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Re: Replies for all that have replied so far... [message #23556 is a reply to message #23555] |
Thu, 15 March 2007 20:48 |
Aaron D
Messages: 18 Registered: May 2009
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Chancellor |
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I'd love to see pics. Post links on here if you can, I'm sure others would like to see what you have. As straight forward as the IDS concept is I think it could be designed a little less "plainly". I have a few ideas but there is only so much one can do w/ a tall skinny built on a base. Aaron
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Re: Anybody want to build a DIY IDS-25 clone (somewhat cheaply)? [message #23558 is a reply to message #23553] |
Thu, 15 March 2007 22:16 |
Aaron D
Messages: 18 Registered: May 2009
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Chancellor |
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I have kind of thought about something along those lines. For now I am mostly considering a design that will easily allow that as an option later on. If anything I am going to experiment w/ a single Fountek JP 3.0 per side. It will not give me true array performance but it will give a good idea of the high frequencies that I might be missing compared to no tweeter(s) at all. I think it will be a very effective demo but only at a given height and distance. I could easliy add a tweeter "panel" later on. Lots of things to consider... Ideally I would like to have these in my bedroom and build something very nice for the living room. I am trying to not get too carried away. Thanks, Aaron
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Speaking of Darren's project... [message #23559 is a reply to message #23543] |
Thu, 15 March 2007 23:10 |
Aaron D
Messages: 18 Registered: May 2009
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Chancellor |
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After looking at it again I remembered something that puzzled me a while back. How come the highs roll off like they do. It says in the text that a single driver measurement does not show the same behavior. I know drivers behave differently in arrays but I thought one of the effects was to actually flatten the response compared to a single driver. What gives? Thanks, Aaron
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its a bias.... [message #23560 is a reply to message #23558] |
Fri, 16 March 2007 05:25 |
Marlboro
Messages: 403 Registered: May 2009
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Illuminati (1st Degree) |
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My problem with a line array is the expense and the build time. Because of my desire to build using the benefits of tubing as opposed to boxes, and the need for each midrange to have its own separate but equal enclosure, the build time on my system was two years of weekends. I'm talking about 200 man hours. So when I think of arrays, I can't imagine NOT building the best possible circumstance for the money that I'm spending on speakers, due entirely to the vast amount of time it took to built them. Its a bias, I know.
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My bias [message #23565 is a reply to message #23560] |
Fri, 16 March 2007 11:39 |
Marlboro
Messages: 403 Registered: May 2009
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Illuminati (1st Degree) |
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I don't think its necessary to purchase the best speakers in a line array since, as Bill Fitzmaurice says, almost every speaker is pretty flat at low volume. So, when you use a lot of them, the flatness at low volume stays, since you have so many to cover the frequency ranges. I think you can design a quality array using Dayton Neo 20FA tweeters. I did, and I used 60 of them total. That's a huge number of tweeters to spread the sound through. I you use 8 planars on a side, that is a far cry from 30 domes, per side. Additionally, if you use a midrange that retailed for 12-20 bucks each, again you will get high quality sound since EACH they don't have to play loudly. My Sammi's were a great buyout at $3.50 from a regularly priced model of 12-18 bucks(you don't get a 10 oz magnet and an X-max of 3.6 mm for 49 cents!). Other companies besides PE that also participated in the buyouts are now selling them for 7-10 bucks each. Fine little speakers. Going below those levels may get you an OK system, but below the level that I would consider appropriate for all the work involved. Buying a 49 cent NSB midrange is not appropriate for all the work involved in my opinion. Always compare the quality to what you already have. I did. Marlboro
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I can agree w/ you for the most part [message #23570 is a reply to message #23565] |
Sat, 17 March 2007 14:28 |
Aaron D
Messages: 18 Registered: May 2009
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A design of this type can be fairly labor intensive. That is the whole reason I am not building a Selah kit for now. I could build it in a more or less standard fashion but for what the drivers alone cost I feel obligated to go all out on it. In the meantime this seemed like a fairly straight forward project that would not cost much for the performance achieved. A lot of the bang of the buck came from the fact that this is a buyout driver and is probably a decent deal @ the $10.50/each price. If I get 100 of the the price drops over 40%. Couple this with a decently built enclosure (nothing over the top) and the price is about $350/pair. I agree with you about factoring in cost/effort/performance in any project. In something like this I can make some compromises dues to the lower cost and simple enclosure construction. I still think the performance would be impressive but I am doubtful that it would be amazing. For amazing performance I know I will have to spend $2k+ on a Selah kit. Later, Aaron
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