Cast not milled. You can get a custom-cast piece in Germany for not that much money. But that in 5 years time.
Right now I'm optimizing driver-radiation patterns.
Max's speaker and a few words...
- Thread starter GMKF
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Cast not milled. You can get a custom-cast piece in Germany for not that much money. But that in 5 years time.
Right now I'm optimizing driver-radiation patterns.
To give a rough cast design a Nice finish wont be cheap either and still reqiure quit a bit of milling to fit in the units properly
But you can overall make it "smaller" because you do not have to design in "aproachways" for the CNC mill.
Yeah I know its going to be f-ing expensive... but I have no plans to sell them commercially...
And only the bass enclousure will be cast. The top ones will be specific to the midrange or tweeter...
So I have a quick-change system for the top drivers- They would be fixed to the bass enclosure with big bolts (M12 or something along those lines).
Antivibration-mat in between.
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M 13 is not a standard you mean M 12.
IT would have been my Idea as well although not bolted .
My next speakerdesign if there Will be any , i might try a ribbontweeter for a change which can be filtered lower
IT would have been my Idea as well although not bolted .
My next speakerdesign if there Will be any , i might try a ribbontweeter for a change which can be filtered lower
Yes its cool , i could make another mtm with the same eff. / Roll off and Just place IT on top , basscabinets are costly to make
Yes i think so.
to be honest i only did the design, a guy at my previous work helped me with the computermodelling,
It was quite a Nice design , pin - hole construction through out , only bolts at the back , a Industrial dampning glue in between , the whole design glassbead blasted clear anodized.
Like the Boulder amp finish
to be honest i only did the design, a guy at my previous work helped me with the computermodelling,
It was quite a Nice design , pin - hole construction through out , only bolts at the back , a Industrial dampning glue in between , the whole design glassbead blasted clear anodized.
Like the Boulder amp finish
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And even better with arm Thick cables lol.
No no port remember IT was designed to be used with a bass cabinet so steeper mtm roll off would only be beneficiair.
Different tweeter placement gives off course different dispersion , do you have some arguments measurement s to back your claim up why off center is better?
Ah, I missed that you were using with bass cabs.
Claims? Every speaker building book, too many websites and pro speaker builders to count as well, modeling software for speakers & diffraction, etc. Here's a simple post about it.
Claims? Every speaker building book, too many websites and pro speaker builders to count as well, modeling software for speakers & diffraction, etc. Here's a simple post about it.
Seems like they dont state it as An absolute thruth either.
Diffraction ive paid high attention too, hence my ultra smooth rounded baffles.
A reason EA acoustics speakers might sound as free as they are might stem from the fact they have paid extreem attention to sloping cabinets.
With the HPL i use it would be very expensive due to exxesive waist material.
Diffraction ive paid high attention too, hence my ultra smooth rounded baffles.
A reason EA acoustics speakers might sound as free as they are might stem from the fact they have paid extreem attention to sloping cabinets.
With the HPL i use it would be very expensive due to exxesive waist material.
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Avalons also have that spacious character , also sloping cabinets to minimize diffraction, in speaker design there are a lot trade offs , especially if you want it not to be too expensive
By the way max whats the eff today of those AT drivers?
It used to be very low in the 84 db range , probably thats why the old arrakis was such a juice sucker
It used to be very low in the 84 db range , probably thats why the old arrakis was such a juice sucker
Another example of a minimum diffraction moulded design is the arrakis off course, not aluminium i know.
If you pour aluminium in a mould any shape is possible which is an advantage
If you pour aluminium in a mould any shape is possible which is an advantage
If you rounded over the corners of your cabinet a lot more it wouldn't be as important to offset the tweeter. Look at GMFK's design, that's a round-over. There is no question of whether or not it's happening, but rather how important it happens to be. It's obviously more key to MTM's because the tweeter is so symmetrical compared to say Rockports where it's at the top of a trapezoid-ish shape and there for not as symmetrical.
Another way around it is absorbing material around a tweeter (see Wilson and Ryan speakers).
Depends which rockport you pick , the arrakis uses Both symetrical mtm plus absorption plus a sloping cabinet, most top high end speakermanufacturers have a symetrical mtm , that a diy website says its not the best way , is another story.
Afaik max doesnt built a mtm
Afaik max doesnt built a mtm
Well, most high end speakers are somewhat underwhelming anyways. Most of the ones I've liked deal with diffraction in some way. A horn/waveguide would be another way to change the MTM so it wouldn't be as important.
The DIYa post was just the first one I came across. Generally speaking you'll find more knowledgeable people on there than in the industry (many of them are the people engineering the products you use) - it just takes time to figure out who is who. You can also find this information from speaker buildings books, various companies, and just knowing basic physics will tell you it's so. Again, the argument may be whether it's important or not. It has been shown that plenty of products ignore diffraction and some people like the harsher sounding tweeters. But many of them use round overs so they don't have to worry about it so much, too.
The DIYa post was just the first one I came across. Generally speaking you'll find more knowledgeable people on there than in the industry (many of them are the people engineering the products you use) - it just takes time to figure out who is who. You can also find this information from speaker buildings books, various companies, and just knowing basic physics will tell you it's so. Again, the argument may be whether it's important or not. It has been shown that plenty of products ignore diffraction and some people like the harsher sounding tweeters. But many of them use round overs so they don't have to worry about it so much, too.
An expert sells loudspeakers not books imo.
I tossed that Vance Dickinson Ls cookbook right in the bin.
I like to design and listen , not Just follow some formulas.
A real succesfull loudspeaker entrepreneur is to busy for forums anyway dont you think?
I tossed that Vance Dickinson Ls cookbook right in the bin.
I like to design and listen , not Just follow some formulas.
A real succesfull loudspeaker entrepreneur is to busy for forums anyway dont you think?
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