Hi Steffen
Maybe 😉
What i want‘t to check is behavior in the tweeter. I don‘t think (hope), that i have to fight with resonances in this area.
But in general: later on, if i can see changes in the behavior, i would try to find a more stable solution! Simply not that easy in a „weekend profession“. I am happy, if the printer will do the job… first try, he didn‘t 😉
Maybe 😉
What i want‘t to check is behavior in the tweeter. I don‘t think (hope), that i have to fight with resonances in this area.
But in general: later on, if i can see changes in the behavior, i would try to find a more stable solution! Simply not that easy in a „weekend profession“. I am happy, if the printer will do the job… first try, he didn‘t 😉
OK...
First Try was not that good, because i never get a good frequency Resonse in the tweeter, because of the positionings of the holes.
I "repaird the horn with the original Throat:
New holes:
Result:
Crossover 90Hz/600Hz
Crossover: LinearPhase done in the Hardware DSP. Also a little Delay on the Midbass, what was needed anyway, to fit the LinearPhase crossovers because of different Tap Length.
No Bass at the moment!
I would say: not that bad 😉
Christian
First Try was not that good, because i never get a good frequency Resonse in the tweeter, because of the positionings of the holes.
I "repaird the horn with the original Throat:
New holes:
Result:
Crossover 90Hz/600Hz
Crossover: LinearPhase done in the Hardware DSP. Also a little Delay on the Midbass, what was needed anyway, to fit the LinearPhase crossovers because of different Tap Length.
No Bass at the moment!
I would say: not that bad 😉
Christian
Hi
No, but these are 3cm ports for a 5" chassis, which starts at 90Hz... at home spl... so i don't think, that this kind of noise will be a problem here 😉
No, but these are 3cm ports for a 5" chassis, which starts at 90Hz... at home spl... so i don't think, that this kind of noise will be a problem here 😉
And to make sure, that my measurments are correct, i did the same in Crosslite+ what i use for the timing adjustments:
Looking very nice, way to stick with it !!
What's the total path length, CD flange to ports?
Do you have any raw response plots of the 5"s handy?
What's the total path length, CD flange to ports?
Do you have any raw response plots of the 5"s handy?
Hi Christian
Looks good, nice to see you have progress 😀 .
Hmm, I am curious of that too.
But it can be, that the "reflection-point" for the cancelation notch of the "midranges" is located around your first cutline of the horn, as the horn-contour there has a big change in profile, i.e opening up rapidly. Maybe that creates an impedance-discontinuity, making it the "reflection-point"? I have this idea, because Tom Danley has stated, that the "reflection-point" in a conical horn is at the throat of the horn and not at the diaphragm of the CD or at the phase-plug!?
Looking forward to see the raw-responses.
What LinearPhase-filters do you use?
Steffen
Looks good, nice to see you have progress 😀 .
Hmm, I am curious of that too.
But it can be, that the "reflection-point" for the cancelation notch of the "midranges" is located around your first cutline of the horn, as the horn-contour there has a big change in profile, i.e opening up rapidly. Maybe that creates an impedance-discontinuity, making it the "reflection-point"? I have this idea, because Tom Danley has stated, that the "reflection-point" in a conical horn is at the throat of the horn and not at the diaphragm of the CD or at the phase-plug!?
Looking forward to see the raw-responses.
What LinearPhase-filters do you use?
Steffen
Christian,
Sorry that didn't work out, but it was interesting to see the response with the 5" drivers entry point in the pinched throat portion of a diffraction horn!
Did moving the mid ports out of the throat eliminate their effect on the high frequency driver's response?
The processed response looks great!
Did moving the 5" out of the throat reduce their dip ~105Hz?
The TAD-4002 had good response/loading down to near 200Hz on the EV HP6040.
Have you found you prefer the sound of the cone drivers over the TAD-4002 below 600Hz?
Art
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Hi all.
Sorry for no feedback. Very busy at the moment ;(
Hopefully in to weeks, it will go on.
Will try to find old measurement, and will post raw measurements from todays setup!
Think about adding another 2 8“ or 10“ because the 5“ start to drop from 150hz.
Christian
Sorry for no feedback. Very busy at the moment ;(
Hopefully in to weeks, it will go on.
Will try to find old measurement, and will post raw measurements from todays setup!
Think about adding another 2 8“ or 10“ because the 5“ start to drop from 150hz.
Christian
Hi Christian
Maybe you could mount them on top and bottom of/ in the horn, before the final expansion? I know, more holes in the horn. But I think that Mark100´s experience with his SYN11 is to keep drivers/ports within 1/4 wavelength.
It is really tempting to make a mold for a fiberglass horn! I am slowly building a big MEH out of wood/plywood and there are so many parts and things to fit together. With a fiberglass horn there is ONE piece, keeping itself together! Hmm.
Steffen
Maybe you could mount them on top and bottom of/ in the horn, before the final expansion? I know, more holes in the horn. But I think that Mark100´s experience with his SYN11 is to keep drivers/ports within 1/4 wavelength.
It is really tempting to make a mold for a fiberglass horn! I am slowly building a big MEH out of wood/plywood and there are so many parts and things to fit together. With a fiberglass horn there is ONE piece, keeping itself together! Hmm.
Steffen
@chriss0212 I like the software you are using. I googled a tutorial for a two way speaker and it seems it can build some really nice FIR filters for MiniDSP. What is your general experience with this program? Are there things you like/ do not like? Have you used another FIR filter designer? This program seems to be a really nice "all in one" package for a fair price.
Hi Steffen
What was not working well in THIS horn was 1/4 for the mid drivers. I had always problems in the Tweeter response. No i am outside of the range, where the horn is more open, it works much better.
Christian
Even if I place the Drivers outside of the horn, i am in the 1/4 Range 😉 Crossover is @150Hz.
What was not working well in THIS horn was 1/4 for the mid drivers. I had always problems in the Tweeter response. No i am outside of the range, where the horn is more open, it works much better.
Christian
Hi Pelanj
I am working with different software. I have Acourate, Audiolense and new: crosslite+
Crosslite is preety nice! And especialy the comunity (privat whatsapp chat) is pretty nice and helpfull.
But be aware: 500,- is not incuding the FIR option. This is another 500,-. But it is realy strong in finding the delay between the drivers. Measuere once and adjust in silence 😉
Christian
Me too 😉
I am working with different software. I have Acourate, Audiolense and new: crosslite+
Crosslite is preety nice! And especialy the comunity (privat whatsapp chat) is pretty nice and helpfull.
But be aware: 500,- is not incuding the FIR option. This is another 500,-. But it is realy strong in finding the delay between the drivers. Measuere once and adjust in silence 😉
Christian
I've been reading the Crosslite+ manual this morning, and just now logged in to ask you how much the FIR toolkit costs...
Uhg, sorry to see it's an additional $500. Can you describe what the FIR package does? What kind of capabilities it has in generating FIR files?
Hi Mark
Audio and is just my Hobby… and to make sure, that you don‘t get wrong informations, it is maybe better, to ask the developer directly. He is very kind and open for everything 😉
You could use his contact page in the web:
https://www.fmscience.com.br/en/contato.php
Normally he will answer very quick! He has moved to Canada… so beware of the timezone 😉
Christian
Audio and is just my Hobby… and to make sure, that you don‘t get wrong informations, it is maybe better, to ask the developer directly. He is very kind and open for everything 😉
You could use his contact page in the web:
https://www.fmscience.com.br/en/contato.php
Normally he will answer very quick! He has moved to Canada… so beware of the timezone 😉
Christian
Hi Christian, thx. I'll contact the developer.
Yeah, audio is pure hobby for me too...although at times I've been pressured to sell some speakers or services.
But then I always say "why in hell would i want to ruin a good hobby?" !!! 😛
Yeah, audio is pure hobby for me too...although at times I've been pressured to sell some speakers or services.
But then I always say "why in hell would i want to ruin a good hobby?" !!! 😛
Second one is rolling in 😉
Hopefully I have some time on the weekend to share some measurements!
What I can say after so first times: the 4 faital (starting from 150Hz) playing much better and cleaner compared to the 12 Beyma midbass Horn!
Hopefully I have some time on the weekend to share some measurements!
What I can say after so first times: the 4 faital (starting from 150Hz) playing much better and cleaner compared to the 12 Beyma midbass Horn!
Nice ! Which faitals did you end up with? Looking fwd to your measurements.
Hey, I went ahead and got Crosslite+ ...just the Basic Tool-Kit so far.
Spent most of the week studying what all it can do....which is a hell of a lot, huh? 🙂
Here's my first go at using it for acoustic measurements ....made just today.
Syn11's 5-sections, at mouth indoors...with FIR corrections.
Hey, I went ahead and got Crosslite+ ...just the Basic Tool-Kit so far.
Spent most of the week studying what all it can do....which is a hell of a lot, huh? 🙂
Here's my first go at using it for acoustic measurements ....made just today.
Syn11's 5-sections, at mouth indoors...with FIR corrections.