Dayton AudioCE41N-4
£7.08Fs170 Hz +42%, worse
Qts0.53 +51%, worse
Vas0.078 L −29%, better
BL2.3 T·m −27%, worse
Xmax0.7 mm −70%, worse
Sensitivity80.2 dB +2.1, better
1-inch LF driver · 6 W
Tang Band W1-2121S 4Ω
4 Ω
No price for delivery to the UK
- Fs
- 120Hz
- Xmax
- 2.3mm
- SPL
- 78dB
- Pe
- 6W
- BL
- 3.1T·m
- Vd
- 2cm³
- Qts
- 0.35
- Vas
- 0.11L
Manufacturer response and impedance data, with source and trace details below. The left and right arrow keys read every shown curve at a frequency, a twelfth of an octave at a time, or an octave with Shift. Escape clears the reading.
Curve provenanceInspect 2 traces
These plotted lines are Bits digitizations of manufacturer evidence, not new measurements. How provenance works
- Trace datasheet-response-trace-poc/v1
spl
Frequency response
240 plotted pointsMedium confidence1,052 selected pixels of 2,718 - Trace datasheet-response-trace-poc/v1
impedance
Impedance response
240 plotted pointsMedium confidence2,758 selected pixels of 2,759
Tang Band W1-2121S is a 1-inch 4 ohm LF driver rated at 6 W RMS. The validated T/S data includes Fs 120 Hz, Qts 0.35, Vas 0.11 L, Xmax 2.3 mm, sensitivity 78.1 dB, plus 2 cm³ Vd and 255 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
- 120Hz
- Qts
- 0.35
- Qes
- 0.47
- Qms
- 1.3
- Vas
- 0.11L
- Re
- 3.5Ω
- Le
- 0.07mH
Motor and cone
- BL
- 3.1T·m
- Sd
- 9cm²
- Mms
- 2g
- Xmax
- 2.3mm
- Vd †
- 2cm³
Power and response
- Sensitivity †
- 78.1dB
- Manufacturer sensitivity
- 79dB
- Power
- 6W
- Impedance
- 4Ω
- EBP †
- 255 · Leans vented
Other published values
- Power Peak
- 12
† Calculated by bits from the published values
What this validation status means
Everything else Tang Band lists
LF · Primary · 1″
- BL
- 3.1T·m
- Fs
- 120Hz
- Le
- 0.07mH
- Re
- 3.5Ω
- Sd
- 9cm²
- Mms
- 2g
- Qes
- 0.47
- Qms
- 1.3
- Qts
- 0.35
- SPL
- 78.1dB
- Vas
- 0.11L
- Xmax
- 2.3mm
- Power
- 6W
- Impedance
- 4Ω
- Power Peak
- 12
- Sensitivity
- 79dB
- Calculated sensitivity †
- 78.1dB
- Manufacturer sensitivity
- 79dB
02
Compare
Same-size drivers, compared with the W1-2121S. Clear differences are green when better and red when worse.
This driverW1-2121S
Best price
–
Fs
120 Hz
Qts
0.35
Vas
0.11 L
BL
3.1 T·m
Xmax
2.3 mm
Sensitivity
78.1 dB
Power
6 W
REDCATT20NFR
£9.96Fs185 Hz +54%, worse
Qts0.52 +49%, worse
Vas0.09 L −18%, better
BL3.2 T·m +3%
Xmax3 mm +30%, better
Sensitivity82.3 dB +4.2, better
Dayton AudioDMA58-8
£15.83Fs166 Hz +38%, worse
Qts0.54 +54%, worse
Vas0.14 L +24%, worse
BL4.9 T·m +56%, better
Xmax2 mm −13%, worse
Sensitivity81.6 dB +3.5, better
Dayton AudioDMA58-4
£16.70Fs166 Hz +38%, worse
Qts0.46 +31%, worse
Vas0.14 L +29%, worse
BL3.7 T·m +18%, better
Xmax2 mm −13%, worse
Sensitivity82.6 dB +4.5, better
Sica2 H 0.8 SL
£17.58Fs216 Hz +80%, worse
Qts0.81 +131%, worse
Vas0.1 L −9%
BL2.6 T·m −17%, worse
Xmax1.4 mm −39%, worse
Sensitivity82.1 dB +4, better
Tang BandW2-852SH
£21.35Fs160 Hz +33%, worse
Qts0.29 −17%, better
Vas0.25 L +127%, worse
BL3.0 T·m −5%
Xmax1 mm −57%, worse
Sensitivity86.5 dB +8.4, better
MonacorSPX-21M
£22.52Fs170 Hz +42%, worse
Qts0.47 +34%, worse
Vas0.1 L −9%
BL3.3 T·m +6%
Xmax1.2 mm −48%, worse
Sensitivity81.7 dB +3.6, better
SB AcousticsSB65WBAC25-4
£25.12Fs115 Hz −4%
Qts0.68 +94%, worse
Vas0.43 L +291%, worse
BL2.9 T·m −8%
Xmax2.6 mm +15%, better
Sensitivity81.3 dB +3.2, better
Tang BandW1-1070SH
£29.31Fs180 Hz +50%, worse
Qts0.42 +20%, worse
Vas0.09 L −18%, better
BL3.2 T·m +3%
Xmax2 mm −13%, worse
Sensitivity82.1 dB +4, better
Tang BandW2-2136S
£33.66Fs120 Hz –
Qts0.31 −11%, better
Vas0.26 L +136%, worse
BL3.7 T·m +18%, better
Xmax2 mm −13%, worse
Sensitivity82.6 dB +4.5, better
CelestionAN2075
£33.66Fs153 Hz +28%, worse
Qts0.84 +140%, worse
Vas1.5 L +1273%, worse
BL2.7 T·m −14%, worse
Xmax2.3 mm –
Sensitivity89.4 dB +11.3, better
MonacorSPX-20M
£34.33Fs157 Hz +31%, worse
Qts0.42 +20%, worse
Vas0.2 L +82%, worse
BL4.5 T·m +43%, better
Xmax0.5 mm −78%, worse
Sensitivity84.3 dB +6.2, better
Scanspeak5F/8422T01
£53.50Fs93 Hz −23%, better
Qts0.61 +74%, worse
Vas0.5 L +355%, worse
BL3.1 T·m –
Xmax2 mm −13%, worse
Sensitivity79.7 dB +1.6
MonacorSPH-8M
£93.66Fs35 Hz −71%, better
Qts0.41 +17%, worse
Vas44 L +39900%, worse
BL9.0 T·m +187%, better
Xmax4.5 mm +96%, better
Sensitivity87.8 dB +9.7, better
FountekFR59EXE
No current priceFs139 Hz +16%, worse
Qts0.36 –
Vas0.15 L +36%, worse
BL3.0 T·m −5%
Xmax1.4 mm −39%, worse
Sensitivity81.3 dB +3.2, better
Dayton AudioCE67PR-4
No current priceFs218 Hz +82%, worse
Qts0.92 +163%, worse
Vas0.11 L –
BL3.2 T·m –
Xmax2.2 mm −4%
Sensitivity82.1 dB +4, better
Tang BandW2-2181S
No current priceFs120 Hz –
Qts0.34 –
Vas0.24 L +118%, worse
BL3.7 T·m +18%, better
Xmax2 mm −13%, worse
Sensitivity81.9 dB +3.8, better
Tang BandW2-2360S
No current priceFs170 Hz +42%, worse
Qts0.32 −9%
Vas0.27 L +145%, worse
BL3 T·m −4%
Xmax1 mm −57%, worse
Sensitivity86.9 dB +8.8, better
Tang BandW2-802SE
No current priceFs160 Hz +33%, worse
Qts0.36 –
Vas0.3 L +182%, worse
BL3.5 T·m +11%, better
Xmax1 mm −57%, worse
Sensitivity87 dB +8.9, better
Tang BandW2-780SD
No current priceFs155 Hz +29%, worse
Qts0.35 –
Vas0.3 L +164%, worse
BL3.6 T·m +16%, better
Xmax1 mm −57%, worse
Sensitivity86.5 dB +8.4, better
Tang BandW2-803SM
No current priceFs160 Hz +33%, worse
Qts0.40 +14%, worse
Vas0.25 L +127%, worse
BL2.7 T·m −14%, worse
Xmax0.85 mm −63%, worse
Sensitivity85.5 dB +7.4, better
LavoceFSN020.72
No current priceFs210 Hz +75%, worse
Qts0.92 +163%, worse
Vas0.18 L +64%, worse
BL3.2 T·m –
Xmax2.3 mm –
Sensitivity83.6 dB +5.5, better
LavoceFSN020.71F
No current priceFs212 Hz +77%, worse
Qts0.82 +134%, worse
Vas0.22 L +100%, worse
BL3.2 T·m +3%
Xmax2.4 mm +4%
Sensitivity85.5 dB +7.4, better
Tang BandW1-1828SA
No current priceFs120 Hz –
Qts0.33 −6%
Vas0.23 L +109%, worse
BL2.6 T·m −17%, worse
Xmax1.3 mm −46%, worse
Sensitivity82.3 dB +4.2, better
LavoceFSN021.02
No current priceFs151 Hz +26%, worse
Qts0.68 +94%, worse
Vas0.3 L +173%, worse
BL3.4 T·m +10%
Xmax2.3 mm –
Sensitivity83.3 dB +5.2, better
Dayton AudioCE4876-8
No current priceFs203 Hz +69%, worse
Qts1.42 +306%, worse
Vas0.37 L +236%, worse
BL2.9 T·m −6%
Xmax2.2 mm −4%
Sensitivity84.6 dB +6.5, better
Tang BandW2-1767S
No current priceFs110 Hz −8%
Qts0.36 –
Vas0.22 L +100%, worse
BL5.0 T·m +61%, better
Xmax3 mm +30%, better
Sensitivity80.6 dB +2.5, better
Dayton AudioCE4249N-4
No current priceFs184 Hz +53%, worse
Qts0.49 +40%, worse
Vas0.039 L −65%, better
BL2.9 T·m −6%
Xmax1.6 mm −30%, worse
Sensitivity78.6 dB +0.5
WavecorFR055WA04
No current priceFs128 Hz +7%
Qts0.51 +46%, worse
Vas0.33 L +200%, worse
BL3.3 T·m +5%
Xmax1.4 mm −41%, worse
Sensitivity83 dB +4.9, better
Tang BandW2-1625SA
No current priceFs90 Hz −25%, better
Qts0.31 −11%, better
Vas0.3 L +182%, worse
BL5.2 T·m +64%, better
Xmax2 mm −13%, worse
Sensitivity80.4 dB +2.3, 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 |
|---|---|---|---|---|
SoundImports Not currently listed · Last seen 16 Jun 2026 · Import VAT and duty may apply | £33.45 | Out of stock | Visit shop at SoundImports |