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Romy the Cat
Boston, MA
Posts 10,132
Joined on 05-28-2004
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Post #:
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10
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Post ID:
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27139
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Reply to:
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27138
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To be continuing for sure.
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Actually, I used laser BMS
multiple times, and I found it completely useless. Yes, I perfectly can set up
my horns with laser us and down or left and right, but I found that and my new
difference, if one of the corns will be even inch higher or lower does not make
too much difference. What I am after is to align the axis of the horns, and to
assure that two horns are complete parallelism. I cannot do it this a laser pointer with high
degree of precision. When I installed my laser pointer at listening position
and tripod, my laser point has very high-quality range Finder, I can mark
exactly position of the laser point at the right and left horn of the same
channel. Then, When I angle the horn at let's say 1 degree in any direction.
The position of the laser pointer moved very slightly. I was using an extension
method, taped, a mirror and reflected the laser pointer to another wall, and
this way I had March larger of laser point movement in case I angle the horn. But
this method seal does not give me that assurance that the horn pointed directly
to two specific reference location. This way I can align right and left channels
to be pointed relative to each other in the same direction but it will not be
assurance that their horns pointed to the best position as a reference baseline.
In case I use multiple channels on right and left it is very lengthy ceremony two
find all proper right left and up and down deviation of laser point reflection.
I did it in the past and I still believe it is the wrong way to do it as there
is absolutely no assurance that my mirror between channels will be attached
perfectly 3D perpendicular to the horn axes. It is not a baffled loudspeaker
and there is no reference vertical surface on the horn to attach the mirror.
Regarding sensitivity. I have no idea what is
the Red’s sensitivity. I guess I can measure it and I might do it. What however
I think it's important to understand, at least the way how I see it, that 100Db
sensitivity with ribbon and 100DB sensitivity with RED are different animals in
my view. The sensitivity is like a winter sun, it shines but it does not
produce warms. They kind of have an intellectual satisfaction by feeling that high
sensitivity assures dynamic range but there is something more sinister with
this and I do not know what it is. It does not feel dynamic or to put it better
its produces different type of dynamics which for whatever reason flushed you
with water but you are still thirsty. It is possible that I have not the best
experiences because I drive in with SET. When I was choosing loading of my Water
Drop Twitter I was mostly driven by measurements, proper integration with S2
and overall proper performance. I think at that time I did not have my
subjective perception is high and the scale of my reference points as I have
now. It is fair to say that later things change over the last 20 years, :-) Yes,
I agree that measurement wise ribbons are spectacular but as Lamm used to teach
me: if you measurements are not aligned with your subjective perceptions then
you measure wrong things. I do not have the technical expertise to dig deeper
into ribbons measurements. Also it is not my objective to discover Truth about ribbons.
All the time need to find proper high frequency transducing for this specific
system to satisfy my personal very subjective perception. It is very important
to note that the problem I'm trying to address, namely “Macondo doesn't love me”
in reality does not even relate to twitters. At this point I just choose the twitters
as a “guilty” party and I am trying to address one hypothesis at time.
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
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