Latest incarnation of my open baffle/dipole speaker

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#21
johninCR said:
I've been looking around at room treatments. I've seen boards filled with angular and wavy cut pieces (too much work, not easily adjustable, but almost artsy looking), sound shutters (3 flat boards on louvers, adjustable but ugly), the things you copied (artsy looking, adjustable, but takes up floor space) among other things. The audio objective of all these things is to diffuse reflected sound waves.

My main idea would be to come up with a variety of things that are artistic, functional, and if possible, adjustable including both things that absorb and diffuse. These would include things ranging from helmholtz resonators for bass traps, to paintings that act as absorbers and/or diffusors. The goal would be to end up with a room that is well treated acoustically and remain visually appealing and tastefully done.

5 of your things in a room would be too much for me from a visual standpoint. 2 more might be ok, but I'd hang the others from the ceiling and make them able to pivot on the top piece strung to the ceiling or wall mount them and pivot on the "arm".

I remember reading somewhere that alternating absorbtion and diffusion is a good strategy and that it's important to try to deal with first reflections, so you may want to add a couple of absorbers and some bass treatment before adding more diffusors.
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I am moving soon so I will be looking into other treatment options as well. Please keep us posted on your choices and results.
 
#22
tom1356 said:



I am moving soon so I will be looking into other treatment options as well. Please keep us posted on your choices and results.
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Will do. The absurd prices that I see these snake oil salesmen charging makes me so angry that I'm seriously considering getting in the business to develop and sell a variety of room treatments that are effective and fairly priced. What I consider fairly priced would be at a point where when someone looks at it and says "Yea, I could probably make that myself but it wouldn't cost much less, so I'll just buy it."
 
#24
I think he was more scientific than you think. I've made a couple of pairs of dipoles and had to let the midrange run fullrange. I tried low pass filtering and it screwed up the integration of the bass to the mids. With dipoles you don't sacrifice the clarity and quality of the sound just to pick up a little extra SPL.
 
#25
bishopdante said:


But... But... if you were to use a bigger amp and a Wagner record... Flying cone syndrome!
At least highpass it!

(I bet your decision was not so much scientific but that you just wanted to hear them as quickly as possible)
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Well thats why it's called a system. If I build every part of it I can make it work properly together. I will not be using bigger amps in this system. The mids are so overly built it would be very uncomfortably loud for me to launch a cone. The magnet is 4 1/2" D the cone is 4 3/4" D

johninCR said:
I think he was more scientific than you think. I've made a couple of pairs of dipoles and had to let the midrange run fullrange. I tried low pass filtering and it screwed up the integration of the bass to the mids. With dipoles you don't sacrifice the clarity and quality of the sound just to pick up a little extra SPL.
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Bingo!
The system plays louder than I would ever want to listen to it right now with no signs of distress.
 

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