4-inch LF driver · 25 mm voice coil · 40 W

REDCATT 41NFR 16Ω

Name: REDCATT 41NFR 16 Ohm
Brand: REDCATT
SKU: 41NFR
Availability: InStock

16 Ω

£30.48

Lautsprecherteile · 16 in stock · All 1 offer

Open in 00 Simulator

Fs: 98Hz
Xmax: 3.1mm
SPL: 89dB
Pe: 40W
BL: 10T·m
Vd: 18cm³
Qts: 0.37
Vas: 2L

See all 25 specs

Specifications

Published by REDCATT

Manufacturer page

Datasheet PDF

REDCATT 41NFR is a 4-inch 16 ohm LF driver rated at 40 W RMS. The validated T/S data includes Fs 98 Hz, Qts 0.37, Vas 2.1 L, Xmax 3.1 mm, sensitivity 89 dB, plus 18 cm³ Vd and 245 EBP. bits tracks UK vendor pricing, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £30.48.

The published T/S values agree with each other

Thiele/Small

Fs: 98Hz
Qts: 0.37
Qes: 0.40
Qms: 5.0
Vas: 2.1L
Re: 12.2Ω
Le: 0.58mH

Motor and cone

BL: 10T·m
Sd: 57cm²
Mms: 5g
Xmax: 3.1mm
Vd †: 18cm³
Voice coil: 25mm

Power and response

Sensitivity †: 89dB
Manufacturer sensitivity: 90.3dB
Power: 40W
Impedance: 16Ω
EBP †: 245 · Leans vented

Size and mounting

Diameter: 104.5mm
Cutout: 92.2mm
Bolt circle: 106.3mm
Weight: 0.54kg

Other published values

Xmech: 8.15
Power Peak: 160

Other dimensions

Mounting Depth: 51.2

Sensitivity shows 89.0 dB, calculated from the T/S values. REDCATT publishes 90.3 dB, 1.3 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else REDCATT lists

LF · Primary · 4″

BL: 10T·m
Fs: 98Hz
Le: 0.58mH
Re: 12.2Ω
Sd: 57cm²
Mms: 5g
Qes: 0.40
Qms: 5.0
Qts: 0.37
SPL: 89dB
Vas: 2.1L
Xmax: 3.1mm
Xmech: 8.15
Power: 40W
Impedance: 16Ω
Power Peak: 160
Sensitivity: 90.3dB
Calculated sensitivity †: 89dB
Manufacturer sensitivity: 90.3dB
Voice coil: 25mm
Weight: 0.54kg
Diameter: 104.5mm
Mounting Depth: 51.2
Cutout: 92.2mm
Bolt circle: 106.3mm

Compare

Same-size drivers, compared with the 41NFR. Clear differences are green when better and red when worse.

This driver41NFR

Best price

£30.48

98 Hz

Qts

0.37

Vas

2.1 L

10 T·m

Xmax

3.1 mm

Sensitivity

89 dB

Power

40 W

REDCATT5FHW

£16.17 · 47% less

Fs50 Hz −49%

Qts0.35 −5%

Vas6.5 L +212%

BL6.5 T·m −35%

Xmax3.2 mm –

Sensitivity85.4 dB −3.6

HiViM5N

£18.88 · 38% less

Fs47 Hz −52%

Qts0.35 −5%

Vas11.3 L +438%

BL7.5 T·m −25%

Xmax2.7 mm −14%

Sensitivity87 dB −2

Dayton AudioDSA90-8

£20.39 · 33% less

Fs67 Hz −32%

Qts0.37 –

Vas2.3 L +8%

BL4.6 T·m −54%

Xmax2.5 mm −21%

Sensitivity83.8 dB −5.2

FaitalPRO4FE42

£29.42 · 3% less

Fs110 Hz +12%

Qts0.38 –

Vas1.8 L −14%

BL5.4 T·m −46%

Xmax2.8 mm −10%

Sensitivity89.8 dB +0.8

Tang BandW3-881SJF

£30.74 · Same price

Fs100 Hz –

Qts0.39 +5%

Vas1.9 L −10%

BL4.5 T·m −55%

Xmax0.5 mm −84%

Sensitivity88.7 dB –

LavoceFSN041.00

£34.72 · 14% more

Fs114 Hz +16%

Qts0.38 –

Vas1.8 L −12%

BL6.9 T·m −31%

Xmax2.2 mm −30%

Sensitivity90 dB +1

CIAREPWA5.38

£37.58 · 23% more

Fs78 Hz −20%

Qts0.37 –

Vas4.5 L +114%

BL8.9 T·m −11%

Xmax3.9 mm +24%

Sensitivity89.2 dB –

B&C5FG44

£38.00 · 25% more

Fs70 Hz −29%

Qts0.39 +5%

Vas5.1 L +143%

BL11.6 T·m +16%

Xmax3 mm −5%

Sensitivity88.4 dB −0.6

Tang BandW4-1320SIF

£58.91 · 93% more

Fs75 Hz −23%

Qts0.36 –

Vas5.2 L +149%

BL5.3 T·m −47%

Xmax3 mm −5%

Sensitivity89.2 dB –

Sica5 NR 1.5 PL

£65.06 · 113% more

Fs61 Hz −38%

Qts0.35 −5%

Vas7.4 L +252%

BL6.7 T·m −34%

Xmax3.5 mm +11%

Sensitivity88.4 dB −0.6

WavecorWF118WA01

£77.95 · 156% more

Fs64 Hz −35%

Qts0.36 –

Vas4.3 L +105%

BL4.6 T·m −54%

Xmax3 mm −5%

Sensitivity86.8 dB −2.2

B&C5NDL38

£82.81 · 172% more

Fs80 Hz −18%

Qts0.36 –

Vas4.3 L +105%

BL9.2 T·m −8%

Xmax3.5 mm +11%

Sensitivity89.8 dB +0.8

B&C5MDN38

£83.38 · 174% more

Fs175 Hz +79%

Qts0.31 −16%

Vas1.4 L −33%

BL11.1 T·m +11%

Xmax3.5 mm +11%

Sensitivity95.2 dB +6.2

Scanspeak10F/8424G00

£85.38 · 180% more

Fs90 Hz −8%

Qts0.37 –

Vas2.1 L –

BL4.8 T·m −52%

Xmax2.6 mm −17%

Sensitivity87.8 dB −1.2

WavecorWF120BD11

£88.41 · 190% more

Fs58 Hz −41%

Qts0.39 +5%

Vas3.8 L +81%

BL4.2 T·m −58%

Xmax3 mm −5%

Sensitivity84.7 dB −4.3

Beyma5G40ND

£92.39 · 203% more

Fs140 Hz +43%

Qts0.45 +22%

Vas1.4 L −33%

BL10 T·m –

Xmax3 mm −5%

Sensitivity90.6 dB +1.6

BMS5CN160

£179.77 · 490% more

Fs100 Hz –

Qts0.36 –

Vas2.1 L –

BL10 T·m –

Xmax5 mm +59%

Sensitivity89.1 dB –

SEASE0044-08S W12CY003

£204.86 · 572% more

Fs60 Hz −39%

Qts0.36 –

Vas4 L +90%

BL5.5 T·m −45%

Xmax3 mm −5%

Sensitivity85 dB −4

Scanspeak12M/4631G00

£247.55 · 712% more

Fs75 Hz −23%

Qts0.33 −11%

Vas2.3 L +10%

BL5.3 T·m −47%

Xmax3 mm −5%

Sensitivity86.5 dB −2.5

SEASE0021-08S W12CY001

£341.46 · 1020% more

Fs45 Hz −54%

Qts0.36 –

Vas6 L +186%

BL5.4 T·m −46%

Xmax3 mm −5%

Sensitivity83.2 dB −5.8

SEASE0070-08 W12CY004

£384.15 · 1160% more

Fs48 Hz −51%

Qts0.38 –

Vas4.6 L +119%

BL5.9 T·m −41%

Xmax3 mm −5%

Sensitivity83 dB −6

Tang BandW3-1750SB

No current price

Fs50 Hz −49%

Qts0.37 –

Vas1.7 L −21%

BL8.0 T·m −20%

Xmax5 mm +59%

Sensitivity79.3 dB −9.7

WavecorWF120BD12

No current price

Fs57 Hz −42%

Qts0.38 –

Vas3.9 L +86%

BL4.2 T·m −58%

Xmax3 mm −5%

Sensitivity84.5 dB −4.5

AccutonBD90-6-727

No current price

Fs123 Hz +26%

Qts0.28 −24%

Vas1.6 L −24%

BL10.7 T·m +7%

Xmax3 mm −5%

Sensitivity92 dB +3

Tang BandW3-1401SD

No current price

Fs75 Hz −23%

Qts0.31 −16%

Vas1.6 L −21%

BL5.6 T·m −44%

Xmax3.5 mm +11%

Sensitivity84.7 dB −4.3

Tang BandW4-1320SJF

No current price

Fs75 Hz −23%

Qts0.38 –

Vas5.2 L +149%

BL5.1 T·m −49%

Xmax3 mm −5%

Sensitivity88.9 dB –

Tang BandW4-992SD

No current price

Fs55 Hz −44%

Qts0.35 −5%

Vas5.7 L +172%

BL6.4 T·m −36%

Xmax3.5 mm +11%

Sensitivity85.8 dB −3.2

CIARENDI3.21

No current price

Fs90 Hz −8%

Qts0.38 –

Vas1.8 L −14%

BL4 T·m −60%

Xmax2 mm −37%

Sensitivity86.8 dB −2.2

No photo

PHL Audio900

No current price

Fs65 Hz −34%

Qts0.37 –

Vas7.8 L +271%

BL8 T·m −20%

Xmax6.5 mm +106%

Sensitivity89.2 dB –

Tang BandW5-704D

No current price

Fs55 Hz −44%

Qts0.38 –

Vas11.6 L +451%

BL6.2 T·m −38%

Xmax3.3 mm +5%

Sensitivity88.2 dB −0.8

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

UK shops, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lautsprecherteile Checked 2 Oct 2026 · 16 Ω · Source: inc VAT	£30.48, the lowest price		16 in stock	Visit shop at Lautsprecherteile

Best price over time

Tracked since 1 Oct

bits00 AUDIO

4-inch LF driver · 25 mm voice coil · 40 W

REDCATT 41NFR 16Ω

16 Ω

£30.48

Lautsprecherteile · 16 in stock · All 1 offer

Open in 00 Simulator

Fs: 98Hz
Xmax: 3.1mm
SPL: 89dB
Pe: 40W
BL: 10T·m
Vd: 18cm³
Qts: 0.37
Vas: 2L

See all 25 specs

Specifications

Published by REDCATT

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 98Hz
Qts: 0.37
Qes: 0.40
Qms: 5.0
Vas: 2.1L
Re: 12.2Ω
Le: 0.58mH

Motor and cone

BL: 10T·m
Sd: 57cm²
Mms: 5g
Xmax: 3.1mm
Vd †: 18cm³
Voice coil: 25mm

Power and response

Sensitivity †: 89dB
Manufacturer sensitivity: 90.3dB
Power: 40W
Impedance: 16Ω
EBP †: 245 · Leans vented

Size and mounting

Diameter: 104.5mm
Cutout: 92.2mm
Bolt circle: 106.3mm
Weight: 0.54kg

Other published values

Xmech: 8.15
Power Peak: 160

Other dimensions

Mounting Depth: 51.2

Sensitivity shows 89.0 dB, calculated from the T/S values. REDCATT publishes 90.3 dB, 1.3 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else REDCATT lists

LF · Primary · 4″

BL: 10T·m
Fs: 98Hz
Le: 0.58mH
Re: 12.2Ω
Sd: 57cm²
Mms: 5g
Qes: 0.40
Qms: 5.0
Qts: 0.37
SPL: 89dB
Vas: 2.1L
Xmax: 3.1mm
Xmech: 8.15
Power: 40W
Impedance: 16Ω
Power Peak: 160
Sensitivity: 90.3dB
Calculated sensitivity †: 89dB
Manufacturer sensitivity: 90.3dB
Voice coil: 25mm
Weight: 0.54kg
Diameter: 104.5mm
Mounting Depth: 51.2
Cutout: 92.2mm
Bolt circle: 106.3mm

Compare

Same-size drivers, compared with the 41NFR. Clear differences are green when better and red when worse.

This driver41NFR

Best price

£30.48

98 Hz

Qts

0.37

Vas

2.1 L

10 T·m

Xmax

3.1 mm

Sensitivity

89 dB

Power

40 W

REDCATT5FHW

£16.17 · 47% less

Fs50 Hz −49%

Qts0.35 −5%

Vas6.5 L +212%

BL6.5 T·m −35%

Xmax3.2 mm –

Sensitivity85.4 dB −3.6

HiViM5N

£18.88 · 38% less

Fs47 Hz −52%

Qts0.35 −5%

Vas11.3 L +438%

BL7.5 T·m −25%

Xmax2.7 mm −14%

Sensitivity87 dB −2

Dayton AudioDSA90-8

£20.39 · 33% less

Fs67 Hz −32%

Qts0.37 –

Vas2.3 L +8%

BL4.6 T·m −54%

Xmax2.5 mm −21%

Sensitivity83.8 dB −5.2

FaitalPRO4FE42

£29.42 · 3% less

Fs110 Hz +12%

Qts0.38 –

Vas1.8 L −14%

BL5.4 T·m −46%

Xmax2.8 mm −10%

Sensitivity89.8 dB +0.8

Tang BandW3-881SJF

£30.74 · Same price

Fs100 Hz –

Qts0.39 +5%

Vas1.9 L −10%

BL4.5 T·m −55%

Xmax0.5 mm −84%

Sensitivity88.7 dB –

LavoceFSN041.00

£34.72 · 14% more

Fs114 Hz +16%

Qts0.38 –

Vas1.8 L −12%

BL6.9 T·m −31%

Xmax2.2 mm −30%

Sensitivity90 dB +1

CIAREPWA5.38

£37.58 · 23% more

Fs78 Hz −20%

Qts0.37 –

Vas4.5 L +114%

BL8.9 T·m −11%

Xmax3.9 mm +24%

Sensitivity89.2 dB –

B&C5FG44

£38.00 · 25% more

Fs70 Hz −29%

Qts0.39 +5%

Vas5.1 L +143%

BL11.6 T·m +16%

Xmax3 mm −5%

Sensitivity88.4 dB −0.6

Tang BandW4-1320SIF

£58.91 · 93% more

Fs75 Hz −23%

Qts0.36 –

Vas5.2 L +149%

BL5.3 T·m −47%

Xmax3 mm −5%

Sensitivity89.2 dB –

Sica5 NR 1.5 PL

£65.06 · 113% more

Fs61 Hz −38%

Qts0.35 −5%

Vas7.4 L +252%

BL6.7 T·m −34%

Xmax3.5 mm +11%

Sensitivity88.4 dB −0.6

WavecorWF118WA01

£77.95 · 156% more

Fs64 Hz −35%

Qts0.36 –

Vas4.3 L +105%

BL4.6 T·m −54%

Xmax3 mm −5%

Sensitivity86.8 dB −2.2

B&C5NDL38

£82.81 · 172% more

Fs80 Hz −18%

Qts0.36 –

Vas4.3 L +105%

BL9.2 T·m −8%

Xmax3.5 mm +11%

Sensitivity89.8 dB +0.8

B&C5MDN38

£83.38 · 174% more

Fs175 Hz +79%

Qts0.31 −16%

Vas1.4 L −33%

BL11.1 T·m +11%

Xmax3.5 mm +11%

Sensitivity95.2 dB +6.2

Scanspeak10F/8424G00

£85.38 · 180% more

Fs90 Hz −8%

Qts0.37 –

Vas2.1 L –

BL4.8 T·m −52%

Xmax2.6 mm −17%

Sensitivity87.8 dB −1.2

WavecorWF120BD11

£88.41 · 190% more

Fs58 Hz −41%

Qts0.39 +5%

Vas3.8 L +81%

BL4.2 T·m −58%

Xmax3 mm −5%

Sensitivity84.7 dB −4.3

Beyma5G40ND

£92.39 · 203% more

Fs140 Hz +43%

Qts0.45 +22%

Vas1.4 L −33%

BL10 T·m –

Xmax3 mm −5%

Sensitivity90.6 dB +1.6

BMS5CN160

£179.77 · 490% more

Fs100 Hz –

Qts0.36 –

Vas2.1 L –

BL10 T·m –

Xmax5 mm +59%

Sensitivity89.1 dB –

SEASE0044-08S W12CY003

£204.86 · 572% more

Fs60 Hz −39%

Qts0.36 –

Vas4 L +90%

BL5.5 T·m −45%

Xmax3 mm −5%

Sensitivity85 dB −4

Scanspeak12M/4631G00

£247.55 · 712% more

Fs75 Hz −23%

Qts0.33 −11%

Vas2.3 L +10%

BL5.3 T·m −47%

Xmax3 mm −5%

Sensitivity86.5 dB −2.5

SEASE0021-08S W12CY001

£341.46 · 1020% more

Fs45 Hz −54%

Qts0.36 –

Vas6 L +186%

BL5.4 T·m −46%

Xmax3 mm −5%

Sensitivity83.2 dB −5.8

SEASE0070-08 W12CY004

£384.15 · 1160% more

Fs48 Hz −51%

Qts0.38 –

Vas4.6 L +119%

BL5.9 T·m −41%

Xmax3 mm −5%

Sensitivity83 dB −6

Tang BandW3-1750SB

No current price

Fs50 Hz −49%

Qts0.37 –

Vas1.7 L −21%

BL8.0 T·m −20%

Xmax5 mm +59%

Sensitivity79.3 dB −9.7

WavecorWF120BD12

No current price

Fs57 Hz −42%

Qts0.38 –

Vas3.9 L +86%

BL4.2 T·m −58%

Xmax3 mm −5%

Sensitivity84.5 dB −4.5

AccutonBD90-6-727

No current price

Fs123 Hz +26%

Qts0.28 −24%

Vas1.6 L −24%

BL10.7 T·m +7%

Xmax3 mm −5%

Sensitivity92 dB +3

Tang BandW3-1401SD

No current price

Fs75 Hz −23%

Qts0.31 −16%

Vas1.6 L −21%

BL5.6 T·m −44%

Xmax3.5 mm +11%

Sensitivity84.7 dB −4.3

Tang BandW4-1320SJF

No current price

Fs75 Hz −23%

Qts0.38 –

Vas5.2 L +149%

BL5.1 T·m −49%

Xmax3 mm −5%

Sensitivity88.9 dB –

Tang BandW4-992SD

No current price

Fs55 Hz −44%

Qts0.35 −5%

Vas5.7 L +172%

BL6.4 T·m −36%

Xmax3.5 mm +11%

Sensitivity85.8 dB −3.2

CIARENDI3.21

No current price

Fs90 Hz −8%

Qts0.38 –

Vas1.8 L −14%

BL4 T·m −60%

Xmax2 mm −37%

Sensitivity86.8 dB −2.2

No photo

PHL Audio900

No current price

Fs65 Hz −34%

Qts0.37 –

Vas7.8 L +271%

BL8 T·m −20%

Xmax6.5 mm +106%

Sensitivity89.2 dB –

Tang BandW5-704D

No current price

Fs55 Hz −44%

Qts0.38 –

Vas11.6 L +451%

BL6.2 T·m −38%

Xmax3.3 mm +5%

Sensitivity88.2 dB −0.8

Search similar

Tune the match

Choose the published values that matter to your design. Size stays matched to this driver.

Qts

Qes

Vas

Xmax

Where to buy

UK shops, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Lautsprecherteile Checked 2 Oct 2026 · 16 Ω · Source: inc VAT	£30.48, the lowest price		16 in stock	Visit shop at Lautsprecherteile

Best price over time

Tracked since 1 Oct