm +1018%, better
Sensitivity83.5 dB –
LavoceFSF030.70
£9.23 · 41% less, betterFs123 Hz +7%
Qts0.77 −12%, better
Vas1.2 L +38%, worse
BL3.5 T·m –
Xmax2.1 mm +24%, better
Sensitivity85.9 dB +2.5, better
FaitalPRO2FE24
£12.05 · 24% less, betterFs170 Hz +48%, worse
Qts0.94 +7%
Vas0.3 L −65%, better
BL3.5 T·m –
Xmax1.8 mm –
Sensitivity82.9 dB −0.5
Dayton AudioCE81PF-8
£12.76 · 19% less, betterFs97 Hz −16%, better
Qts0.81 −8%
Vas1.0 L +17%, worse
BL3.7 T·m +6%
Xmax2.7 mm +59%, better
Sensitivity82.1 dB −1.3
REDCATT22NFR
£14.08 · 11% less, betterFs255 Hz +122%, worse
Qts0.85 −3%
Vas0.08 L −91%, better
BL3.9 T·m +12%, better
Xmax0.75 mm −56%, worse
Sensitivity83.3 dB –
PeerlessPLS-P830986
£14.73 · 6% less, betterFs110 Hz −4%
Qts0.80 −9%
Vas0.8 L –
BL3.5 T·m –
Xmax3.4 mm +99%, better
Sensitivity82.7 dB −0.7
HiViB3N
£15.75 · Same priceFs77 Hz −33%, better
Qts0.86 –
Vas1.7 L +100%, worse
BL3.1 T·m −11%, worse
Xmax3 mm +76%, better
Sensitivity80.6 dB −2.8, worse
FaitalPRO3FE26
£19.20 · 22% more, worseFs150 Hz +30%, worse
Qts0.79 −10%, better
Vas0.9 L +6%
BL3.3 T·m −6%
Xmax2 mm +18%, better
Sensitivity86.4 dB +3, better
PeerlessTG9FD10-04
£19.59 · 24% more, worseFs130 Hz +13%, worse
Qts0.87 –
Vas1.0 L +15%, worse
BL2.6 T·m −27%, worse
Xmax3.9 mm +131%, better
Sensitivity84.7 dB +1.3
Dayton AudioPS95-8
£22.58 · 43% more, worseFs120 Hz +4%
Qts0.72 −18%, better
Vas0.9 L +11%, worse
BL3.8 T·m +9%
Xmax2.5 mm +47%, better
Sensitivity85.1 dB +1.7
Sica3 L 0.8 SL
£27.28 · 73% more, worseFs145 Hz +26%, worse
Qts1.01 +15%, worse
Vas0.8 L −6%
BL2.8 T·m −20%, worse
Xmax1.5 mm −12%, worse
Sensitivity84.8 dB +1.4
WavecorFR070WA04
£34.11 · 117% more, worseFs114 Hz –
Qts0.87 –
Vas0.6 L −28%, better
BL2.9 T·m −17%, worse
Xmax2 mm +18%, better
Sensitivity81.9 dB −1.5
WavecorFR070WA03
£34.11 · 117% more, worseFs121 Hz +5%
Qts0.92 +5%
Vas0.54 L −36%, better
BL2.3 T·m −34%, worse
Xmax2 mm +18%, better
Sensitivity81.9 dB −1.5
PRV Audio3MR40-NDY-4
£37.52 · 138% more, worseFs153 Hz +33%, worse
Qts0.77 −12%, better
Vas0.6 L −26%, better
BL2.9 T·m −16%, worse
Xmax1.4 mm −18%, worse
Sensitivity85.6 dB +2.2, better
WavecorWF090WA01
£41.56 · 164% more, worseFs115 Hz –
Qts0.81 −8%
Vas1.0 L +20%, worse
BL2.9 T·m −17%, worse
Xmax2.8 mm +62%, better
Sensitivity84.3 dB +0.9
PRV Audio4MR60-NDY-4
£42.64 · 171% more, worseFs96 Hz −17%, better
Qts0.85 −3%
Vas2.9 L +235%, worse
BL2.8 T·m −19%, worse
Xmax1.4 mm −18%, worse
Sensitivity85.8 dB +2.4, better
WavecorWF090WA02
£58.23 · 270% more, worseFs109 Hz −5%
Qts0.76 −14%, better
Vas1.1 L +34%, worse
BL3.5 T·m –
Xmax2.8 mm +62%, better
Sensitivity84.3 dB +0.9
WavecorFR090WA02
£62.32 · 296% more, worseFs109 Hz −5%
Qts0.85 −3%
Vas1.1 L +34%, worse
BL3.4 T·m –
Xmax2.3 mm +32%, better
Sensitivity83.7 dB –
WavecorFR090WA01
£62.32 · 296% more, worseFs113 Hz –
Qts0.88 –
Vas1.1 L +26%, worse
BL2.8 T·m −21%, worse
Xmax2.3 mm +32%, better
Sensitivity83.8 dB –
WavecorFR084WA01
£62.92 · 299% more, worseFs113 Hz –
Qts0.82 −7%
Vas1.1 L +26%, worse
BL2.9 T·m −17%, worse
Xmax2 mm +18%, better
Sensitivity84.1 dB +0.7
SEASH1600-04 FU10RB
£85.33 · 442% more, worseFs102 Hz −11%, better
Qts0.91 +3%
Vas1 L +18%, worse
BL2.7 T·m −22%, worse
Xmax2 mm +18%, better
Sensitivity81.2 dB −2.2, worse
WavecorFR084WA02
No current priceFs109 Hz −5%
Qts0.79 −10%, better
Vas1.1 L +34%, worse
BL3.6 T·m +4%
Xmax2.5 mm +47%, better
Sensitivity84 dB +0.6
Dayton AudioCFC100-8
No current priceFs107 Hz −7%
Qts0.78 −11%, better
Vas0.75 L −12%, better
BL3.9 T·m +11%, better
Xmax2.5 mm +47%, better
Sensitivity81.6 dB −1.8
SEASH1600-08 FU10RB
No current priceFs102 Hz −11%, better
Qts0.96 +9%
Vas1 L +18%, worse
BL3.6 T·m –
Xmax2 mm +18%, better
Sensitivity81 dB −2.4, worse
PeerlessPLS-75F25AL02-08
No current priceFs100 Hz −13%, better
Qts0.74 −16%, better
Vas1.1 L +27%, worse
BL3.6 T·m –
Xmax3.4 mm +99%, better
Sensitivity83.1 dB –
WavecorFR084OM01
No current priceFs115 Hz –
Qts0.92 +5%
Vas1.1 L +27%, worse
BL2.8 T·m −21%, worse
Xmax2.3 mm +32%, better
Sensitivity84.1 dB +0.7
LavoceFSN020.71F
No current priceFs212 Hz +84%, worse
Qts0.82 −7%
Vas0.22 L −74%, better
BL3.2 T·m −7%
Xmax2.4 mm +41%, better
Sensitivity85.5 dB +2.1, better
VisatonFRS 10 WP - 4 OHM
No current priceFs190 Hz +65%, worse
Qts0.91 +3%
Vas2 L +135%, worse
BL3.8 T·m +9%
Xmax3 mm +76%, better
Sensitivity93.3 dB +9.9, better
WavecorFR055WA02
No current priceFs128 Hz +11%, worse
Qts0.82 −7%
Vas0.33 L −61%, better
BL2.7 T·m −24%, worse
Xmax1.4 mm −21%, worse
Sensitivity80.8 dB −2.6, worse
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 |
|---|---|---|---|---|
Lautsprecherteile | £15.75, the lowest price | 12 in stock | Visit shop at Lautsprecherteile |
Best price over time
Tracked since 1 Oct