optimal phase plug?
MarkMck
In the interest of futhering this effort, my wood lathe and some time are available for optimising the phase plug. I will turn to (your) pattern a range of phase plug profiles. The results to be shared on this forum. I'm willing to contribute to several rounds of evaluation in the effort to better define the bullseye and understand the benefits. e-mail me
MarkMck
In the interest of futhering this effort, my wood lathe and some time are available for optimising the phase plug. I will turn to (your) pattern a range of phase plug profiles. The results to be shared on this forum. I'm willing to contribute to several rounds of evaluation in the effort to better define the bullseye and understand the benefits. e-mail me
Greetings all,
As I did state within that long post, there is no harm in damping your baskets. If you want to duct seal before mounting (and therefore even listening in final form) go right ahead. You do not need me to advise or help or direct.
I am pursuing a particularistic theory of reproduction accuracy. I am trained in doing research. I am trained in science (and I even know what science is and how one does science). I control for variables. I cannot double blind and so I am always skeptical of heard differences that cannot be independently verified by measurement. I have invested in test equipment of high precision and sensitivity. I know that equipment's capabilities and limitations. I try very hard to know what I am changing and what I am holding constant.
I may not always want to do the same modifications as others do. I will more than likely publish modifications that others do not. I will always publish test results showing what those modifications do to the performance of the driver.
There are many long standing ideas about how to design loudspeakers and how to improve loudspeaker performance that I find no basis for. Yet I will not seek out their threads and force my perspectives upon them. Yet if you come to a thread I started and ask me what I think about this or that idea, I may reply if I believe that reply will be helpful.
I apologize if that challenges your beliefs, but that is the foundation of science. See Karl Popper for detailed explanation of science and sophisticated falsificationism.
Good desiging and good building,
Mark
As I did state within that long post, there is no harm in damping your baskets. If you want to duct seal before mounting (and therefore even listening in final form) go right ahead. You do not need me to advise or help or direct.
I am pursuing a particularistic theory of reproduction accuracy. I am trained in doing research. I am trained in science (and I even know what science is and how one does science). I control for variables. I cannot double blind and so I am always skeptical of heard differences that cannot be independently verified by measurement. I have invested in test equipment of high precision and sensitivity. I know that equipment's capabilities and limitations. I try very hard to know what I am changing and what I am holding constant.
I may not always want to do the same modifications as others do. I will more than likely publish modifications that others do not. I will always publish test results showing what those modifications do to the performance of the driver.
There are many long standing ideas about how to design loudspeakers and how to improve loudspeaker performance that I find no basis for. Yet I will not seek out their threads and force my perspectives upon them. Yet if you come to a thread I started and ask me what I think about this or that idea, I may reply if I believe that reply will be helpful.
I apologize if that challenges your beliefs, but that is the foundation of science. See Karl Popper for detailed explanation of science and sophisticated falsificationism.
Good desiging and good building,
Mark
Mongo no like positive so close to negative.
To quote a luminariry...
and the common term used for this is "downward dynamic range" a term i 1st heard from Allen Wright.
It is the ability of a device to produce low level detail in the precense of a much larger signal. FR & typical distortion measurements don't tell us anything about this, and even noise floor measurements are not necessarily revealing since it has been clearly shown (at least in the case of vinyl replay) that the human ear can hear things below the noise floor.
dave
and the common term used for this is "downward dynamic range" a term i 1st heard from Allen Wright.
It is the ability of a device to produce low level detail in the precense of a much larger signal. FR & typical distortion measurements don't tell us anything about this, and even noise floor measurements are not necessarily revealing since it has been clearly shown (at least in the case of vinyl replay) that the human ear can hear things below the noise floor.
dave
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