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AE IB15
Mar 8, 2008 14:22:26 GMT -7
Post by chrisbee on Mar 8, 2008 14:22:26 GMT -7
I'm quite sure this is a function of the extremely stiff spider on the original AE drivers. I think it's going to be problematic to get a good match between the different sets of drivers. Are you running out of Xmax with the new drivers, or is this for 'bragging rights"?.... Of course it's bragging rights! ;D I already have more power and extension than anyone could wish for. But I can't just leave these four old drivers in their boxes. It's such a waste!
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AE IB15
Mar 8, 2008 14:32:06 GMT -7
Post by bricktop on Mar 8, 2008 14:32:06 GMT -7
As an engineer it is my nature to garner as much information before I make any choices and do anything...and as a newbie in DIY audio, my picking of the brains of this forum is essential in my mind to make the right decision regarding both driver selection and configuration. I may be a bit incessant in gaining the proper information, but that is why I was trying to use available tools to evaluate things. My problem is in the interpretation...as I have no practical experience in such things. I would prefer not to make a decision about drivers without an understanding of the decision. I could pose a question such as this: Which would be better...4 AE IB15 or 2 ficar IB18s, but I imagine such a question would garner answers that would straddle both sides of the fence and only proceed to frustrate me.
OK, you say Fs is not that important...here is a question that may also cut to the chase. Is the WinISD modeled AE driver responses greater extension only based on the Fs or a combination of parameters?
Thank you, Jonathon
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AE IB15
Mar 8, 2008 14:37:32 GMT -7
Post by bricktop on Mar 8, 2008 14:37:32 GMT -7
Instead of me continually asking questions, what is a good book to read about speaker building, then if I have any questions I can be a bit more educated about it?
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AE IB15
Mar 8, 2008 15:22:23 GMT -7
Post by ThomasW on Mar 8, 2008 15:22:23 GMT -7
OK, you say Fs is not that important...here is a question that may also cut to the chase. Is the WinISD modeled AE driver responses greater extension only based on the Fs or a combination of parameters? It's not that Fs is unimportant, it's just one of many variables. Speaker design is an algorithm that uses all the T/S parameters. The sims run the numbers for a driver mounted in anechoic space. No one I know lives in an anechoic chamber... The standard book recommendation is "The Loudspeaker Design Cookbook: by Vance Dickason. Personally I think it's a PIA to read, but being an engineer you might appreciate all the formulas and graphs... IMO one can learn a lot reading Keele's papers ... www.xlrtechs.com/dbkeele.com/papers.htmor just wandering around Siegfried Linkwitz's website www.linkwitzlab.com/frontiers.htm
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Post by jasonshep on Mar 9, 2008 1:08:46 GMT -7
Hi bricktop, I would suggest that either the AE or FI drivers will give you the extension & power you're looking for. I believe it is the infinite baffle alignment that provides such great results more than minor differences in t/s parameters of drivers, of course you need drivers that are designed for ib use & both the AE's +FI's get fully recommended by users here. I chose 15"s so that i could fit my manifold under a bed in the room obove,went with the AE ib15" & can honestly say that it is the most complete bass performance i can imagine,deep,tight,punch,slam,pressure in room,articulate,subtle, you name it,it does it
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AE IB15
Mar 9, 2008 17:40:21 GMT -7
Post by diycable on Mar 9, 2008 17:40:21 GMT -7
You don't need a book. Most of the information in something like Vance's book isn't going to help you with your choice anyway. Am I the only one who thinks it is poorly written? Not to knock on Vance but I didn't get much from it and rarely refer to it for information. Dr. Joe's measurement book is much better.
Buy the AE15s. People have had good results with them, its fairly priced and 15"s are easier to build a manifold for than the 18"s. It has the right parameters to make a good IB driver. If you need more output you can add another bank of 4 drivers and keep adding them until you don't need any more. I doubt you will need more than four.
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AE IB15
Mar 9, 2008 20:43:40 GMT -7
Post by bricktop on Mar 9, 2008 20:43:40 GMT -7
Thanks for all the advice guys. This forum is really great. I think the general consensus is right...either speaker will perform admirably, and I am certain it will be much better than I currently use.
Thanks, Jonathon
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