Dayton AudioND91-4
£20.93 · 87% less, betterFs74 Hz +72%, worse
Qts0.41 –
Vas1.4 L −91%, better
BL4.6 T·m −40%, worse
Xmax4.6 mm −12%, worse
Sensitivity83 dB −3.5, worse
3-inch LF driver · TITANIUM FORMER series · 75 mm voice coil · 150 W
Morel TIW 638ND 8Ω
8 Ω
£249.48
2.5%Willys-Hifi · All 4 offers
- Fs
- 43Hz
- Xmax
- 5.3mm
- SPL
- 87dB
- Pe
- 150W
- BL
- 7.7T·m
- Vd
- 62cm³
- Qts
- 0.40
- Vas
- 16L
Morel TIW 638ND is a 3-inch 8 ohm LF driver rated at 150 W RMS. The validated T/S data includes Fs 43 Hz, Qts 0.40, Vas 15.5 L, Xmax 5.3 mm, sensitivity 86.5 dB, plus 62 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 £165.79.
The published T/S values agree with each other
Thiele/Small
- Fs
- 43Hz
- Qts
- 0.40
- Qes
- 0.44
- Qms
- 4.7
- Vas
- 15.5L
- Re
- 5.4Ω
- Le
- 0.53mH
Motor and cone
- BL
- 7.7T·m
- Sd
- 119cm²
- Mms
- 17g
- Xmax
- 5.3mm
- Vd †
- 62cm³
- Voice coil
- 75mm
- Flux density
- 0.81T
Power and response
- Sensitivity †
- 86.5dB
- Manufacturer sensitivity
- 87dB
- Power
- 150W
- Nominal power
- 150W
- Impedance
- 8Ω
- EBP †
- 98 · Sealed or vented
Size and mounting
- Diameter
- 160mm
- Depth
- 69mm
- Weight
- 1.2kg
Other published values
- Cms
- 0.78mm/N
- Rms
- 0.99kg/s
- Power Peak
- 1000
† Calculated by bits from the published values
What this validation status means
Everything else Morel lists
LF · Primary · 3″
- BL
- 7.7T·m
- Fs
- 43Hz
- Le
- 0.53mH
- Re
- 5.4Ω
- Sd
- 119cm²
- Cms
- 0.78mm/N
- Mms
- 17g
- Qes
- 0.44
- Qms
- 4.7
- Qts
- 0.40
- Rms
- 0.99kg/s
- SPL
- 86.5dB
- Vas
- 15.5L
- Xmax
- 5.3mm
- Power
- 150W
- Impedance
- 8Ω
- Power Peak
- 1000
- Flux density
- 0.81T
- Sensitivity
- 87dB
- Nominal power
- 150W
- Calculated sensitivity †
- 86.5dB
- Manufacturer sensitivity
- 87dB
- Voice coil
- 75mm
- Weight
- 1.2kg
- Diameter
- 160mm
- Depth
- 69mm
02
Compare
Same-size drivers, compared with the TIW 638ND. Clear differences are green when better and red when worse.
This driverTIW 638ND
Best price
£165.79
Fs
43 Hz
Qts
0.40
Vas
15.5 L
BL
7.7 T·m
Xmax
5.3 mm
Sensitivity
86.5 dB
Power
150 W
LavoceFSN041.00
£34.72 · 79% less, betterFs114 Hz +165%, worse
Qts0.38 −5%
Vas1.8 L −88%, better
BL6.9 T·m −11%, worse
Xmax2.2 mm −58%, worse
Sensitivity90 dB +3.5, better
SB AcousticsSB12NRXF25-8
£45.28 · 73% less, betterFs63 Hz +47%, worse
Qts0.42 +5%
Vas4.2 L −73%, better
BL5.5 T·m −29%, worse
Xmax5 mm −5%
Sensitivity85.6 dB −0.9
SB AcousticsSB12NRX25-4
£46.34 · 72% less, betterFs55 Hz +28%, worse
Qts0.40 –
Vas5.6 L −64%, better
BL3.6 T·m −53%, worse
Xmax5 mm −5%
Sensitivity85.1 dB −1.4
SB AcousticsSB12NRX25-8
£51.87 · 69% less, betterFs57 Hz +33%, worse
Qts0.37 −8%
Vas5.3 L −66%, better
BL5.4 T·m −30%, worse
Xmax5 mm −5%
Sensitivity85.8 dB −0.7
SB AcousticsSB12CACS25-8
£58.31 · 65% less, betterFs51 Hz +19%, worse
Qts0.37 −8%
Vas6.5 L −58%, better
BL5.2 T·m −32%, worse
Xmax5 mm −5%
Sensitivity85.4 dB −1.1
MorelCAW 634
£104.66 · 37% less, betterFs43 Hz –
Qts0.42 +5%
Vas13.7 L −12%, better
BL5.6 T·m −27%, worse
Xmax4.3 mm −19%, worse
Sensitivity85.2 dB −1.3
MorelTIW 638FT
£129.78 · 22% less, betterFs40 Hz −7%
Qts0.42 +5%
Vas19.7 L +27%, worse
BL7.3 T·m −5%
Xmax4.3 mm −19%, worse
Sensitivity86.3 dB –
MorelCAW 538
£149.94 · 10% less, betterFs49 Hz +14%, worse
Qts0.38 −5%
Vas8.2 L −47%, better
BL6.9 T·m −10%, worse
Xmax3 mm −43%, worse
Sensitivity85.1 dB −1.4
MorelTIW 634FT
£152.39 · 8% less, betterFs40 Hz −7%
Qts0.39 –
Vas19.7 L +27%, worse
BL5.6 T·m −27%, worse
Xmax4.3 mm −19%, worse
Sensitivity86.7 dB –
MorelCAW 638
£159.05 · 4% lessFs43 Hz –
Qts0.46 +15%, worse
Vas15.7 L –
BL7.3 T·m −5%
Xmax4.3 mm −19%, worse
Sensitivity85.4 dB −1.1
MorelINTEGRA 624
£192.54 · 16% more, worseFs58 Hz +35%, worse
Qts0.35 −13%, better
Vas15.3 L –
BL5.4 T·m −30%, worse
Xmax3 mm −43%, worse
Sensitivity90.5 dB +4, better
MorelTIW 634ND
£205.14 · 24% more, worseFs40 Hz −7%
Qts0.36 −10%, better
Vas16.5 L +6%
BL6.5 T·m −15%, worse
Xmax5.5 mm +5%
Sensitivity86.4 dB –
MorelEW 536
£209.29 · 26% more, worseFs45 Hz +5%
Qts0.22 −45%, better
Vas10.3 L −34%, better
BL7.7 T·m –
Xmax5.5 mm +5%
Sensitivity87.3 dB +0.8
Tang BandW4-1879
£209.33 · 26% more, worseFs55 Hz +28%, worse
Qts0.43 +7%
Vas9.1 L −41%, better
BL4.2 T·m −46%, worse
Xmax5 mm −5%
Sensitivity86.8 dB –
MorelEW 638
£226.03 · 36% more, worseFs39 Hz −9%
Qts0.32 −20%, better
Vas20.3 L +31%, worse
BL7.0 T·m −8%
Xmax6 mm +14%, better
Sensitivity86.9 dB –
MorelECW 536
£236.12 · 42% more, worseFs45 Hz +5%
Qts0.31 −23%, better
Vas11 L −29%, better
BL6.8 T·m −11%, worse
Xmax5.5 mm +5%
Sensitivity86.1 dB –
PurifiPTT4.0X08-NAC-03
£251.15 · 51% more, worseFs43 Hz –
Qts0.39 –
Vas5.3 L −66%, better
BL7 T·m −9%
Xmax8.8 mm +68%, better
Sensitivity81.9 dB −4.6, worse
MorelTICW 634ND
£271.71 · 64% more, worseFs40 Hz −7%
Qts0.35 −13%, better
Vas17.3 L +12%, worse
BL6.6 T·m −14%, worse
Xmax5.5 mm +5%
Sensitivity86.8 dB –
MorelTICW 638ND
£293.02 · 77% more, worseFs45 Hz +5%
Qts0.42 +5%
Vas14 L −10%
BL7.5 T·m –
Xmax5.3 mm –
Sensitivity86.4 dB –
MorelECW 638
£293.02 · 77% more, worseFs39 Hz −9%
Qts0.29 −28%, better
Vas19 L +23%, worse
BL7.5 T·m −3%
Xmax6 mm +14%, better
Sensitivity87 dB +0.5
MorelSCM 634
£306.46 · 85% more, worseFs49 Hz +14%, worse
Qts0.40 –
Vas14 L −10%
BL4.9 T·m −36%, worse
Xmax5.3 mm –
Sensitivity86.5 dB –
MorelTSCW 636
£431.21 · 160% more, worseFs43 Hz –
Qts0.36 −10%, better
Vas13.3 L −14%, better
BL7.9 T·m –
Xmax5 mm −5%
Sensitivity86.4 dB –
MorelSCW 636
£452.11 · 173% more, worseFs40 Hz −7%
Qts0.29 −28%, better
Vas18.5 L +19%, worse
BL7.2 T·m −6%
Xmax5 mm −5%
Sensitivity87.3 dB +0.8
E J JordanEIKONA
No current priceFs43 Hz –
Qts0.35 −11%, better
Vas11.0 L −29%, better
BL6.5 T·m −15%, worse
Xmax5 mm −5%
Sensitivity85.3 dB −1.2
Tang BandW3-1750SB
No current priceFs50 Hz +16%, worse
Qts0.37 −8%
Vas1.7 L −89%, better
BL8.0 T·m +4%
Xmax5 mm −5%
Sensitivity79.3 dB −7.2, worse
Tang BandW3-2052S
No current priceFs50 Hz +16%, worse
Qts0.34 −15%, better
Vas0.9 L −94%, better
BL6.8 T·m −12%, worse
Xmax5 mm −5%
Sensitivity76.7 dB −9.8, worse
Audio Technology4 H 52 06 13 SD
No current priceFs48 Hz +12%, worse
Qts0.33 −18%, better
Vas16 L +3%
BL6.1 T·m −21%, worse
Xmax3.5 mm −33%, worse
Sensitivity88.4 dB +1.9
Dayton AudioND64-16
No current priceFs101 Hz +135%, worse
Qts0.41 –
Vas0.53 L −97%, better
BL6.5 T·m −15%, worse
Xmax1.9 mm −64%, worse
Sensitivity82.9 dB −3.6, worse
Tang BandW4-2089
No current priceFs35 Hz −19%, better
Qts0.42 +5%
Vas3.4 L −78%, better
BL8.7 T·m +13%, better
Xmax8 mm +52%, better
Sensitivity77 dB −9.5, worse
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 |
|---|---|---|---|---|
Willys-Hifi | £249.48, the lowest price | Stock not listed | Visit shop at Willys-Hifi | |
Lautsprechershop Import VAT and duty may apply | £165.79 | Stock not listed | Visit shop at Lautsprechershop | |
SoundImports Import VAT and duty may apply | £234.41 | 3 in stock | Visit shop at SoundImports |
Best price over time
Tracked since 1 Apr
Recent changes
- 1 OctWillys-Hifi£255.95 → £249.48Down 2.5% from £255.95
- 30 SepWillys-Hifi£254.95 → £255.95Up 0.4% from £254.95
- 29 SepWillys-Hifi£255.95 → £254.95Down 0.4% from £255.95