[piotrus-g]

Hey there sports fans apparently I have a bit too much time on my hands so here we go
E50DT0005/D vs SWFK-31736
measuring conditions: IEC711 (GRAS) output impedance 0.1 Ohm. 13mmx2ID tubing on each, measured at the entrance of the coupler.
1. E50DT0005 at 95dB level and SWFK measured at the same volume knob position.

2. E50DT0005 at 95dB level and SWFK with increased volume to match 95dB at 1kHz

Hope that helps

PS: it's not recommended to use E50DT0005 below 3-4kHz due to very high distortions around first peak

 

[kkugel]

Hey there sports fans apparently I have a bit too much time on my hands so here we go
E50DT0005/D vs SWFK-31736
measuring conditions: IEC711 (GRAS) output impedance 0.1 Ohm. 13mmx2ID tubing on each, measured at the entrance of the coupler.
1. E50DT0005 at 95dB level and SWFK measured at the same volume knob position.

2. E50DT0005 at 95dB level and SWFK with increased volume to match 95dB at 1kHz


Hope that helps

PS: it's not recommended to use E50DT0005 below 3-4kHz due to very high distortions around first peak

Thanks for posting man, this cleared things up!

 

[mattmatt]

Hey there sports fans apparently I have a bit too much time on my hands so here we go
E50DT0005/D vs SWFK-31736
measuring conditions: IEC711 (GRAS) output impedance 0.1 Ohm. 13mmx2ID tubing on each, measured at the entrance of the coupler.
1. E50DT0005 at 95dB level and SWFK measured at the same volume knob position.

2. E50DT0005 at 95dB level and SWFK with increased volume to match 95dB at 1kHz


Hope that helps

PS: it's not recommended to use E50DT0005 below 3-4kHz due to very high distortions around first peak

So this means that SWFK 31736 and E50DT0005 has almost the same extension but the SWFK has better 7k response right? In your opinion, which is the better driver when being paired with other systems? Which one behaves more predictable when implemented with other drivers?

To me, basing on graphs alone, the SWFK is somewhat better due to a more flexibility with damping but the E50 might do better with a smoother response and attack.

Thank you so much for the graphs, this is a very valuable lesson when comparing graphs from manufacturers.

 

[piotrus-g]

Thanks for posting man, this cleared things up!

No problem man

So this means that SWFK 31736 and E50DT0005 has almost the same extension but the SWFK has better 7k response right? In your opinion, which is the better driver when being paired with other systems? Which one behaves more predictable when implemented with other drivers?

To me, basing on graphs alone, the SWFK is somewhat better due to a more flexibility with damping but the E50 might do better with a smoother response and attack.

Thank you so much for the graphs, this is a very valuable lesson when comparing graphs from manufacturers.

Yeah so me personally I'm on SWFK team. If you consider the graphs, E50D offers more output below 4kHz which technically is unusable due to high THD, so that is not an advantage. SWFK is louder at range that matters, you could argue that E50D picks up 14kHz range where SWFK drops but if you play around with tubing you could probably cover that region too with SWFK. Also notice how E50D drops after 18kHz, all Knowles' tweeters somewhat offer better extension than Sonion equivalents.
But then you know... that's me.

 

[Xymordos]

Hey there sports fans apparently I have a bit too much time on my hands so here we go
E50DT0005/D vs SWFK-31736
measuring conditions: IEC711 (GRAS) output impedance 0.1 Ohm. 13mmx2ID tubing on each, measured at the entrance of the coupler.
1. E50DT0005 at 95dB level and SWFK measured at the same volume knob position.

2. E50DT0005 at 95dB level and SWFK with increased volume to match 95dB at 1kHz


Hope that helps

PS: it's not recommended to use E50DT0005 below 3-4kHz due to very high distortions around first peak

That's really useful, thank you!

 

[mattmatt]

No problem man

Yeah so me personally I'm on SWFK team. If you consider the graphs, E50D offers more output below 4kHz which technically is unusable due to high THD, so that is not an advantage. SWFK is louder at range that matters, you could argue that E50D picks up 14kHz range where SWFK drops but if you play around with tubing you could probably cover that region too with SWFK. Also notice how E50D drops after 18kHz, all Knowles' tweeters somewhat offer better extension than Sonion equivalents.
But then you know... that's me.

With that response, do you find it necessary to apply a high pass? Looks like that can do without one and can just be controlled with resistors and dampers alone.

 

[Aldo40]

.It is better to cut with a capacitor to avoid sending the full band, it protects the tweeter. A resistance or a damper does not control this

 

[Theodoric Paddlefoot]

A little update from my MASM 3 Pro with added 38D1X, the MASM 5 A.
I've played around a bit with adding tubes right into the shell in Fusion 360 and that worked quite well. In the end though, I've settled with the shell from @Aldo40 from page 885, which I modified to make the nozzle bigger so that I can fit 2x 2mm and 1x 1mm ID tubes quite nicely.
I've printed with black resin and used Lack 3 for the shell itself and for the faceplate I went with some nail polish with chameleon effect, covered with Lack 3.

All in all I'm very happy with the result and can recommend adding a 38D1X to the amazing MASM 3 Pro's.

 

[Aldo40]

Good job

 

[dhruvmeena96]

With that response, do you find it necessary to apply a high pass? Looks like that can do without one and can just be controlled with resistors and dampers alone.

Its possible for other drivers
but for E50
The distortion is at unacceptable ranges as it goes into mids and bass regions

So, it do require a capacitor

Its not like, you cant do this
Its just that
Its not worth it and is actually way more degraded as it plays lower frequency.

Better alternative is ED or 2389 for that sort of applications

 

[piotrus-g]

With that response, do you find it necessary to apply a high pass? Looks like that can do without one and can just be controlled with resistors and dampers alone.

Well you can always experiment and try, I know that there are some manufacturers that go for like 5 drivers w/o crossover so there's real life examples that it could be done, what you can make from such arrangement is completely up to you

 

[dhruvmeena96]

Well you can always experiment and try, I know that there are some manufacturers that go for like 5 drivers w/o crossover so there's real life examples that it could be done, what you can make from such arrangement is completely up to you

W/o crossover sounds lazy Though(from engineering standpoint)
Hahahahahha

Tried andro gold and was disappointed as it was not resolving enough and campfire tuning is kinda weird for my taste

With that response, do you find it necessary to apply a high pass? Looks like that can do without one and can just be controlled with resistors and dampers alone.

@piotrus-g is actually right, you can try mixing and matching, adjusting tubes and shifting resonances and fill one driver dip with other driver peak and create a decombing smoothening effect.

Good way to exercise tube lenght and tube resonances

 

[seckarales]

ok I see

I do everything with meshmixer and it goes very well

I used meshlab before

How much do you expand scanned impression after you smoothed them out in meshmixer?

 

[Aldo40]

une

How much do you expand scanned impression after you smoothed them out in meshmixer?

in general 0.25mm but depending on the people it can go up to 0.50 see + but 0.50 seems pretty good, you have to test

 

[Wgibson]

A little update from my MASM 3 Pro with added 38D1X, the MASM 5 A.
I've played around a bit with adding tubes right into the shell in Fusion 360 and that worked quite well. In the end though, I've settled with the shell from @Aldo40 from page 885, which I modified to make the nozzle bigger so that I can fit 2x 2mm and 1x 1mm ID tubes quite nicely.
I've printed with black resin and used Lack 3 for the shell itself and for the faceplate I went with some nail polish with chameleon effect, covered with Lack 3.



All in all I'm very happy with the result and can recommend adding a 38D1X to the amazing MASM 3 Pro's.

Wow, that is professional level. Would love that shell file if you are willing and able to share it