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In the Forum: Horn-Loaded Speakers
In the Thread: Another time aligned 5-way horn project
Post Subject: Make up your mind.Posted by Romy the Cat on: 10/19/2015
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 Murataltuev wrote:
3. GOTO SG-146LD in 46horn 50-400Hz
I've added 0,7m length to 2m horn, so now my mid-bass horn has 4" throat and 1x1m mouth and 2.7m length.

 
4" throat into 1x1m mouth…hmmm, you hardly will be able to get from it 50Hz. Even if you go for ¼ size  and 2 drivers then I think it is a bit too small. Also, looking at the picture it looks like your horn open up too soon. For exponential profile you would have a looooooong neck with very slow opening right after throat. I do not see it.

 Murataltuev wrote:
Strange, that I still have drop at 200Hz, but now I think that it is some room mod, so tomorrow I'll try to move horn around and check what will be changed.
OI would not worry about the drop at drop at 200Hz. I am pretty sure that you have some problem with exit of driver and horn throat integration. Anyhow, it is just a bug somewhere, you will find and fix it.

 Murataltuev wrote:

I really like the sound I've got today. My 1st experiment was also good, because first time in my life I heard right tone for low octaves of piano, but I also had some dirty sound around low-mids, because 1st order was not enough to remove low-mids from mid-bass horn.Now with 2nd order low-mids are clear. Another impressive fact, that I don't feel the need for ULF channel! Whole orchestra sounds complete and full! May be resonance at 27Hz introduces some ULF waves.

…and you got it from listening 1sq m mouth as a lower transducer. Well, give to yourself more time and try to explore other feelings then immediate excitement.
 
 Murataltuev wrote:

The only thing is I feel that upper bass can be better with shorter horn. Because for some piano notes I hear same kind of dirt like I had in my 1st experiment. So, better to remove upper bass frequency from mid-bass horn and introduce dedicated upper bass channel. May be with the same GOTO 146 driver!I still have no idea how to put another 1m mouth horn and keep this mid-bass horn, but I'll introduce some ideas later.

 
I have no idea what you are taking and why you run your Goto to 500Hz. You had at the bottom of your horns an upperbass horn why don’t you use it?

 Murataltuev wrote:
Another concern I have is about time-alignment...is it OK if mid-bass driver will be placed about 1m back from all other drivers ?

 
Well, I prefer you your to answer this question. You have horns, try them and make up your mind.
 

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