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Old 6th February 2013, 12:17 PM   #41
xrk971 is online now xrk971  United States
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They look great! Very nice job. If they sound this good before break in, you are in for a real treat then. Those are some big speaker boxes.
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Old 6th February 2013, 12:29 PM   #42
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Nice work.
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Old 6th February 2013, 12:30 PM   #43
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Quote:
Originally Posted by xrk971 View Post
Those are some big speaker boxes.
No they're not.
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Old 6th February 2013, 12:30 PM   #44
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Thanks!
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Old 6th February 2013, 12:31 PM   #45
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Originally Posted by Scottmoose View Post
No they're not.
I think they are the upper limit to what would be acceptable in that room.
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Old 6th February 2013, 03:47 PM   #46
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Thanks for sharing. I too got a pair of Alpair 12p already in a bookshelf cabinet. The details coming from the speakers are amazing. Since I had been using a KEF uniQ, at first I thought there was something wrong with the speaker...
Pretty amazing that with all the high tech material available, the Alpair12 uses paper for the cone.
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Old 6th February 2013, 04:34 PM   #47
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What high technology materials are you referring to? Papers are not all created equal; composition of the mix, thicknesses and structure are all critical.

Last edited by Scottmoose; 6th February 2013 at 04:39 PM.
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Old 6th February 2013, 04:36 PM   #48
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Congratulations on your build Ron.

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Pretty amazing that with all the high tech material available, the Alpair12 uses paper for the cone.
Some of us like paper.

jeff
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Old 6th February 2013, 04:37 PM   #49
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It has been proven time and time again that paper is the best material for the cone. As Scottmoose hit on, the quality and implementation are key.
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Old 6th February 2013, 04:58 PM   #50
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Actually it hasn't. Again, it's a matter of implementation and design requirements.

Many people like paper cones, and they often make many assumptions about cone materials. But 'best' is a target that varies depending on what it is you want to do. For example, W.E. etc. back in the day preferred metal. But there are some things that paper cones can do that are harder to do with metal cones, and visa versa. Same applies to many other material types. Cone profles and suspension design also play a major role in this. Take the current generation A12P under discussion here. The reason paper is used is that there aren't any other materials available that have the necessary balance of properties (stiffness, resonant characteristics, weight et al) that will achieve the desired response & efficiency with that cone profile -not any that are realistically affordable anyway. Kevlar, fiberglass, carbon etc. won't do it. Metal gets closest, but even then, weight goes up, efficiency down, & with the very flat cone profile and the way the suspension is designed, where the spider does the majority of the work, it runs into stability issues.

Last edited by Scottmoose; 6th February 2013 at 05:03 PM.
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