2-inch LF driver · FSN021 series · 25 mm voice coil · 25 W

Lavoce FSN021.02 8Ω

Name: Lavoce FSN021.02 8 Ohm
Brand: Lavoce
SKU: FSN021.02

8 Ω · 140–20000 Hz

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 151Hz
Xmax: 2.3mm
SPL: 83dB
Pe: 25W
BL: 3.4T·m
Vd: 4cm³
Qts: 0.68
Vas: 0.3L

See all 24 specs

Specifications

Published by Lavoce

Manufacturer page

Lavoce FSN021.02 is a 2-inch 8 ohm LF driver rated at 25 W RMS. The validated T/S data includes Fs 151 Hz, Qts 0.68, Vas 0.3 L, Xmax 2.3 mm, sensitivity 83.3 dB, plus 4 cm³ Vd and 196 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: 151Hz
Qts: 0.68
Qes: 0.77
Qms: 5.5
Vas: 0.3L
Re: 5.7Ω
Le: 0.10mH

Motor and cone

BL: 3.4T·m
Sd: 18cm²
Mms: 2g
Xmax: 2.3mm
Vd †: 4cm³
Voice coil: 25mm

Power and response

Sensitivity †: 83.3dB
Manufacturer sensitivity: 85dB
Power: 25W
Impedance: 8Ω
Min. impedance: 6Ω
Range: 140–20000Hz
EBP †: 196 · Leans vented

Size and mounting

Weight: 0.15kg

Other published values

Cms: 0.65mm/N
Xmech: 3.3
Power Program: 50

Sensitivity shows 83.3 dB, calculated from the T/S values. Lavoce publishes 85.0 dB, 1.7 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Lavoce lists

LF · Primary · 2″

BL: 3.4T·m
Fs: 151Hz
Le: 0.10mH
Re: 5.7Ω
Sd: 18cm²
Cms: 0.65mm/N
Mms: 2g
Qes: 0.77
Qms: 5.5
Qts: 0.68
SPL: 83.3dB
Vas: 0.3L
Xmax: 2.3mm
Xmech: 3.3
Power: 25W
Impedance: 8Ω
Sensitivity: 85dB
Low limit: 140Hz
Power Program: 50
Calculated sensitivity †: 83.3dB
High limit: 20000Hz
Manufacturer sensitivity: 85dB
Min. impedance: 6Ω
Voice coil: 25mm
Weight: 0.15kg

Compare

Same-size drivers, compared with the FSN021.02. Clear differences are green when better and red when worse.

This driverFSN021.02

Best price

–

151 Hz

Qts

0.68

Vas

0.3 L

3.4 T·m

Xmax

2.3 mm

Sensitivity

83.3 dB

Power

25 W

FaitalPRO3FE25

£8.68

Fs110 Hz −27%

Qts0.66 –

Vas1.3 L +333%

BL3.6 T·m +5%

Xmax1.8 mm −20%

Sensitivity85.4 dB +2.1

Dayton AudioCE70PR-4

£9.96

Fs109 Hz −28%

Qts0.63 −7%

Vas0.5 L +74%

BL3.1 T·m −10%

Xmax4 mm +74%

Sensitivity81.5 dB −1.8

LavoceFSF030.70

£10.04

Fs123 Hz −19%

Qts0.77 +13%

Vas1.2 L +290%

BL3.5 T·m –

Xmax2.1 mm −9%

Sensitivity85.9 dB +2.6

REDCATT21NFR

£11.13

Fs157 Hz +4%

Qts0.68 –

Vas0.25 L −17%

BL4.4 T·m +28%

Xmax1.2 mm −48%

Sensitivity82.7 dB −0.6

Dayton AudioPC68-8

£11.26

Fs109 Hz −28%

Qts0.64 −6%

Vas1.3 L +333%

BL3.3 T·m −4%

Xmax2 mm −13%

Sensitivity84.8 dB +1.5

Dayton AudioPC68-4

£11.26

Fs117 Hz −22%

Qts0.65 −4%

Vas0.7 L +133%

BL2.4 T·m −30%

Xmax2 mm −13%

Sensitivity83.1 dB –

Dayton AudioDMA45-8

£11.35

Fs151 Hz –

Qts0.59 −13%

Vas0.057 L −81%

BL4.3 T·m +24%

Xmax2 mm −13%

Sensitivity76.6 dB −6.7

VisatonFRS 5 X

£11.52

Fs190 Hz +26%

Qts0.70 –

Vas0.23 L −23%

BL2.7 T·m −22%

Xmax0.25 mm −89%

Sensitivity84.6 dB +1.3

FaitalPRO2FE24

£12.05

Fs170 Hz +13%

Qts0.94 +38%

Vas0.3 L –

BL3.5 T·m –

Xmax1.8 mm −24%

Sensitivity82.9 dB –

Dayton AudioPC83-8

£13.10

Fs82 Hz −46%

Qts0.63 −7%

Vas1.7 L +466%

BL3.5 T·m –

Xmax2 mm −13%

Sensitivity83 dB –

VisatonFRS 5 XTS

£15.53

Fs190 Hz +26%

Qts0.70 –

Vas0.23 L −23%

BL2.7 T·m −22%

Xmax0.25 mm −89%

Sensitivity84.6 dB +1.3

REDCATT25NFR

£19.63

Fs123 Hz −19%

Qts0.71 +4%

Vas0.46 L +53%

BL4 T·m +16%

Xmax2.6 mm +15%

Sensitivity82.3 dB −1

MonacorSPX-30M

£20.10

Fs100 Hz −34%

Qts0.71 +4%

Vas1.8 L +500%

BL3.0 T·m −11%

Xmax1.1 mm −52%

Sensitivity85.1 dB +1.8

LavoceFSN030.71

£24.69

Fs134 Hz −11%

Qts0.67 –

Vas1.0 L +247%

BL3.8 T·m +11%

Xmax2.1 mm −9%

Sensitivity87.3 dB +4

Dayton AudioND65-8

£25.04

Fs102 Hz −32%

Qts0.65 −4%

Vas0.36 L +20%

BL4.2 T·m +22%

Xmax3.5 mm +52%

Sensitivity79.3 dB −4

SB AcousticsSB65WBAC25-4

£25.12

Fs115 Hz −24%

Qts0.68 –

Vas0.43 L +43%

BL2.9 T·m −16%

Xmax2.6 mm +15%

Sensitivity81.3 dB −2

Tang BandW3-871SC

£30.90

Fs110 Hz −27%

Qts0.59 −13%

Vas1.6 L +450%

BL3.5 T·m –

Xmax0.5 mm −78%

Sensitivity86.9 dB +3.6

Tang BandW2-2136S

£33.66

Fs120 Hz −21%

Qts0.31 −54%

Vas0.26 L −13%

BL3.7 T·m +8%

Xmax2 mm −13%

Sensitivity82.6 dB −0.7

FountekFR58EX

£37.60

Fs134 Hz −11%

Qts0.55 −19%

Vas0.01 L −97%

BL3.4 T·m –

Xmax2.9 mm +26%

Sensitivity67.5 dB −15.8

Tang BandW3-1364SA

£50.24

Fs105 Hz −30%

Qts0.59 −13%

Vas1.9 L +527%

BL3.1 T·m −8%

Xmax0.5 mm −78%

Sensitivity86.5 dB +3.2

Scanspeak5F/8422T01

£53.50

Fs93 Hz −38%

Qts0.61 −10%

Vas0.5 L +67%

BL3.1 T·m −10%

Xmax2 mm −13%

Sensitivity79.7 dB −3.6

ScanspeakD8404/552000

£2,428.16

Fs280 Hz +85%

Qts0.69 –

Vas0.27 L −10%

BL6.1 T·m +77%

Xmax2.4 mm +4%

Sensitivity90.6 dB +7.3

Dayton AudioCE58N-10

No current price

Fs177 Hz +17%

Qts0.69 –

Vas0.16 L −47%

BL4.2 T·m +21%

Xmax2.1 mm −9%

Sensitivity82 dB −1.3

LavoceFSN020.71F

No current price

Fs212 Hz +40%

Qts0.82 +21%

Vas0.22 L −27%

BL3.2 T·m −6%

Xmax2.4 mm +4%

Sensitivity85.5 dB +2.2

WavecorFR084WA02

No current price

Fs109 Hz −28%

Qts0.79 +16%

Vas1.1 L +280%

BL3.6 T·m +6%

Xmax2.5 mm +9%

Sensitivity84 dB +0.7

PeerlessPLS-75F25AL02-08

No current price

Fs100 Hz −34%

Qts0.74 +9%

Vas1.1 L +260%

BL3.6 T·m +4%

Xmax3.4 mm +47%

Sensitivity83.1 dB –

Tang BandW3-532SQF

No current price

Fs100 Hz −34%

Qts0.72 +6%

Vas1.5 L +413%

BL3.2 T·m −6%

Xmax0.5 mm −78%

Sensitivity84.5 dB +1.2

Tang BandW3-532SQ

No current price

Fs100 Hz −34%

Qts0.61 −10%

Vas1.7 L +460%

BL3.5 T·m –

Xmax0.2 mm −91%

Sensitivity85.9 dB +2.6

LavoceFSN020.72

No current price

Fs210 Hz +39%

Qts0.92 +35%

Vas0.18 L −40%

BL3.2 T·m −7%

Xmax2.3 mm –

Sensitivity83.6 dB –

Tang BandW3-582A

No current price

Fs100 Hz −34%

Qts0.60 −12%

Vas1.8 L +490%

BL3.6 T·m +3%

Xmax0.25 mm −89%

Sensitivity86.2 dB +2.9

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

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Blue Aran Checked 24 Oct 2026 · 8 Ω · Source: inc VAT · 20% 3-5 months	£18.06		Usually available in 3-5 months	Visit shop at Blue Aran

bits00 AUDIO

2-inch LF driver · FSN021 series · 25 mm voice coil · 25 W

Lavoce FSN021.02 8Ω

8 Ω · 140–20000 Hz

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 151Hz
Xmax: 2.3mm
SPL: 83dB
Pe: 25W
BL: 3.4T·m
Vd: 4cm³
Qts: 0.68
Vas: 0.3L

See all 24 specs

Specifications

Published by Lavoce

Manufacturer page

The published T/S values agree with each other

Thiele/Small

Fs: 151Hz
Qts: 0.68
Qes: 0.77
Qms: 5.5
Vas: 0.3L
Re: 5.7Ω
Le: 0.10mH

Motor and cone

BL: 3.4T·m
Sd: 18cm²
Mms: 2g
Xmax: 2.3mm
Vd †: 4cm³
Voice coil: 25mm

Power and response

Sensitivity †: 83.3dB
Manufacturer sensitivity: 85dB
Power: 25W
Impedance: 8Ω
Min. impedance: 6Ω
Range: 140–20000Hz
EBP †: 196 · Leans vented

Size and mounting

Weight: 0.15kg

Other published values

Cms: 0.65mm/N
Xmech: 3.3
Power Program: 50

Sensitivity shows 83.3 dB, calculated from the T/S values. Lavoce publishes 85.0 dB, 1.7 dB apart.

† Calculated by bits from the published values

What this validation status means

Everything else Lavoce lists

LF · Primary · 2″

BL: 3.4T·m
Fs: 151Hz
Le: 0.10mH
Re: 5.7Ω
Sd: 18cm²
Cms: 0.65mm/N
Mms: 2g
Qes: 0.77
Qms: 5.5
Qts: 0.68
SPL: 83.3dB
Vas: 0.3L
Xmax: 2.3mm
Xmech: 3.3
Power: 25W
Impedance: 8Ω
Sensitivity: 85dB
Low limit: 140Hz
Power Program: 50
Calculated sensitivity †: 83.3dB
High limit: 20000Hz
Manufacturer sensitivity: 85dB
Min. impedance: 6Ω
Voice coil: 25mm
Weight: 0.15kg

Compare

Same-size drivers, compared with the FSN021.02. Clear differences are green when better and red when worse.

This driverFSN021.02

Best price

–

151 Hz

Qts

0.68

Vas

0.3 L

3.4 T·m

Xmax

2.3 mm

Sensitivity

83.3 dB

Power

25 W

FaitalPRO3FE25

£8.68

Fs110 Hz −27%

Qts0.66 –

Vas1.3 L +333%

BL3.6 T·m +5%

Xmax1.8 mm −20%

Sensitivity85.4 dB +2.1

Dayton AudioCE70PR-4

£9.96

Fs109 Hz −28%

Qts0.63 −7%

Vas0.5 L +74%

BL3.1 T·m −10%

Xmax4 mm +74%

Sensitivity81.5 dB −1.8

LavoceFSF030.70

£10.04

Fs123 Hz −19%

Qts0.77 +13%

Vas1.2 L +290%

BL3.5 T·m –

Xmax2.1 mm −9%

Sensitivity85.9 dB +2.6

REDCATT21NFR

£11.13

Fs157 Hz +4%

Qts0.68 –

Vas0.25 L −17%

BL4.4 T·m +28%

Xmax1.2 mm −48%

Sensitivity82.7 dB −0.6

Dayton AudioPC68-8

£11.26

Fs109 Hz −28%

Qts0.64 −6%

Vas1.3 L +333%

BL3.3 T·m −4%

Xmax2 mm −13%

Sensitivity84.8 dB +1.5

Dayton AudioPC68-4

£11.26

Fs117 Hz −22%

Qts0.65 −4%

Vas0.7 L +133%

BL2.4 T·m −30%

Xmax2 mm −13%

Sensitivity83.1 dB –

Dayton AudioDMA45-8

£11.35

Fs151 Hz –

Qts0.59 −13%

Vas0.057 L −81%

BL4.3 T·m +24%

Xmax2 mm −13%

Sensitivity76.6 dB −6.7

VisatonFRS 5 X

£11.52

Fs190 Hz +26%

Qts0.70 –

Vas0.23 L −23%

BL2.7 T·m −22%

Xmax0.25 mm −89%

Sensitivity84.6 dB +1.3

FaitalPRO2FE24

£12.05

Fs170 Hz +13%

Qts0.94 +38%

Vas0.3 L –

BL3.5 T·m –

Xmax1.8 mm −24%

Sensitivity82.9 dB –

Dayton AudioPC83-8

£13.10

Fs82 Hz −46%

Qts0.63 −7%

Vas1.7 L +466%

BL3.5 T·m –

Xmax2 mm −13%

Sensitivity83 dB –

VisatonFRS 5 XTS

£15.53

Fs190 Hz +26%

Qts0.70 –

Vas0.23 L −23%

BL2.7 T·m −22%

Xmax0.25 mm −89%

Sensitivity84.6 dB +1.3

REDCATT25NFR

£19.63

Fs123 Hz −19%

Qts0.71 +4%

Vas0.46 L +53%

BL4 T·m +16%

Xmax2.6 mm +15%

Sensitivity82.3 dB −1

MonacorSPX-30M

£20.10

Fs100 Hz −34%

Qts0.71 +4%

Vas1.8 L +500%

BL3.0 T·m −11%

Xmax1.1 mm −52%

Sensitivity85.1 dB +1.8

LavoceFSN030.71

£24.69

Fs134 Hz −11%

Qts0.67 –

Vas1.0 L +247%

BL3.8 T·m +11%

Xmax2.1 mm −9%

Sensitivity87.3 dB +4

Dayton AudioND65-8

£25.04

Fs102 Hz −32%

Qts0.65 −4%

Vas0.36 L +20%

BL4.2 T·m +22%

Xmax3.5 mm +52%

Sensitivity79.3 dB −4

SB AcousticsSB65WBAC25-4

£25.12

Fs115 Hz −24%

Qts0.68 –

Vas0.43 L +43%

BL2.9 T·m −16%

Xmax2.6 mm +15%

Sensitivity81.3 dB −2

Tang BandW3-871SC

£30.90

Fs110 Hz −27%

Qts0.59 −13%

Vas1.6 L +450%

BL3.5 T·m –

Xmax0.5 mm −78%

Sensitivity86.9 dB +3.6

Tang BandW2-2136S

£33.66

Fs120 Hz −21%

Qts0.31 −54%

Vas0.26 L −13%

BL3.7 T·m +8%

Xmax2 mm −13%

Sensitivity82.6 dB −0.7

FountekFR58EX

£37.60

Fs134 Hz −11%

Qts0.55 −19%

Vas0.01 L −97%

BL3.4 T·m –

Xmax2.9 mm +26%

Sensitivity67.5 dB −15.8

Tang BandW3-1364SA

£50.24

Fs105 Hz −30%

Qts0.59 −13%

Vas1.9 L +527%

BL3.1 T·m −8%

Xmax0.5 mm −78%

Sensitivity86.5 dB +3.2

Scanspeak5F/8422T01

£53.50

Fs93 Hz −38%

Qts0.61 −10%

Vas0.5 L +67%

BL3.1 T·m −10%

Xmax2 mm −13%

Sensitivity79.7 dB −3.6

ScanspeakD8404/552000

£2,428.16

Fs280 Hz +85%

Qts0.69 –

Vas0.27 L −10%

BL6.1 T·m +77%

Xmax2.4 mm +4%

Sensitivity90.6 dB +7.3

Dayton AudioCE58N-10

No current price

Fs177 Hz +17%

Qts0.69 –

Vas0.16 L −47%

BL4.2 T·m +21%

Xmax2.1 mm −9%

Sensitivity82 dB −1.3

LavoceFSN020.71F

No current price

Fs212 Hz +40%

Qts0.82 +21%

Vas0.22 L −27%

BL3.2 T·m −6%

Xmax2.4 mm +4%

Sensitivity85.5 dB +2.2

WavecorFR084WA02

No current price

Fs109 Hz −28%

Qts0.79 +16%

Vas1.1 L +280%

BL3.6 T·m +6%

Xmax2.5 mm +9%

Sensitivity84 dB +0.7

PeerlessPLS-75F25AL02-08

No current price

Fs100 Hz −34%

Qts0.74 +9%

Vas1.1 L +260%

BL3.6 T·m +4%

Xmax3.4 mm +47%

Sensitivity83.1 dB –

Tang BandW3-532SQF

No current price

Fs100 Hz −34%

Qts0.72 +6%

Vas1.5 L +413%

BL3.2 T·m −6%

Xmax0.5 mm −78%

Sensitivity84.5 dB +1.2

Tang BandW3-532SQ

No current price

Fs100 Hz −34%

Qts0.61 −10%

Vas1.7 L +460%

BL3.5 T·m –

Xmax0.2 mm −91%

Sensitivity85.9 dB +2.6

LavoceFSN020.72

No current price

Fs210 Hz +39%

Qts0.92 +35%

Vas0.18 L −40%

BL3.2 T·m −7%

Xmax2.3 mm –

Sensitivity83.6 dB –

Tang BandW3-582A

No current price

Fs100 Hz −34%

Qts0.60 −12%

Vas1.8 L +490%

BL3.6 T·m +3%

Xmax0.25 mm −89%

Sensitivity86.2 dB +2.9

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

Prices for delivery to the UK, including VAT. How prices work

Watch price

Shop	Price	Against the lowest	Stock	Link
Blue Aran Checked 24 Oct 2026 · 8 Ω · Source: inc VAT · 20% 3-5 months	£18.06		Usually available in 3-5 months	Visit shop at Blue Aran