| ART Array construction continues.... and a question [message #23712] |
Fri, 04 May 2007 21:27  |
Rich_M9999
Messages: 15
Registered: May 2009
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Chancellor |
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After a bit of a lag in available time to work on the ART Arrays, I was able to get a few minutes this evening to test fit the drivers and mount the baffles. Per Fred's instructions, they are drying overnight. More will be done tomorrow and Sunday afternoon. I hope to get braces in, wiring in, damping material in, and enclosure sealed this weekend. We'll see if that can be done. BTW, pics will be going up on my website this evening or tomorrow (server down at the moment). Question: I rounded the baffles with a 1/2 roundover bit. I read somewhere where this step is almost always a necessity.I'm not sure if Fred's instructions mentioned this step, but I went ahead and did it anyway. My question is this, will this affect the performance of the design? It is my understanding that a rounded baffle edge helps the sonic waves to wrap around the enclosure in a more uniform pattern. Maybe someone with much more knowledge than myself would have some advice here? As always, thanks in advance for your help!!!
Sincerely,
Rich
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| Baffle Edge Roundovers [message #23714 is a reply to message #23712] |
Mon, 07 May 2007 05:00  |
FredT
Messages: 704
Registered: May 2009
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Illuminati (1st Degree) |
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I hate to see a valid technical question go unansweered, but I haven't done any measurements or A/B listening tests to compare a speaker with rounded baffle edges versus one with sharp corners. I can only repeat what I have read, which is next to useless, so please somebody who has more hands-on experience (and a better technical understanding) jump in here. Does the typical 1/2" to 3/4" baffle roundover seen on many speakers make an audible difference?
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| Re: Baffle Edge Roundovers [message #23715 is a reply to message #23714] |
Mon, 07 May 2007 05:27 |
Marlboro
Messages: 403
Registered: May 2009
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Illuminati (1st Degree) |
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Vance Dickason in his 6th edition volume of the LOUDSPEAKER COOKBOOK sites research that startes that if the rounding isn't preety large, more than an inch(you have to put little wings on the edge or us a round ball, its doesn't do much good. Using a baffle made of 1/2 inch thick woof felt has a greater effect. Marlboro
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| Re: ART Array construction continues.... and a question [message #23756 is a reply to message #23716] |
Wed, 23 May 2007 00:54 |
Andy_G
Messages: 15
Registered: May 2009
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Chancellor |
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I have to argue with that a bit. A while ago when I had some pairs of tapered pipes floating about, I had one pair with square edge, and one pair with a 3/4" round edge. Both pairs used the same drivers and the same cross-over. I had them set up on A/B speaker switch of the amp. I tried them on several people who are into music in different ways, and all of them, without any prompting, commented that the ones with the round-over produced noticably tighter imaging. Now sure there may have been other unintentional differences etc. but I still believe that when possible, even a slight round-over can have a benefit, albeit slight. I don't think that many people would have had the chance to run this soort of listening test !!!
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