Hello everyone,
I am relatively young in the audiophile world, with my main spending habits being headphones and more convenient audio. I currently own a Schiit stack and run a pair of Hifiman Sundaras and a pair of Meze 99 Classics.
I've recently gained interest in amplifier repair and am interested in building a DIY foam panel speaker.
I am relatively young in the audiophile world, with my main spending habits being headphones and more convenient audio. I currently own a Schiit stack and run a pair of Hifiman Sundaras and a pair of Meze 99 Classics.
I've recently gained interest in amplifier repair and am interested in building a DIY foam panel speaker.
Welcome to diyAudio :^)
XRK certainly has done a lot of work on foam core for construction.
As to that video, one has to know more than this guy to know where he is leading you astray. Intesting to listen too, maybe, but double check everything before taking him at what he says.
DMLs, a “statistical” loudspeaker that operates in chaotic mode at all frequencies all the time. The developers (a spin-off of Mission IIRC), spent 15 years developing, promoting, and licencing DMLs. As soon as the patents expired the company shuttered their doors (never a proper commercial success). As alluded to in the video, they tend to have wide distribution at all frequencies, one of th efirst practical uses was as Tannoys. Big sheets hung from the ceiling and exciters attached. A ton of information buried in the AES archives. You can turn almost any flat surface into a sound radiator.
dave
XRK certainly has done a lot of work on foam core for construction.
As to that video, one has to know more than this guy to know where he is leading you astray. Intesting to listen too, maybe, but double check everything before taking him at what he says.
DMLs, a “statistical” loudspeaker that operates in chaotic mode at all frequencies all the time. The developers (a spin-off of Mission IIRC), spent 15 years developing, promoting, and licencing DMLs. As soon as the patents expired the company shuttered their doors (never a proper commercial success). As alluded to in the video, they tend to have wide distribution at all frequencies, one of th efirst practical uses was as Tannoys. Big sheets hung from the ceiling and exciters attached. A ton of information buried in the AES archives. You can turn almost any flat surface into a sound radiator.
dave
Thank you Dave! I'm definitely not expecting the ultimate speaker from the panel style build, but it seemed like a good place to start to experiment about how sound interacts and resonates with materials.
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DML is not a good place to start. It is counter in operation to most of what we want.
Resonances are usually to be avoided, in a DML it is all about the statistical distribution of a series of resonances.
Better to start with a simple 1-way speaker, what you will learn from your first build is usually VERY large. And few stop at one build.
dave
Resonances are usually to be avoided, in a DML it is all about the statistical distribution of a series of resonances.
Better to start with a simple 1-way speaker, what you will learn from your first build is usually VERY large. And few stop at one build.
dave
Welcome to the forums...as a science-type guy, I wrote extensively in the comments about this guy in your noted video & tore into his seeming aversion to science & "numbers". Don't trust your ears to hear accurately, they are not to be trusted....we have machines, devices, processes that can "hear" far better than is remotely possible with our own simple organic ears. If something sounds "bad", it is not the science that is bad, it is another probably unrelated source...I have heard lots of really bad music, as it is poorly recorded and/or mixed.
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Howdy from Calgary and welcome to DIY Audio.
If you're into speaker building, I'll toot Dave's horn and point out Frugal-Phile: https://www.frugal-phile.com/index.html
Years ago I built a pair of mMar-Ken6 boxes and put an Alpair 6P in it (which is possible if you remove the centre port spacer). The result was very good. So good in fact that my mom ran off with the speakers last she was here. Or if you're into dipole speakers, this is a good place to start: https://www.linkwitzlab.com/
Tom
If you're into speaker building, I'll toot Dave's horn and point out Frugal-Phile: https://www.frugal-phile.com/index.html
Years ago I built a pair of mMar-Ken6 boxes and put an Alpair 6P in it (which is possible if you remove the centre port spacer). The result was very good. So good in fact that my mom ran off with the speakers last she was here. Or if you're into dipole speakers, this is a good place to start: https://www.linkwitzlab.com/
Tom
And my mantra is trust your ears (while knowing that you can be deceived).
To quote Floyd Toole:
dave
Thank you all for your comments. I'm looking forward to more exposure from the more experienced folks.
I do have one silly question, how do I like people's posts? TIA
I do have one silly question, how do I like people's posts? TIA
Ah, perhaps it happen until you are free to post without moderation. Every new guy here has about 10 or 20 post to do with check from mods. After it you are free. More or less, it is so.
We have decided to promote lucasgg. (Also, one can't 'like' their own posts.)
"Two ears and a brain are massively more analytical..." Oh please, don't be absurd. Tell you what, I'll put you in an anechoic chamber, I'll have you sit on a stool two meters away from a loudspeaker & I'll play a test tone & maybe some half octaves and multiple octaves ...tell me what primary frequency it is, & the decibel levels.
"...we have high opinions of our human biology, when in fact we should not". "human perception systems are rife with of always getting it wrong." "...that's why we have machines…".
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"...we have high opinions of our human biology, when in fact we should not". "human perception systems are rife with of always getting it wrong." "...that's why we have machines…".
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