6-inch LF driver · 50 W

Tang Band W6-1721 4Ω

Name: Tang Band W6-1721 4 Ohm
Brand: Tang Band
SKU: W6-1721

4 Ω

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 40Hz
Xmax: 8mm
SPL: 88dB
Pe: 50W
BL: 5.1T·m
Vd: 112cm³
Qts: 0.43
Vas: 29L

See all 18 specs

Curve provenanceInspect 2 traces

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

spl
Frequency response
Trace datasheet-response-trace-poc/v1
240 plotted pointsMedium confidence717 selected pixels of 2,297
Manufacturer datasheet, page 1
impedance
Impedance response
Trace datasheet-response-trace-poc/v1
240 plotted pointsMedium confidence2,043 selected pixels of 2,614
Manufacturer datasheet, page 1

Specifications

Published by Tang Band

Manufacturer page

Datasheet PDF

Tang Band W6-1721 is a 6-inch 4 ohm LF driver rated at 50 W RMS. The validated T/S data includes Fs 40 Hz, Qts 0.43, Vas 29.4 L, Xmax 8 mm, sensitivity 87.9 dB, plus 112 cm³ Vd and 82 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: 40Hz
Qts: 0.43
Qes: 0.49
Qms: 3.6
Vas: 29.4L
Re: 3.4Ω
Le: 0.08mH

Motor and cone

BL: 5.1T·m
Sd: 140cm²
Mms: 15g
Xmax: 8mm
Vd †: 112cm³

Power and response

Sensitivity †: 87.9dB
Manufacturer sensitivity: 88dB
Power: 50W
Impedance: 4Ω
EBP †: 82 · Sealed or vented

Other published values

Power Peak: 100

† Calculated by bits from the published values

What this validation status means

Everything else Tang Band lists

LF · Primary · 6″

BL: 5.1T·m
Fs: 40Hz
Le: 0.08mH
Re: 3.4Ω
Sd: 140cm²
Mms: 15g
Qes: 0.49
Qms: 3.6
Qts: 0.43
SPL: 87.9dB
Vas: 29.4L
Xmax: 8mm
Power: 50W
Impedance: 4Ω
Power Peak: 100
Sensitivity: 88dB
Calculated sensitivity †: 87.9dB
Manufacturer sensitivity: 88dB

Compare

Same-size drivers, compared with the W6-1721. Clear differences are green when better and red when worse.

This driverW6-1721

Best price

–

40 Hz

Qts

0.43

Vas

29.4 L

5.1 T·m

Xmax

8 mm

Sensitivity

87.9 dB

Power

50 W

SB AcousticsSB16PFCR25-8

£24.27

Fs38 Hz −5%

Qts0.40 −7%

Vas27 L −8%

BL6.2 T·m +21%

Xmax4.5 mm −44%

Sensitivity86.9 dB −1

MonacorSP-167E

£26.12

Fs62 Hz +55%

Qts0.41 −5%

Vas17.9 L −39%

BL5.4 T·m +6%

Xmax2.5 mm −69%

Sensitivity91.5 dB +3.6

SB AcousticsSB16PFC25-8

£27.08

Fs38 Hz −5%

Qts0.40 −7%

Vas27 L −8%

BL6.2 T·m +21%

Xmax4.5 mm −44%

Sensitivity86.9 dB −1

SB AcousticsSB16FRPC25-7

£30.52

Fs44 Hz +10%

Qts0.46 +7%

Vas31 L +6%

BL5.4 T·m +5%

Xmax3.0 mm −62%

Sensitivity89.4 dB +1.5

VisatonW 170 S

£33.48

Fs36 Hz −10%

Qts0.41 −5%

Vas38 L +29%

BL4.4 T·m −14%

Xmax4.3 mm −47%

Sensitivity87.4 dB −0.5

PeerlessHDS-P835025

£37.03

Fs43 Hz +8%

Qts0.42 –

Vas19 L −35%

BL8.6 T·m +68%

Xmax7.4 mm −8%

Sensitivity87.1 dB −0.8

SB AcousticsSB17NRX2C35-8

£55.41

Fs37 Hz −9%

Qts0.42 –

Vas27 L −8%

BL6.3 T·m +22%

Xmax5.5 mm −31%

Sensitivity86.5 dB −1.4

SB AcousticsSB17NRX2C35-4

£55.41

Fs36 Hz −10%

Qts0.37 −14%

Vas27.6 L −6%

BL4.9 T·m −4%

Xmax5.5 mm −31%

Sensitivity87 dB −0.9

Scanspeak18W/4424G00

£58.61

Fs49 Hz +23%

Qts0.38 −12%

Vas24.1 L −18%

BL5.2 T·m –

Xmax2.8 mm −65%

Sensitivity90.3 dB +2.4

Dayton AudioRS180P-4

£59.83

Fs38 Hz −6%

Qts0.39 −9%

Vas27.3 L −7%

BL4.7 T·m −9%

Xmax6 mm −25%

Sensitivity86.9 dB −1

MonacorSPH-175HQ

£68.66

Fs39 Hz –

Qts0.42 –

Vas33 L +12%

BL6.4 T·m +25%

Xmax5.5 mm −31%

Sensitivity88 dB –

Scanspeak15M/4624G00

£70.29

Fs100 Hz +150%

Qts0.43 –

Vas3.7 L −87%

BL5.3 T·m +4%

Xmax1.5 mm −81%

Sensitivity91 dB +3.1

SB AcousticsSB17NAC35-8

£70.75

Fs32 Hz −21%

Qts0.42 –

Vas33 L +12%

BL6.2 T·m +21%

Xmax5.5 mm −31%

Sensitivity85.6 dB −2.3

MonacorSPH-170

£80.38

Fs38 Hz −5%

Qts0.44 –

Vas37 L +26%

BL5.9 T·m +15%

Xmax3 mm −63%

Sensitivity87.7 dB –

SEASH1217-08 CA18RLY

£90.62

Fs42 Hz +5%

Qts0.47 +9%

Vas32 L +9%

BL5.6 T·m +9%

Xmax5 mm −38%

Sensitivity88.3 dB –

WavecorWF166TU02

£96.50

Fs50 Hz +25%

Qts0.48 +12%

Vas22.3 L −24%

BL5 T·m –

Xmax3 mm −63%

Sensitivity89.5 dB +1.6

WavecorWF168WA01

£96.71

Fs48 Hz +19%

Qts0.43 –

Vas24.6 L −16%

BL5.1 T·m –

Xmax3 mm −63%

Sensitivity89.6 dB +1.7

WavecorWF168WA05

£102.24

Fs40 Hz –

Qts0.42 –

Vas27.7 L −6%

BL5 T·m –

Xmax3 mm −63%

Sensitivity88 dB –

MarkaudioALPAIR 12PW

£120.00

Fs38 Hz −4%

Qts0.39 −9%

Vas45.3 L +54%

BL5.3 T·m +4%

Xmax8.5 mm +6%

Sensitivity88.8 dB +0.9

Scanspeak15W/8534T00

£154.86

Fs32 Hz −20%

Qts0.39 −9%

Vas30 L –

BL5.5 T·m +7%

Xmax5 mm −38%

Sensitivity85.6 dB −2.3

SEASE0018-08S W18E001

£376.75

Fs34 Hz −15%

Qts0.42 –

Vas30 L –

BL6.6 T·m +29%

Xmax5 mm −38%

Sensitivity85.8 dB −2.1

SEASE0037-08S W15CH001

£385.12

Fs38 Hz −5%

Qts0.42 –

Vas14 L −52%

BL5.1 T·m –

Xmax4 mm −50%

Sensitivity83.9 dB −4

SEASE0076-08 W19NX001

£586.08

Fs34 Hz −15%

Qts0.41 −5%

Vas24 L −18%

BL8.3 T·m +62%

Xmax7 mm −13%

Sensitivity85.2 dB −2.7

AccutonAS190-9-251

£1,133.72

Fs33 Hz −17%

Qts0.44 –

Vas26.7 L −9%

BL13.5 T·m +164%

Xmax9 mm +13%

Sensitivity85.1 dB −2.8

WavecorWF168OM01

No current price

Fs39 Hz –

Qts0.45 +5%

Vas29.5 L –

BL4.8 T·m −6%

Xmax4.2 mm −48%

Sensitivity87.7 dB –

WavecorWF166TU01

No current price

Fs50 Hz +25%

Qts0.45 +5%

Vas23.2 L −21%

BL5.2 T·m –

Xmax3.5 mm −56%

Sensitivity89.9 dB +2

Tang BandW6-658I

No current price

Fs45 Hz +13%

Qts0.44 –

Vas28.3 L −4%

BL6.3 T·m +23%

Xmax4.1 mm −49%

Sensitivity89.2 dB +1.3

REDCATT61FHM-1

No current price

Fs35 Hz −13%

Qts0.53 +23%

Vas28.6 L –

BL5.0 T·m –

Xmax6.4 mm −20%

Sensitivity85.5 dB −2.4

Tang BandW6-789E

No current price

Fs50 Hz +25%

Qts0.46 +7%

Vas41.5 L +41%

BL5.1 T·m –

Xmax4.3 mm −47%

Sensitivity92.2 dB +4.3

Lii AudioFAST 6

No current price

Fs63 Hz +57%

Qts0.46 +6%

Vas22.9 L −22%

BL4.3 T·m −17%

Xmax6 mm −25%

Sensitivity92.5 dB +4.6

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
Audiophonics Checked 25 Oct 2026 · Ships from France · 4 Ω · Source: inc VAT · 20% Import VAT and duty may apply	£96.21		Available on order	Visit shop at Audiophonics

bits00 AUDIO

6-inch LF driver · 50 W

Tang Band W6-1721 4Ω

4 Ω

No price for delivery to the UK

All 1 offer

Open in 00 Simulator

Fs: 40Hz
Xmax: 8mm
SPL: 88dB
Pe: 50W
BL: 5.1T·m
Vd: 112cm³
Qts: 0.43
Vas: 29L

See all 18 specs

Curve provenanceInspect 2 traces

These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works

spl
Frequency response
Trace datasheet-response-trace-poc/v1
240 plotted pointsMedium confidence717 selected pixels of 2,297
Manufacturer datasheet, page 1
impedance
Impedance response
Trace datasheet-response-trace-poc/v1
240 plotted pointsMedium confidence2,043 selected pixels of 2,614
Manufacturer datasheet, page 1

Specifications

Published by Tang Band

Manufacturer page

Datasheet PDF

The published T/S values agree with each other

Thiele/Small

Fs: 40Hz
Qts: 0.43
Qes: 0.49
Qms: 3.6
Vas: 29.4L
Re: 3.4Ω
Le: 0.08mH

Motor and cone

BL: 5.1T·m
Sd: 140cm²
Mms: 15g
Xmax: 8mm
Vd †: 112cm³

Power and response

Sensitivity †: 87.9dB
Manufacturer sensitivity: 88dB
Power: 50W
Impedance: 4Ω
EBP †: 82 · Sealed or vented

Other published values

Power Peak: 100

† Calculated by bits from the published values

What this validation status means

Everything else Tang Band lists

LF · Primary · 6″

BL: 5.1T·m
Fs: 40Hz
Le: 0.08mH
Re: 3.4Ω
Sd: 140cm²
Mms: 15g
Qes: 0.49
Qms: 3.6
Qts: 0.43
SPL: 87.9dB
Vas: 29.4L
Xmax: 8mm
Power: 50W
Impedance: 4Ω
Power Peak: 100
Sensitivity: 88dB
Calculated sensitivity †: 87.9dB
Manufacturer sensitivity: 88dB

Compare

Same-size drivers, compared with the W6-1721. Clear differences are green when better and red when worse.

This driverW6-1721

Best price

–

40 Hz

Qts

0.43

Vas

29.4 L

5.1 T·m

Xmax

8 mm

Sensitivity

87.9 dB

Power

50 W

SB AcousticsSB16PFCR25-8

£24.27

Fs38 Hz −5%

Qts0.40 −7%

Vas27 L −8%

BL6.2 T·m +21%

Xmax4.5 mm −44%

Sensitivity86.9 dB −1

MonacorSP-167E

£26.12

Fs62 Hz +55%

Qts0.41 −5%

Vas17.9 L −39%

BL5.4 T·m +6%

Xmax2.5 mm −69%

Sensitivity91.5 dB +3.6

SB AcousticsSB16PFC25-8

£27.08

Fs38 Hz −5%

Qts0.40 −7%

Vas27 L −8%

BL6.2 T·m +21%

Xmax4.5 mm −44%

Sensitivity86.9 dB −1

SB AcousticsSB16FRPC25-7

£30.52

Fs44 Hz +10%

Qts0.46 +7%

Vas31 L +6%

BL5.4 T·m +5%

Xmax3.0 mm −62%

Sensitivity89.4 dB +1.5

VisatonW 170 S

£33.48

Fs36 Hz −10%

Qts0.41 −5%

Vas38 L +29%

BL4.4 T·m −14%

Xmax4.3 mm −47%

Sensitivity87.4 dB −0.5

PeerlessHDS-P835025

£37.03

Fs43 Hz +8%

Qts0.42 –

Vas19 L −35%

BL8.6 T·m +68%

Xmax7.4 mm −8%

Sensitivity87.1 dB −0.8

SB AcousticsSB17NRX2C35-8

£55.41

Fs37 Hz −9%

Qts0.42 –

Vas27 L −8%

BL6.3 T·m +22%

Xmax5.5 mm −31%

Sensitivity86.5 dB −1.4

SB AcousticsSB17NRX2C35-4

£55.41

Fs36 Hz −10%

Qts0.37 −14%

Vas27.6 L −6%

BL4.9 T·m −4%

Xmax5.5 mm −31%

Sensitivity87 dB −0.9

Scanspeak18W/4424G00

£58.61

Fs49 Hz +23%

Qts0.38 −12%

Vas24.1 L −18%

BL5.2 T·m –

Xmax2.8 mm −65%

Sensitivity90.3 dB +2.4

Dayton AudioRS180P-4

£59.83

Fs38 Hz −6%

Qts0.39 −9%

Vas27.3 L −7%

BL4.7 T·m −9%

Xmax6 mm −25%

Sensitivity86.9 dB −1

MonacorSPH-175HQ

£68.66

Fs39 Hz –

Qts0.42 –

Vas33 L +12%

BL6.4 T·m +25%

Xmax5.5 mm −31%

Sensitivity88 dB –

Scanspeak15M/4624G00

£70.29

Fs100 Hz +150%

Qts0.43 –

Vas3.7 L −87%

BL5.3 T·m +4%

Xmax1.5 mm −81%

Sensitivity91 dB +3.1

SB AcousticsSB17NAC35-8

£70.75

Fs32 Hz −21%

Qts0.42 –

Vas33 L +12%

BL6.2 T·m +21%

Xmax5.5 mm −31%

Sensitivity85.6 dB −2.3

MonacorSPH-170

£80.38

Fs38 Hz −5%

Qts0.44 –

Vas37 L +26%

BL5.9 T·m +15%

Xmax3 mm −63%

Sensitivity87.7 dB –

SEASH1217-08 CA18RLY

£90.62

Fs42 Hz +5%

Qts0.47 +9%

Vas32 L +9%

BL5.6 T·m +9%

Xmax5 mm −38%

Sensitivity88.3 dB –

WavecorWF166TU02

£96.50

Fs50 Hz +25%

Qts0.48 +12%

Vas22.3 L −24%

BL5 T·m –

Xmax3 mm −63%

Sensitivity89.5 dB +1.6

WavecorWF168WA01

£96.71

Fs48 Hz +19%

Qts0.43 –

Vas24.6 L −16%

BL5.1 T·m –

Xmax3 mm −63%

Sensitivity89.6 dB +1.7

WavecorWF168WA05

£102.24

Fs40 Hz –

Qts0.42 –

Vas27.7 L −6%

BL5 T·m –

Xmax3 mm −63%

Sensitivity88 dB –

MarkaudioALPAIR 12PW

£120.00

Fs38 Hz −4%

Qts0.39 −9%

Vas45.3 L +54%

BL5.3 T·m +4%

Xmax8.5 mm +6%

Sensitivity88.8 dB +0.9

Scanspeak15W/8534T00

£154.86

Fs32 Hz −20%

Qts0.39 −9%

Vas30 L –

BL5.5 T·m +7%

Xmax5 mm −38%

Sensitivity85.6 dB −2.3

SEASE0018-08S W18E001

£376.75

Fs34 Hz −15%

Qts0.42 –

Vas30 L –

BL6.6 T·m +29%

Xmax5 mm −38%

Sensitivity85.8 dB −2.1

SEASE0037-08S W15CH001

£385.12

Fs38 Hz −5%

Qts0.42 –

Vas14 L −52%

BL5.1 T·m –

Xmax4 mm −50%

Sensitivity83.9 dB −4

SEASE0076-08 W19NX001

£586.08

Fs34 Hz −15%

Qts0.41 −5%

Vas24 L −18%

BL8.3 T·m +62%

Xmax7 mm −13%

Sensitivity85.2 dB −2.7

AccutonAS190-9-251

£1,133.72

Fs33 Hz −17%

Qts0.44 –

Vas26.7 L −9%

BL13.5 T·m +164%

Xmax9 mm +13%

Sensitivity85.1 dB −2.8

WavecorWF168OM01

No current price

Fs39 Hz –

Qts0.45 +5%

Vas29.5 L –

BL4.8 T·m −6%

Xmax4.2 mm −48%

Sensitivity87.7 dB –

WavecorWF166TU01

No current price

Fs50 Hz +25%

Qts0.45 +5%

Vas23.2 L −21%

BL5.2 T·m –

Xmax3.5 mm −56%

Sensitivity89.9 dB +2

Tang BandW6-658I

No current price

Fs45 Hz +13%

Qts0.44 –

Vas28.3 L −4%

BL6.3 T·m +23%

Xmax4.1 mm −49%

Sensitivity89.2 dB +1.3

REDCATT61FHM-1

No current price

Fs35 Hz −13%

Qts0.53 +23%

Vas28.6 L –

BL5.0 T·m –

Xmax6.4 mm −20%

Sensitivity85.5 dB −2.4

Tang BandW6-789E

No current price

Fs50 Hz +25%

Qts0.46 +7%

Vas41.5 L +41%

BL5.1 T·m –

Xmax4.3 mm −47%

Sensitivity92.2 dB +4.3

Lii AudioFAST 6

No current price

Fs63 Hz +57%

Qts0.46 +6%

Vas22.9 L −22%

BL4.3 T·m −17%

Xmax6 mm −25%

Sensitivity92.5 dB +4.6

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
Audiophonics Checked 25 Oct 2026 · Ships from France · 4 Ω · Source: inc VAT · 20% Import VAT and duty may apply	£96.21		Available on order	Visit shop at Audiophonics