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Thread: More Adventures in Speaker Re-foaming

  1. #11
    Join Date: Dec 2008

    Location: Yorks

    Posts: 16,643
    I'm Nobody.

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    Nice job Chris. Well done..

  2. #12
    Join Date: May 2008

    Location: Lancaster(-ish), UK

    Posts: 16,936
    I'm ChrisB.

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    Cheers Andre - I always fancied a pair of these, or preferably the ones from higher up in the range with the wood veneers. They would have gone nicely with the parade of AR turntables I had through my hands at the time!
    I've been listening to them all morning & there ain't much wrong with 'em for £5.50 plus the cost of the new foam rings!

  3. #13
    Join Date: Jul 2010

    Location: North Cambs UK, Earth, Sol, Orion - Cygnus arm of galaxy

    Posts: 11,165
    I'm MadeOfDeadGiantStarsThatExplodedEonsAgo.

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    Nice work Chris I just know you are hoping to find some AR9s in need of fettling
    Bests, Mark



    "We must believe in free will. We have no choice" Isaac Bashevis Singer

  4. #14
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,618
    I'm Geoff.

    Default Replacing cone surrounds.

    Just a few points. When gluing foam surrounds be sparing with the adhesive as if it soaks into the foam and receives any pressure thereafter the cellular structure will bond to itself internally and leave flattened spots (it happened to me). Good contact adhesives are best for most re-surrounding jobs. Obviously check your alignments, but critically, make sure you have the surround tensioned evenly all the way round or you'll get kinks/creases. Al the best, Walpurgis.

  5. #15
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,915
    I'm Steve.

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    Nice job indeed.

    I did my Tannoy 15" 3828's way back when and that worked out nicely too.
    System: Turntable : SP10 MKII slate plinth, Custom Ebony tonearm board, Arm : Fidelity Research FR64s, Cartridge : SPU Royal N. SUT : Lundahl 1:13. Phonostage : Icon Audio, Streaming RPi/Kali reclocker -> I2S -> DSP XO / Pre / 4 DAC's : WAF Najda, 5 Poweramps : 3 x EL84 SET's, 2 x D class amps on bass channels, Speakers : 5 way front loaded horn system: 2 X Tapped sub 15" LF drivers / 2 X Exponential mid bass 15" drivers / Tractrix 200Hz mid horns with JBL2482's, / Tractrix 550Hz upper wooden horns with factory refurb'd Vitavox S2's / Raal Lazy Ribbons as high frequency tweeters. Wires: good silver or good copper where best suited. DIY RCM.

    Maker of tonearm boards, armpods, Tannoy GRF style speaker cabinets, horn speakers, counterweights and more.
    For more information about my creations and products please click below

    http://fosworld.wixsite.com/magna-audio & on Instagram https://www.instagram.com/magna_audio/

  6. #16
    Join Date: Feb 2011

    Location: Ramsbottom

    Posts: 637
    I'm Alan.

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    Well done Chris,
    Lovely neat job, I didn't know about that nifty battery thingy, saves you cutting the dustcap.
    I hope your speakers sound great.

    regards Al
    My system,

    Cartridges Lyra Delos, Audio Technica AT33EVmc, AT 24 mm
    Turntable Thorens TD 124 Mk2, in a Jim Campbel plinth,Audio Technica 1503 Mk3 arm
    CD player Technics SL-PG490
    Cassette deck Yamaha KX 530
    Moving Coil Amp Albarry MCA 11
    Pre-amplifier Albarry AP 11 (battery powered)
    Power amps Albarry M1108 Mono-blocs
    Speakers Allison 3 Corner units, Allison 6 stand mounted cubes
    Interconnects AVT Matrix 6 and OFC short ones
    Mains distribution Music Works Recoil 6 gang and mains leads
    Tables MusicWorks ReVo acrylic stand, Quadraspire Acrylic shelves (cryo'd legs) acrylic Response Mini under mains block.
    Speaker cable Chord Rumour (Cryo'd)
    RCM Okki Nokki
    https://www.facebook.com/groups/1586...homepage_panel

  7. #17
    Join Date: May 2008

    Location: Lancaster(-ish), UK

    Posts: 16,936
    I'm ChrisB.

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    I've been indulging in a bit more of this refoaming nonsense lately - resurrecting a pair of small bass drivers.
    I'll put some photos on a new thread in a day or so - the refoaming is part of a much bigger job - this adventure is more of an attempt to completely transform a pair of little monitors with all sorts of ideas that have been brewing in my mind for years.
    Back to the refoaming work - these speakers have the inner edge of the rings glued to the back of the cone and it proved a bit tricky to deal with. I think I've managed OK with it in the end, but I can't help thinking there might be a trick or two to make it an easier job. I wonder if anyone has any ideas?

    By the way, the battery trick worked a treat once more!

  8. #18
    Join Date: Dec 2011

    Location: South downs

    Posts: 3,477
    I'm James.

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    Quote Originally Posted by The Grand Wazoo View Post
    I've been indulging in a bit more of this refoaming nonsense lately - resurrecting a pair of small bass drivers.
    I'll put some photos on a new thread in a day or so - the refoaming is part of a much bigger job - this adventure is more of an attempt to completely transform a pair of little monitors with all sorts of ideas that have been brewing in my mind for years.
    Back to the refoaming work - these speakers have the inner edge of the rings glued to the back of the cone and it proved a bit tricky to deal with. I think I've managed OK with it in the end, but I can't help thinking there might be a trick or two to make it an easier job. I wonder if anyone has any ideas?

    By the way, the battery trick worked a treat once more!
    I missed this thread first time 'round... Glad the battery trick worked for you

    I've not refoamed any drivers where the surround is rear mounted so cant offer any advice but I imagine it was a right PITA! Thinking about it I'd be tempted to front mount them like an AR surround... Would it make that much difference I wonder ?

  9. #19
    Join Date: Nov 2011

    Location: london

    Posts: 1,133
    I'm george.

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    Anyone want this refoaming project? I have found out from Elipson that they are Elipson 4004 and they also sent me the specs and other stuff shown...Unfortunately I cant read the French review.....Free to anyone who can collect from London....I reckon someone could end up with a nice set of speakers.....





    Please be aware I cant pack them and wait for couriers etc.

  10. #20
    Join Date: May 2008

    Location: A Strangely Isolated Place in Suffolk with Far Away Trains Passing By...

    Posts: 14,540
    I'm David.

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    Old tatty lenco chassis/bearing/platters (not quite up to precisioon audio use) with drives were used daily to make some TDL and Musical Technology drivers I remember...

    The 44 speakers I don't know, but the related? 48's were very well reviewed at the time. Thin plastic tube with a slot cut out was used as a centring 'tool' (Epos did this too I remember seeing) until the adhesives had gone off..
    I can't go on and I can't go back, I don't feel so matter of fact,
    I tried and tried to make good sense, What's the good to try it all again?

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