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Thread: Magna Audio News & Product Updates

  1. #221
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Here's a project I've been working on.
    It involves a Technics SL-1210, ebony, lots of upgrades and fitting a SME 309 arm.

    First I wanted to test the concept of applying ebony veneer so I used my scabby old SL-1200 deck as a guinea pig.
    I use that plinth/sub-plinth and base to make the armboards and get the spindle to pivot distance right.

    I trialled glue first until I found the right one to give an excellent bond and not bleed through.

    Pictured here with the ebony armboard and 309 arm.

    I'm having to do something different with the pitch control area. Thought of an ebony surround as a first test. I might be able to do a flush veneer though.

    The veneer is just using scraps so don't judge it too hard.

    The final deck project should be something special.











    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/

  2. #222
    montesquieu Guest

    Default

    Funky! I love it.

  3. #223
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Yes, it certainly changes the decks appearance from the usual black / silver or bright sprayed DJ paint jobs you see.

    Any type of wood veneer, exotic or otherwise would be possible
    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/

  4. #224
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Tannoy drivers have arrived for installation in the GRF-N cabinets.

    Beautifully original, straight out of the sixties. They've been in the same homemade cabinets the whole time.









    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/

  5. #225
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Here's an ebony armboard for the Technics SL-1210 fitting a Kuzma Stogie Reference tonearm.
    The arm requires a depth below the platter of 28mm minimum!
    It's a tight fit but I did it.

    This one features the mounting system from underneath and is pictured during test mounting and finished on my now ebony veneered test plinth.












    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. #226
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default Default A bit of customer feedback for the Kuzma Stogi Reference ebony armboard

    This is one I made recently to fit a Kuzma Stogi Reference on a Technics SL-1210. It required careful sizing up and fitting
    as tolerances were tight for this arm with the low platter to plinth height.

    "Hi Steve,

    Tonearm fits perfectly; I've attached a few pictures.

    The sound is leaps and bounds ahead of my previous set up, even with a
    fairly modded 1210, I just wasn't prepared for the increase in
    soundstage and the shear clarity of vocals and every type of
    instrument!

    The armboard is a fantastic job, beautiful, rock solid and was easy to
    fit with the supplied bolts; I can't thank you enough for such
    excellent service.

    Kind regards,

    Alex"

    Pics on Alex's deck



    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/

  7. #227
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default Customer feedback for the Birch plywood Tannoy GRF Narrow cabs I recently made

    Peter commissioned a pair of my Tannoy GRF narrow/tall style cabinets in premium birch plywood.
    I also modded the crossovers for bi-amping and changed all the caps and checks the resistors out.


    Dear Steve,
    Please feel free to include the text below in your customer feedback section.

    In spring 2018 I asked Steve to make me a pair of GRF Narrows. I had acquired from my father-in-law a pair of 15" Monitor Golds which he had had from new in early 1973. He had built unported cabinets for them which were close in dimensions and design to Tannoy Lancasters. I did not believe that the speakers were delivering all that they could, and were being held back by their enclosures. Treble was OK, but bass was curtailed and congested. Steve fitted the speakers into the new cabinets and I collected the finished job and installed them in my home. I have been listening for a week or so now, and all the expected benefits have become apparent. The stereo image is taller, wider and deeper, and much more stable than before. The whole sound is more lively, more credible. The bass is greatly extended, and much more taut and agile than before. Treble is cleaner and crisper. In short, the music simply dances.

    Hope all is well with you,

    Best regards,

    Peter

    A pic of Peter's current set up.

    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/

  8. #228
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Here's a solid ebony armboard for a Technics SP-10 / plinth.

    The original in plastic coated MDF weighed 325g.

    The ebony replacement weighs 803g









    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/

  9. #229
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Next step in the Technics SL-1210 mkII ebony revamp makeover project..
    Made up ebony sleeve and top for the on off switch and ebony switch plate got the start/stop and 33/45 rpm buttons.
    No plastic, chrome or silver finish in sight soon

    Next up an ebony pitch slider knob and rubbing the veneer down to smooth finish before sanding sealer applications, more rubbing and finally spray lacquering.

    Then it's onto to upgrade fitting and electrical mods



    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/

  10. #230
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default

    Here's an ebony arm mounting block.
    Close tolerance grip fit for the armbase. 4 X threaded inserts for bolting the base down to the plinth..
    Should sound great.











    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/

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