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Thread: Altec 418b's + Karlson 15's = big fun

  1. #1
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    Altec 418b's + Karlson 15's = big fun

    So a friend of mine gave me a pair of slightly ailing Karlson 15 cabinets a while back . . . they needed the wings rebuilt, and DEFINITELY benefitted from some internal bracing. I had a reconed Altec Biflex woofer which sounded surprisingly good in the Karlson - I only had the one, so I stuffed the other with a random console woofer. . . I was using them for < 100 Hz
    duty, as I have a pair of homemade open baffle line arrays which use KLH fullrange drivers.....

    The franken - reconed Altec sounded very promising, but I never thought I'd score a PAIR of Altec's to stuff in them. . fast forward to this year's Kutztown PA radio swap . . . I traded an all original Heathkit AA-32 for a pair of Altec 418b's I'm no Altec expert, and didn't know until later that they are 'musical instrument' speakers. Some of the guys razzed me for what they thought was a silly trade . . .

    o contraire mon frere !

    I looked up the spec's upon returning home:

    100 db @ 1W/1m
    55 Hz res. freq.
    100 watt power rating

    YEE HAW !

    Because I'm only running the Karlson's for the sub-100 Hz duty, by way of a pro audio active xover, I wasn't worried about their original application . . . this combination thumps like crazy ! very accurate bass to my ears . . .

    I used them for bass bins at my wife's 10 year college reunion, and have also used them to relieve my JBL C38's of bass duty . . . these Altec's just eat up power like nothing else I've heard . . at the 'DJ gig' I had 200 Watts going to them, and they just sounded amazing . . .

    anyone else using Altec guitar speakers for 'non-standard' applications ?

  2. #2
    Senior Member diamondsouled's Avatar
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    "anyone else using Altec guitar speakers for 'non-standard' applications ?"

    Just me in my home made Valencia cabinets, 418B Altecs as well. Tuned the ports though. Used to be able to turn my Quad 405/33 full throttle with no clipping whatsoever. Too loud to take for long though, lol.

    Lar

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    Quote Originally Posted by markus8119
    YEE HAW !

    Because I'm only running the Karlson's for the sub-100 Hz duty, by way of a pro audio active xover, I wasn't worried about their original application . . . this combination thumps like crazy ! very accurate bass to my ears . . .

    I used them for bass bins at my wife's 10 year college reunion, and have also used them to relieve my JBL C38's of bass duty . . . these Altec's just eat up power like nothing else I've heard . . at the 'DJ gig' I had 200 Watts going to them, and they just sounded amazing . . .

    anyone else using Altec guitar speakers for 'non-standard' applications ?
    Thanks for the insight / it's nice when someone posts something around here that's completely foreign to the usual status quo .

    FYI, I'm sure Bill Woods ( aka, RCA Man ) would love to hear & measure those ( too bad he's typically up here in Ontario ) . He & Freddyi ( the Karlson Coupler evangelist ) can usually be found over at the H.E. forum of A.A. .

    - Interestingly, someone is using something like this combo below their "Exemplars" . This ( fairly ) recent thread , Click Here ! talks a bit about this arrangement .


  4. #4
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    Quote Originally Posted by Earl K View Post
    Thanks for the insight / it's nice when someone posts something around here that's completely foreign to the usual status quo .

    FYI, I'm sure Bill Woods ( aka, RCA Man ) would love to hear & measure those ( too bad he's typically up here in Ontario ) . He & Freddyi ( the Karlson Coupler evangelist ) can usually be found over at the H.E. forum of A.A. .

    - Interestingly, someone is using something like this combo below their "Exemplars" . This ( fairly ) recent thread , Click Here ! talks a bit about this arrangement .

    I'd love to measure them too, but I dont have the proper gear I like to think I have a good ear . . .

    I did see that Exemplar thread on AA, and have heard in the past Karlsons integrate really well with horns . . . . I have followed Freddy's exploits for YEARS and was very happy to finally snag a pair to play with.

    diamondsouled - I hear ya on the 'volume' thing . . they just don't break up no matter how high I crank 'em . . I swear they WANT to be spanked by 100 + watts

    here's a shot of them 'under test' with my DIY open baffle line arrays:
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