Tested the simulation using the software
Without
With Phase Plug (As reflector)
Probably a cone shape phase plug has little effects on the high freq dispersion.
Without
An externally hosted image should be here but it was not working when we last tested it.
With Phase Plug (As reflector)
An externally hosted image should be here but it was not working when we last tested it.
Probably a cone shape phase plug has little effects on the high freq dispersion.
Just completed the testing of the phase plug
Waiting for the enclosure to be done up this weekend so I can perform all the required measurements
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Waiting for the enclosure to be done up this weekend so I can perform all the required measurements
At the same time, trying out a modular basket frame design
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
https://www.youtube.com/watch?v=NgK6_dMnQ_M
Waiting for the enclosure to be done up this weekend so I can perform all the required measurements
I can't wait.
This is super cool! I can't believe how great they sound from the youtube video.
That damper design is incredible. I never knew anything like this existed.
I could never do anything even close to this, so please don't take this as me being critical, but have you ever heard of Arboform? It's about 90% wood and has been dubbed "liquid wood". You buy the pellets from the company which you then injection mold into your desired shape. I always wondered why we've never seen this take over the polypropylene cone designs.
If you could pull this off, to my knowledge, you would be the first person to produce a speaker driver using Arboform!
The only audio product I've seen use Arboform is Audioquest on their Nighthawk headphones.
https://en.wikipedia.org/wiki/Arboform
http://www.tecnaro.de/english/avsk.htm
That damper design is incredible. I never knew anything like this existed.
I could never do anything even close to this, so please don't take this as me being critical, but have you ever heard of Arboform? It's about 90% wood and has been dubbed "liquid wood". You buy the pellets from the company which you then injection mold into your desired shape. I always wondered why we've never seen this take over the polypropylene cone designs.
If you could pull this off, to my knowledge, you would be the first person to produce a speaker driver using Arboform!
The only audio product I've seen use Arboform is Audioquest on their Nighthawk headphones.
https://en.wikipedia.org/wiki/Arboform
http://www.tecnaro.de/english/avsk.htm
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Thanks for the information, now then I realized how people make those wood looking cast. Interesting stuff about Arboform, maybe I might need to find a source where to get hold of these raw Arboform materials. I also find it interesting to use this to cast it into speaker enclosures
Thanks for the information, now then I realized how people make those wood looking cast. Interesting stuff about Arboform, maybe I might need to find a source where to get hold of these raw Arboform materials. I also find it interesting to use this to cast it into speaker enclosures
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Thanks
Will update soon as I pending a adapter for another horn tweeter measurement. As I need to bring my measurement kits over to another place for measurements, not going to waste the trip to just do one measurement for one driver
*Update: Found some mid range shout even after so many hours of running in.
So I have been doing quite a bit of investigations, and probably the main issue is with the whizzer cone which is also found in the old lowther whizzer cone design(aka Lowther Shout).
Lowther America Prices
Will be trying out some cotton damping by stuffing them between the whizzer cone and the main cone to see if the peaky-ness can be resolved.
I also considering folding the whizzer cone with a bend edge like Lowther's
So I have been doing quite a bit of investigations, and probably the main issue is with the whizzer cone which is also found in the old lowther whizzer cone design(aka Lowther Shout).
Lowther America Prices
Will be trying out some cotton damping by stuffing them between the whizzer cone and the main cone to see if the peaky-ness can be resolved.
I also considering folding the whizzer cone with a bend edge like Lowther's
Some quick measurement I did, I might have to add a correction network to even the response out.
An externally hosted image should be here but it was not working when we last tested it.
You can also try to "kill" the shout by making maybe 3 small incisions into the edge of the whizzer cone. That way, the energy that would otherwise bounce back from the edge of the whizzer cone to the center and then back and forth, could partially dissipate in the 3 "flaps" the incisions form.
Writing this, I so see that I'm not an engineer. :S
Zigzag pattern of the edge could also work, and even foamy pads, glued underneath, but it goes against my ideas to add mass to a speaker.
Good idea, I was also thinking of trimming down the whizzer cone size. Lots of energy dissipating from it when I tried putting my finger on it.
I will try the foam pads before I decided to trim and cut the whizzer cone.
Thanks
By trimming, do you mean making the whizzer smaller? That won't work, I think. It will only take your shout higher, and you will lose some of the "lower" whizzer freqs.
You need to disrupt bell modes in the cone. And you kill bell modes by breaking the bell.
Sometimes I wish I knew what I'm talking about, and to be able to express better...
You need to disrupt bell modes in the cone. And you kill bell modes by breaking the bell.
Sometimes I wish I knew what I'm talking about, and to be able to express better...
By trimming, do you mean making the whizzer smaller? That won't work, I think. It will only take your shout higher, and you will lose some of the "lower" whizzer freqs.
You need to disrupt bell modes in the cone. And you kill bell modes by breaking the bell.
Sometimes I wish I knew what I'm talking about, and to be able to express better...
I was thinking of trimming the edges, making them look like a flower. I saw this in on of the old lowther design.
something like this:
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