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Multi-Way Conventional loudspeakers with crossovers

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Old 7th February 2006, 02:35 AM   #11
bob_v5 is offline bob_v5  England
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how do you know which are the alnicos? I was given a pair of these and use them everyday so i dont really care, but it would be nice to know!
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Old 7th February 2006, 03:21 AM   #12
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Quote:
Originally posted by bob_v5
how do you know which are the alnicos? I was given a pair of these and use them everyday so i dont really care, but it would be nice to know!
Alnicos have soup can shaped magnets, ceramic ones are pancake -- the woofers have square magnets, i can't remember whether the mid-tweeters are round. Since the mid-tweeter comes out with the grills that is easiest to check

dave

picture of alnico mid-tweeter
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Old 7th February 2006, 03:22 AM   #13
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ceramic
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Old 7th February 2006, 03:24 AM   #14
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might as well post all the pics...

more alnico mid-tweet
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Old 7th February 2006, 03:27 AM   #15
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alnico woofer
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Old 7th February 2006, 03:29 AM   #16
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Old 7th February 2006, 03:30 AM   #17
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and a ceramic mid-tweet i thot i posted...
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Old 7th February 2006, 03:31 AM   #18
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Old 7th February 2006, 03:32 AM   #19
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alnico... i also have XO pics, label scans, and XO maps if anyone wants
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Old 7th February 2006, 07:51 AM   #20
rjb is offline rjb  New Zealand
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I have just been repairing a pair.
The bass speakers are definity worth getting, regardless of magnet. Just be aware that the cone "break up" is fairly low so a good crossover is required.
Unlike Dave, I am not so shook on the mid/tweeter. Leak made a number of diferent types for use with the bass driver, initially paper, then stressed foam/al sandwich, then a unit common with Wharfedale that had holes punched in the cone.
The sandwich version I know, and it is quite good, but rolls off quite badly at the top end, so Leak in their later models added a dome tweeter to make a three way.
The construction of the mid/tweeter is particularly nice, with the front assembly including cone and suspension bayoneting onto the magnet.
Leak also made an oval roughly 6x8 sandwich bass unit for their bookshelf speakers. I have one and would like another if anyone has one lying about.
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