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Thread: LENCO - GL75 Project

  1. #751
    Join Date: May 2011

    Location: Glasgow

    Posts: 5,879
    I'm Brian.

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    Hah! Good Friday night stuff then . I'm sitting outside a pub waiting for the missus and friends to come out .
    Last edited by brian2957; 07-01-2017 at 09:41.
    Regards
    Brian


    Korus Computer Audio music server .
    Rega DAC .
    Amplifier : Rega Brio R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Van Damme hi-fi series 6mm .

  2. #752
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 6,408
    I'm AnDreW.

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    Tonights Update - The Reference Lenco Pt XXVII - Buggering about with tonearms.

    Tonight I decided I wanted to tie up a few loose end with the deck and more importantly get the tonearm properly set up in preperation for the new JICO neoSAS stylus for the M55E. I'd been running the '75 with a semi decoupled tonearm for the last six months to great effect but this flew against generally accepted wisdom with Lenco's. Usually tonearms is rigidily coupled to either the top plate or plinth if you can't fully decouple them. No for me I have to rigidily couple to the top plate (my least favourite option) but beggars can't be choosers. My plinth is too small to directly couple to the tonearm so it has to be the top plate. There is more method to my madness with this coupling because I've used EVA which should mitigate some vibration getting into the tonearm. My Alphason is made for Titanium so is pretty stiff but I wonder if my M55E would benefit from another layer of vibration protection with my Mpingo would spacer? In an ideal world you wouldn't have so many interfacing surfaces as this is bad for vibration supression/control but again beggards can't be choosers and I'll look into this when I get the new plinth. I'm pleased to annouce that I've finally got the 2mm vinyl clearence that I wanted from the base of cartridge to vinyl's playing surface. The tonearm is now rigidily coupled to the top plate and is correctly set up with regards tonearm geometry, tracking force, etc etc so I can now relax when listening to vinyl in the knowledge I've done all I can with the tonearm. I also took this oppotunity to make sure that everything was as tight as possible when rebuilding the '75, nuts and wing nuts got the full mole-grip treatment. A few pictures.

    Just before surgery. The '75 dismantle and my EVA template.

    DSCN2902.jpg

    The modified tope plate to accept the Alphason mounting column. I've spent hours filling in the top plate now I bloody drill into the things.

    DSCN2903.jpg

    A shoot from the underside of the top plinth with the mounting nuts to ensure maximum compression of the mounting column onto the top plate.

    DSCN2904.jpg

    My 2mm of surface clearence. I'm very proud of this. Yep I'm very sad.

    DSCN2905.jpg

    The beast fresh assembled with all the loose ends tied up and just waiting for the new stylus.

    DSCN2906.jpg

    Now I decided I wanted to re-assess my roadmap of development for the '75 tonight. I've always pondered if I should stuff foam bewteen the motor suspension springs and tonight was an ideal oppotunity. I decided not to bother because there is virtually no space and additionally how can I be sure the foam isn't going to impinge the function of the springs and make things worse. The springs do an excellent job of supressing vibration from the motor into
    the top plate if the springs are properly aligned so I took the oppotunity to re-check them and listening to the motor tonight confirms that things are good and the motor is silent. So, stuffing foam bewteen the springs has been crossed off my list of potential tweaks. The roadmap for January is still the tonearm so I'm hoping to experiment with extra weight and vibration supression with the M55E cartridge. I have no idea what Feb holds but until then.....
    SS CD Teac VRDS25X(Mega Modded) DAC Caiman SEG+Anker PSU DECK 1210 Mat Analouge Studio Crystal Mods MN Base/Bearing/Platter+Ebony arm Board Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/Jaeger(low-impedance) connector/3 StageRegs/Recapped PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MCOrtofon Cadenza Black CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    Valve PRECroft Epoch(Mega Modded) AMP Sondex S100 SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Reference XO DECK Garrard301 MatTeunto GunMetal Bearing401 PlinthMoldovan Arm SME 3012(Ikeda Ag wired) PSUPheonix PSU+Tachomter MCAg Meister SPU/DECCA Maroon CABLESArm Yannis 420.5 Litz+ Speaker3mm2Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostage4Box Paradise


  3. #753
    Join Date: May 2011

    Location: Glasgow

    Posts: 5,879
    I'm Brian.

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    Right down my street Andy . I'm still getting sibilance from my GL75 / M55e and I've spent far too much time trying to get rid of it . I'm seriously thinking about fitting another arm ( recommendations please ) or putting it in the loft I'm hoping to get some tips on setting the turntable up next week so I will wait until after that . Alternatively I will take it to Ali Tait and let him have a look at it as he has some decent gear to set it up .
    Have you had time for a listen to yours yet mate ?
    Last edited by brian2957; 07-01-2017 at 21:53.
    Regards
    Brian


    Korus Computer Audio music server .
    Rega DAC .
    Amplifier : Rega Brio R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Van Damme hi-fi series 6mm .

  4. #754
    Join Date: Oct 2008

    Location: Glasgowshire

    Posts: 6,074
    I'm availableforweddingsAndBarmitzvas.

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    Looking great Andy.
    Sent from my ZX81 using Sinclair Basic

  5. #755
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 6,408
    I'm AnDreW.

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    Quote Originally Posted by brian2957 View Post
    Right down my street Andy . I'm still getting sibilance from my GL75 / M55e and I've spent far too much time trying to get rid of it . I'm seriously thinking about fitting another arm ( recommendations please ) or putting it in the loft I'm hoping to get some tips on setting the turntable up next week so I will wait until after that . Alternatively I will take it to Ali Tait and let him have a look at it as he has some decent gear to set it up .
    Have you had time for a listen to yours yet mate ?
    I'm very sorry to hear about the sibilance issue Brian. It might not be the arm that's at fault. I would let Ali have a go at setting the turntable up and see if he can banish the problem once and for all. It'll certainly be cheaper than buying a new tonearm. Don't put the Lenco in the loft !!!! You've come a long way its a shame to get pissed off with the deck and banish it to the outer reigons of your attic. With regards tonearm suggestions, you could put anything on the deck so long as it had a 211mm mounting distance. I have the Alphason, but some Rega & Linn arms also work well, you'd need to do some research first. I've just heard a couple of sides of vinyl and already I think I'm hearing a difference. I'll have a bit more time tonight to listen and write up some findings.


    Quote Originally Posted by Gazjam View Post
    Looking great Andy.
    Thanks mate.
    SS CD Teac VRDS25X(Mega Modded) DAC Caiman SEG+Anker PSU DECK 1210 Mat Analouge Studio Crystal Mods MN Base/Bearing/Platter+Ebony arm Board Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/Jaeger(low-impedance) connector/3 StageRegs/Recapped PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MCOrtofon Cadenza Black CABLES Arm Yannis SPD-4 IC Yannis 222 Litz+Ag bullets Power WAR PRE ATC SCA2 SPEAKERS ATC 50ASL STANDS Atacama PHONO Sugden Masterclass PA4 SUT Ortofon ST80SE POWER PSAudio P10

    Valve PRECroft Epoch(Mega Modded) AMP Sondex S100 SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Reference XO DECK Garrard301 MatTeunto GunMetal Bearing401 PlinthMoldovan Arm SME 3012(Ikeda Ag wired) PSUPheonix PSU+Tachomter MCAg Meister SPU/DECCA Maroon CABLESArm Yannis 420.5 Litz+ Speaker3mm2Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostage4Box Paradise


  6. #756
    Join Date: Feb 2013

    Location: W Lothian

    Posts: 32,098
    I'm Grant.

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    Quote Originally Posted by brian2957 View Post
    Right down my street Andy . I'm still getting sibilance from my GL75 / M55e and I've spent far too much time trying to get rid of it . I'm seriously thinking about fitting another arm ( recommendations please ) or putting it in the loft I'm hoping to get some tips on setting the turntable up next week so I will wait until after that . Alternatively I will take it to Ali Tait and let him have a look at it as he has some decent gear to set it up .
    Have you had time for a listen to yours yet mate ?
    Dont lose the faith mate. It will be fixable without too much trouble im sure. Ali will fettle it for you. Hes a canny lad
    Regards,
    Grant ....
    Sometimes incompetence is useful. It helps you keep an open mind.
    .... ..... ...... ...... ................... ..... ..... ..... ..... .....
    IMUTO TAURUS X4 BATTERY SUPPLY. - RPI2B & AUDIOPHONICS DAC running MOODE 3.6- TONBRUX BATTERY SUPPLY & CHROMECAST2 AUDIO DONGLE no1 - JBE SERIES 3 SLATEDECK & EMOTIVA XPS-1 PHONO - DENON DV2900 & HEAVILY MODDED MF X10v3. BERESFORD SWITCHBOX. - TWIN PRO MONOBLOCK AMPLIFIERS. - CREEK OBH-11SE HEADPHONE AMP. -AUDIO TECHNICA ATH-MSR7 HEADPHONES - WIN10 JRIVER22, SPOTIFY PREMIUM- OPPO PM-3 PLANAR HEADPHONES, KINPS CABLES, SMSL M6 MINIDAC, CHROMECAST2 AUDIO DONGLE no2 POWERED BY ANKER BATTERY PSU - FULL RANGE TWIN & SINGLE TELEFUNKEN's - TANDBERG TCD310 - CARTS.. AT95 Shibata, SHURE M55E original, JVC MD1029. - RCA CABLES BY BRIAN SPKR CABLES BY MOI HAIR BY MARCO FEET BY ELECTRICBEACH - MAINS REGENERATED BY POWERINSPIRED AND FILTERED BY BELKIN PUREAV.

  7. #757
    Join Date: May 2011

    Location: Glasgow

    Posts: 5,879
    I'm Brian.

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    Quote Originally Posted by REXTON View Post
    I'm very sorry to hear about the sibilance issue Brian. It might not be the arm that's at fault. I would let Ali have a go at setting the turntable up and see if he can banish the problem once and for all. It'll certainly be cheaper than buying a new tonearm. Don't put the Lenco in the loft !!!! You've come a long way its a shame to get pissed off with the deck and banish it to the outer reigons of your attic. With regards tonearm suggestions, you could put anything on the deck so long as it had a 211mm mounting distance. I have the Alphason, but some Rega & Linn arms also work well, you'd need to do some research first. I've just heard a couple of sides of vinyl and already I think I'm hearing a difference. I'll have a bit more time tonight to listen and write up some findings.




    Thanks mate.
    Aye , I think a visit to Ali will be on the cards soon .
    Regards
    Brian


    Korus Computer Audio music server .
    Rega DAC .
    Amplifier : Rega Brio R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Van Damme hi-fi series 6mm .

  8. #758
    Join Date: May 2011

    Location: Glasgow

    Posts: 5,879
    I'm Brian.

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    Quote Originally Posted by struth View Post
    Dont lose the faith mate. It will be fixable without too much trouble im sure. Ali will fettle it for you. Hes a canny lad
    It's not in the loft yet mate
    Regards
    Brian


    Korus Computer Audio music server .
    Rega DAC .
    Amplifier : Rega Brio R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Van Damme hi-fi series 6mm .

  9. #759
    Join Date: Jan 2013

    Location: Birmingham

    Posts: 2,859
    I'm James.

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    When you hear my wreck it will hopefully give you hope that all is not lost mate!
    Lenco GL75 / Shure M55e / Jico SAS /VPI Scout 1.1 / JMW 9T Tonearm / 2M Black /Croft 25R+ / Croft 7 / Spendor SP2

  10. #760
    Join Date: May 2011

    Location: Glasgow

    Posts: 5,879
    I'm Brian.

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    I think a little tutorial may be in order James
    Regards
    Brian


    Korus Computer Audio music server .
    Rega DAC .
    Amplifier : Rega Brio R
    Speakers : Tannoy 637
    Interconnects : MS Audio / Klotz MC5000 .
    Speaker cables : Van Damme hi-fi series 6mm .

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