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In the Forum: Horn-Loaded Speakers
In the Thread: Deep End DIY - Australian take one Macondo.
Post Subject: For sure my opinion shall means very little....Posted by Romy the Cat on: 7/4/2017
Jorge, your comment about
the physical instability of the pipe stack is well taken. I think if it is gone
from metal then it is possible to make it steady. In the way how Antony want to
do the pipe feet I think it might be possible to run guy wire to the top of the
pipes hip and to anchor them this way. I am sure the people who are good with industrial
design in metal can come up with some solution, it was never my objective to
think about it deeper. For sure the design need to be safe and to be more or
less portable. It is not the last factor is that it has to be earthquake proved.
It sounds ridicules but you do not want to have a minor earthquake and to find
your speakers flying to the floor and crash your amps and tonearms.
I never was a huge fun of
the pipe design that you and Anthony looks like embrace. There is none
contestable topological advantage that the pipes might be aligned in a curve to
make a very perfect time alignment. This is given. How practical it is I do not
know. I think it need to be aligned one pipe a time, starting from the bottom
during the pile assembly… Another point is the sharp rollback from the back
wall. The pipe design will have a permanent sharp enclosure mode deriving from
the one single reflection surface. The pipe des has it as well but there are
many reflection surfaces and the modes are kind of defused. With the pipe I
think the reflection mode should be only one and it should be more prominent than
with box. Saying all of it and understanding that you have good 2 inch foam in
the box, or perhaps 4” in the back wall, not to mention that you guys run it
all at very LF it is possible as well then my comment about reflection mode are
purely theoretical and will be negligible in practice. I never experiment with
pipes and do not know what work in them and what is not.
If I were building my system
again from scratch and would follow the same topology then I would probably go
with stackable individual rectangular boxes with one or with two driver, probably
one. The construction of the sealed boxes is VERY not expensive and if you
order them in bulk then you get a large discount. But it is me and I do not particularly
fide the pipes being more attractive visibly. Also, I am not sure how metal enclosure
would work for damping. For sure my opinion shall means very little for those
who desisted to use pipes and I am sure that it to make the use the pipes as an
objective and took this task seriously then it is possible to make the pipes to
work out well…
PS: Jorge, update you email adders if you would like to get your subscription notifications, you current email is bouncing.Rerurn to Romy the Cat's Site