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Thread: Magna Audio's custom-made counterweight balance and armboard service!

  1. #41
    Join Date: Jan 2008

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    Moral of the story: Never believe what you read on the internet!
    .

  2. #42
    Join Date: Mar 2009

    Location: The New Forest

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    I'm Steve.

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    Ok - I'll wait for part and confirmation of 13.84mm (14mm tolerance fit) from jandl100.

    Extra 2mm of material should add the grams you want too.

    /Steve
    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/

  3. #43
    Join Date: Jan 2008

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    Quote Originally Posted by Gdg View Post
    ...holy sheet,
    I made a mistake reading the caliper .

    Sorry to everybody.
    Hi Giovanni

    It really is not a problem.

    Apart from the size of the hole, there are a couple of things that really need sorting anyway ...

    1) the weight isn't quite high enough, so the extra weight of the insert that Steve can do should sort that

    and 2) it really needs an extra grub screw to hold it securely to the arm - one isn't enough to do that properly

    So there are excellent reasons to send the c/weight back to Steve anyway.

    Please don't concern yourself, it isn't a problem!
    .

  4. #44
    Join Date: Feb 2010

    Location: Salerno, ITALY

    Posts: 122
    I'm Giovanni.

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    Quote Originally Posted by jandl100 View Post
    Hi Giovanni

    It really is not a problem.

    Apart from the size of the hole, there are a couple of things that really need sorting anyway ...

    1) the weight isn't quite high enough, so the extra weight of the insert that Steve can do should sort that

    and 2) it really needs an extra grub screw to hold it securely to the arm - one isn't enough to do that properly

    So there are excellent reasons to send the c/weight back to Steve anyway.

    Please don't concern yourself, it isn't a problem!
    Thank you Jerry,
    this was a very embarrassing situation, for me.
    Giovanni.

  5. #45
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

    Default 3 more counterweights for a customer

    3 weights made for a PL-71 customer arm 16mm hole, weighs are 78g, 98g and 118g to take a range of carts from 9g to 30g and give the extra mass the SPU needs on a 9" arm.
    The latter will take the full SPU weight perfectly (ala GM/ Silver Meister etc).
    (I know this cos' I have the SPU Silver Meister on my PL-71 arm at the moment )


    Last edited by Magna Audio; 31-10-2017 at 08:16.
    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. #46
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 110,012
    I'm AudioAl'sArbiterForPISHANTO.

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    Hi Steve,

    Looking good, matey!

    Btw, I have another idea for a product option - how about doing custom-made arm plates? I suspect that there would be loads of people interested in those when fitting new tonearms to their turntables....

    I know that Paul Hynes, for example, is looking for an SME-type arm plate for an SL-1210, so if you could make one, I'd PM him

    Marco.
    Main System

    Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.

    Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.

    CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.

    Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.

    Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.

    Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.

    Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.

    Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.


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  7. #47
    Join Date: Dec 2008

    Location: Yorks

    Posts: 16,643
    I'm Nobody.

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    Quote Originally Posted by Marco View Post
    Hi Steve,

    Looking good, matey!

    Btw, I have another idea for a product option - how about doing custom-made arm plates? I suspect that there would be loads of people interested in those when fitting new tonearms to their turntables....
    Well i was gonna ask if he steve has the facilities to make me a New armboard pod for SME Mount..


  8. #48
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

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    Quote Originally Posted by Andre View Post
    Well i was gonna ask if he steve has the facilities to make me a New armboard pod for SME Mount..

    Depends on the material and shape - Mr Coco was over a while back cutting half inch thick gun metal for his (now mine) armboard.
    That was a 4 sided polygon with slot for SME base and 4 tapped M3 holes (I think they were M3) to take the slider.
    SME have pretty good jigs I think which helps.
    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. #49
    Join Date: Dec 2008

    Location: Yorks

    Posts: 16,643
    I'm Nobody.

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    Quote Originally Posted by speedy.steve View Post
    Depends on the material and shape - Mr Coco was over a while back cutting half inch thick gun metal for his (now mine) armboard.
    That was a 4 sided polygon with slot for SME base and 4 tapped M3 holes (I think they were M3) to take the slider.
    SME have pretty good jigs I think which helps.
    Well it's exactly the same as that armboard pictured above as that is my armboard.

    I don't want the sausage shape SME i was wanting it like Michell do for the Gyro, Easier for you, will allow me to fit a mission 774 original easier if i need to..the original is aluminium.
    Last edited by Rare Bird; 26-05-2010 at 23:24.

  10. #50
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,855
    I'm Steve.

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    What is the diameter? Clamping large flat things in my chuck might be problematic...
    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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