Dayton AudioSIG180-4
£41.13 · 83% less, betterFs41 Hz –
Qts0.38 +12%, worse
Vas23.2 L −3%
BL6.6 T·m −6%
Xmax5 mm −29%, worse
Sensitivity87.8 dB –
6.5-inch LF driver · Excel series · 39 mm voice coil · 80 W
SEAS E0042-08S W18NX001 8Ω
8 Ω · 30–3000 Hz
£239.40
Falcon Acoustics · In stock · All 2 offers
- Fs
- 40Hz
- Xmax
- 7mm
- SPL
- 88dB
- Pe
- 80W
- BL
- 7T·m
- Vd
- 88cm³
- Qts
- 0.34
- Vas
- 24L
Published graphs
SEAS E0042-08S W18NX001 is a 6.5-inch 8 ohm LF driver rated at 80 W RMS. The validated T/S data includes Fs 40 Hz, Qts 0.34, Vas 24 L, Xmax 7 mm, sensitivity 87.8 dB, plus 88 cm³ Vd and 98 EBP. bits tracks UK, EU and US shop prices, price movement, datasheet links, simulator import data, and similar drivers, with a current best price of £239.40.
The published T/S values agree with each other
Thiele/Small
- Fs
- 40Hz
- Qts
- 0.34
- Qes
- 0.41
- Qms
- 2.1
- Vas
- 24L
- Re
- 6.3Ω
- Le
- 0.43mH
Motor and cone
- BL
- 7T·m
- Sd
- 126cm²
- Mms
- 14g
- Xmax
- 7mm
- Vd †
- 88cm³
- Voice coil
- 39mm
- Flux density
- 1T
Power and response
- Sensitivity †
- 87.8dB
- Manufacturer sensitivity
- 87.5dB
- Power
- 80W
- Impedance
- 8Ω
- Range
- 30–3000Hz
- EBP †
- 98 · Sealed or vented
Size and mounting
- Weight
- 2.1kg
Other published values
- Cms
- 1.20mm/N
- Rms
- 1.77kg/s
- Xmech
- 11
- Power Peak
- 250
† Calculated by bits from the published values
What this validation status means
Everything else SEAS lists
LF · Primary · 6.5″
- BL
- 7T·m
- Fs
- 40Hz
- Le
- 0.43mH
- Re
- 6.3Ω
- Sd
- 126cm²
- Cms
- 1.20mm/N
- Mms
- 14g
- Qes
- 0.41
- Qms
- 2.1
- Qts
- 0.34
- Rms
- 1.77kg/s
- SPL
- 87.8dB
- Vas
- 24L
- Xmax
- 7mm
- Xmech
- 11
- Power
- 80W
- Impedance
- 8Ω
- Power Peak
- 250
- Flux density
- 1T
- Sensitivity
- 87.5dB
- Low limit
- 30Hz
- Calculated sensitivity †
- 87.8dB
- High limit
- 3000Hz
- Manufacturer sensitivity
- 87.5dB
- Voice coil
- 39mm
- Weight
- 2.1kg
02
Compare
Same-size drivers, compared with the E0042-08S W18NX001. Clear differences are green when better and red when worse.
This driverE0042-08S W18NX001
Best price
£239.40
Fs
40 Hz
Qts
0.34
Vas
24 L
BL
7 T·m
Xmax
7 mm
Sensitivity
87.8 dB
Power
80 W
CIAREHW162
£47.73 · 80% less, betterFs44 Hz +10%, worse
Qts0.33 –
Vas24.8 L +3%
BL7.5 T·m +7%
Xmax4.5 mm −36%, worse
Sensitivity89.4 dB +1.6
MonacorSPH-176
£58.80 · 75% less, betterFs39 Hz –
Qts0.37 +9%
Vas27 L +13%, worse
BL7.7 T·m +10%, better
Xmax5.5 mm −21%, worse
Sensitivity87.6 dB –
Dayton AudioRS180P-8
£59.83 · 75% less, betterFs46 Hz +14%, worse
Qts0.34 –
Vas22 L −8%
BL7.2 T·m –
Xmax6 mm −14%, worse
Sensitivity88.8 dB +1
Dayton AudioRS180-8
£59.83 · 75% less, betterFs36 Hz −11%, better
Qts0.31 −9%
Vas24.4 L –
BL7.8 T·m +12%, better
Xmax6 mm −14%, worse
Sensitivity86.3 dB −1.5
CIAREHWB160
£65.31 · 73% less, betterFs43 Hz +8%
Qts0.37 +9%
Vas28 L +17%, worse
BL7.3 T·m +4%
Xmax4.5 mm −36%, worse
Sensitivity89.4 dB +1.6
Dayton AudioRS180S-8
£78.62 · 67% less, betterFs38 Hz −6%
Qts0.36 +6%
Vas23 L −4%
BL7.3 T·m +4%
Xmax6 mm −14%, worse
Sensitivity86 dB −1.8
Dayton AudioPS180-8
£89.75 · 63% less, betterFs59 Hz +46%, worse
Qts0.33 –
Vas27.6 L +15%, worse
BL6.8 T·m –
Xmax4.6 mm −34%, worse
Sensitivity93.9 dB +6.1, better
SEASH1456-08 ER18RNX
£109.29 · 54% less, betterFs37 Hz −8%
Qts0.32 −6%
Vas32 L +33%, worse
BL7.2 T·m –
Xmax6 mm −14%, worse
Sensitivity88.2 dB –
WavecorWF182BD17
£121.93 · 49% less, betterFs33 Hz −18%, better
Qts0.35 –
Vas24.3 L –
BL6.5 T·m −7%
Xmax5.5 mm −21%, worse
Sensitivity85.8 dB −2, worse
£125.61 · 48% less, better
Fs43 Hz +8%
Qts0.37 +9%
Vas22 L −8%
BL6.9 T·m –
Xmax6 mm −14%, worse
Sensitivity87.9 dB –
Scanspeak15W/8531K00
£150.70 · 37% less, betterFs39 Hz –
Qts0.38 +12%, worse
Vas16.7 L −30%, better
BL6.6 T·m −6%
Xmax6.5 mm −7%
Sensitivity85.8 dB −2, worse
Scanspeak15W/8530K00
£157.03 · 34% less, betterFs39 Hz –
Qts0.39 +15%, worse
Vas16 L −33%, better
BL6.6 T·m −6%
Xmax6.5 mm −7%
Sensitivity85.5 dB −2.3, worse
Scanspeak18W/8542-10
£157.04 · 34% less, betterFs43 Hz +8%
Qts0.35 –
Vas26 L +8%
BL6.9 T·m –
Xmax6.5 mm −7%
Sensitivity88.7 dB +0.9
Scanspeak18W/8531G00
£168.81 · 29% less, betterFs28 Hz −30%, better
Qts0.36 +6%
Vas58.2 L +143%, worse
BL6.8 T·m –
Xmax6.5 mm −7%
Sensitivity87.2 dB −0.6
£502.34 · 110% more, worse
Fs33 Hz −18%, better
Qts0.39 +15%, worse
Vas33 L +38%, worse
BL7.9 T·m +13%, better
Xmax7 mm –
Sensitivity86.5 dB −1.3
£586.08 · 145% more, worse
Fs34 Hz −15%, better
Qts0.41 +21%, worse
Vas24 L –
BL8.3 T·m +19%, better
Xmax7 mm –
Sensitivity85.2 dB −2.6, worse
No current price
Fs35 Hz −13%, better
Qts0.34 –
Vas31 L +29%, worse
BL7.4 T·m +6%
Xmax7 mm –
Sensitivity87.5 dB –
RS SpeakersW 174.38 FIBONACCI
No current priceFs38 Hz −6%
Qts0.38 +12%, worse
Vas22.9 L −5%
BL7.2 T·m +3%
Xmax6 mm −14%, worse
Sensitivity87 dB −0.8
WavecorWF182BD09
No current priceFs33 Hz −18%, better
Qts0.35 –
Vas24.3 L –
BL6.5 T·m −7%
Xmax5.5 mm −21%, worse
Sensitivity85.8 dB −2, worse
HiViS6.5R
No current priceFs41 Hz –
Qts0.38 +12%, worse
Vas23.2 L −3%
BL6.5 T·m −7%
Xmax5.8 mm −17%, worse
Sensitivity87.8 dB –
SB AcousticsMW19PF-8
No current priceFs30 Hz −25%, better
Qts0.34 –
Vas63 L +163%, worse
BL7 T·m –
Xmax6.5 mm −7%
Sensitivity88.7 dB +0.9
HiViS6N
No current priceFs45 Hz +13%, worse
Qts0.35 –
Vas23.4 L –
BL7.6 T·m +9%
Xmax4.3 mm −39%, worse
Sensitivity89.4 dB +1.6
HiViSS6N
No current priceFs44 Hz +10%, worse
Qts0.36 +6%
Vas23.9 L –
BL7.6 T·m +9%
Xmax4.3 mm −39%, worse
Sensitivity89.1 dB +1.3
CelestionNTR06-1705D
No current priceFs49 Hz +23%, worse
Qts0.38 +11%, worse
Vas21.4 L −11%, better
BL8.2 T·m +17%, better
Xmax6 mm −14%, worse
Sensitivity90 dB +2.2, better
HiViSS6.5R
No current priceFs42 Hz +5%
Qts0.39 +15%, worse
Vas21.6 L −10%
BL6.5 T·m −7%
Xmax5.8 mm −17%, worse
Sensitivity87.7 dB –
Audio Technology6 H 52 17 06 SD
No current priceFs33 Hz −18%, better
Qts0.35 –
Vas47 L +96%, worse
BL6.6 T·m −6%
Xmax6.3 mm −10%, worse
Sensitivity88.1 dB –
KartesianLOM155_VKI
No current priceFs48 Hz +20%, worse
Qts0.33 –
Vas16.6 L −31%, better
BL6.3 T·m −9%
Xmax6 mm −14%, worse
Sensitivity89.1 dB +1.3
HiViSS6.5
No current priceFs42 Hz +5%
Qts0.39 +15%, worse
Vas24.8 L +3%
BL6.4 T·m −9%
Xmax5.8 mm −17%, worse
Sensitivity88.1 dB –
WavecorWF182BD07
No current priceFs40 Hz –
Qts0.34 –
Vas24.4 L –
BL8.5 T·m +21%, better
Xmax5.5 mm −21%, worse
Sensitivity88.5 dB +0.7
Tune the match
Choose the published values that matter to your design. Size stays matched to this driver.
Qts
Qes
VasL
Xmaxmm
BLTm
- SoundImports5.0 out of 52 ratings · Checked 26 Oct 2026Read reviews on SoundImports
Each shop collects its own ratings. Bits shows them as published and doesn't verify them.
| Shop | Price | Against the lowest | Stock | Link |
|---|---|---|---|---|
Falcon Acoustics | £239.40, the lowest price | In stock | Visit shop at Falcon Acoustics | |
SoundImports Import VAT and duty may apply | £251.15 | 4.9% above the lowest price | 7 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 21 Oct