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Thread: High or low-mass record weights/clamps: which is best?

  1. #1
    Join Date: Mar 2010

    Location: Sheffield

    Posts: 2,899
    I'm Simon.

    Question High or low-mass record weights/clamps: which is best?

    {Discussion moved from The Gallery, here: http://theartofsound.net/forum/showt...629#post363629 }


    I've got a much earlier version of this currently sat round mine and it ticks all the boxes for me. I've always been loathe to use the Kuzma weight/clamp. it just doesn't make any sense to me, a brand goes to all that trouble to manufacture the quietest bearing they can for a deck, then they go and spoil it by loading the bearing with several hundred grams of weight for a clamp- when its clamping force, not weight that is really needed.

    Don't me started on after-market record weights, they are just the height of stupidity, especially as you can press the record down without adding a load of mass by other means.
    Last edited by sq225917; 19-09-2012 at 07:12.
    Kuzma Stabi/S 12", (LP12-bastard) DC motor and optical tacho psu, Benz LP, Paradise (phonostage). Imac m1, gustard A18dac, Bruno Putzeys balanced pre, neurochrome 486 dual mono amps, Yamaha NS1000m with raal ribbons

  2. #2
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 111,023
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Hi Simon,

    Don't me started on after-market record weights, they are just the height of stupidity, especially as you can press the record down without adding a load of mass by other means.
    In essence, I agree.

    However, bear in mind that added mass is less of an issue for some T/Ts, than others, particularly 'battleship build' direct-drives (and no, I'm not talking here about the SL-1200), which have suitably massive, uber-engineered bearings and shed-loads of torque, thus rendering them completely unperturbed by the presence of ANY 'bad-ass' record weight!

    Marco.
    Main System

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

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and 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. 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.

  3. #3
    Join Date: Nov 2008

    Location: Banbury, Oxfordshire/Panteg is where my late father was born

    Posts: 4,381
    I'm Chris.

    Default

    High mass record weight for suspended belt drive TT's NO

    High mass record weight for solid Direct Drive TT's YES

    It's not so much the weight/stress on the bearing with the former , but the extra weight on the suspension that's a real problem surely ?
    Chris

    We've gone on holiday by mistake !

  4. #4
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 111,023
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by chris@panteg View Post
    High mass record weight for suspended belt drive TT's NO

    High mass record weight for solid Direct Drive TT's YES
    Quite; it's a simple formula (although, also add idlers, high-mass string and tape-drive T/Ts, into the 'YES' category), but unfortunately some daftees insist on there being a universal record clamp/weight solution for all types of T/Ts!

    It simply t'aint so...

    Marco.
    Main System

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

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and 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. 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.

  5. #5
    Join Date: Apr 2008

    Location: Cheshire, UK

    Posts: 2,832
    I'm Clive.

    Default

    Quote Originally Posted by chris@panteg View Post
    High mass record weight for suspended belt drive TT's NO

    High mass record weight for solid Direct Drive TT's YES

    It's not so much the weight/stress on the bearing with the former , but the extra weight on the suspension that's a real problem surely ?
    Likewise idlers with massive bearings.

    Also what about the mat? If the mat has a series of points supporting the record I can see that a little pressure to ensure correct seating is a good thing but too much pressure would likely nullify the benefits of the pointy support. As Marco says, no universal solution.
    TT 1 Trans-Fi Salvation with magnetic bearing + Trans-Fi Terminator T3Pro + London Reference
    TT 2 Garrard 301 with NWA main bearing + Audiomods Series Six 10.5" + Ortofon 2M Mono SE
    Digital Lindemann Bridge + Gustard R26 with LB external clock
    Pre and Power Amp EWA M40P + M40A
    Bass Amp & DSP Behringer iNuke NU3000DSP x 2
    Speakers 1 Bastanis Sagarmatha Duo with twin baffleless 15" bass drivers per side
    Speakers 2 MarkaudioSota Viotti Tower

  6. #6
    Join Date: Nov 2008

    Location: Banbury, Oxfordshire/Panteg is where my late father was born

    Posts: 4,381
    I'm Chris.

    Default

    Quote Originally Posted by Marco View Post
    Quite; it's a simple formula (although, also add idlers, high-mass string and tape-drive T/Ts, into the 'YES' category), but unfortunately some daftees insist on there being a universal record clamp/weight solution for all types of T/Ts!

    It simply t'aint so...

    Marco.
    Agree .
    Chris

    We've gone on holiday by mistake !

  7. #7
    Join Date: Nov 2008

    Location: Banbury, Oxfordshire/Panteg is where my late father was born

    Posts: 4,381
    I'm Chris.

    Default

    Quote Originally Posted by Clive View Post
    Likewise idlers with massive bearings.

    Also what about the mat? If the mat has a series of points supporting the record I can see that a little pressure to ensure correct seating is a good thing but too much pressure would likely nullify the benefits of the pointy support. As Marco says, no universal solution.
    Sorry , yes I should add idlers .
    Chris

    We've gone on holiday by mistake !

  8. #8
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 111,023
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Quote Originally Posted by Clive View Post
    Likewise idlers with massive bearings.

    Also what about the mat? If the mat has a series of points supporting the record I can see that a little pressure to ensure correct seating is a good thing but too much pressure would likely nullify the benefits of the pointy support. As Marco says, no universal solution.
    Yup, too many variables to consider.

    However, let's get back on topic and await piccies of Mark's fab new clamp

    Marco.
    Main System

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

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and 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. 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.

  9. #9
    Join Date: Apr 2008

    Location: Cheshire, UK

    Posts: 2,832
    I'm Clive.

    Default

    Indeed, I'm sure it'll be optimised for his nipply mat
    TT 1 Trans-Fi Salvation with magnetic bearing + Trans-Fi Terminator T3Pro + London Reference
    TT 2 Garrard 301 with NWA main bearing + Audiomods Series Six 10.5" + Ortofon 2M Mono SE
    Digital Lindemann Bridge + Gustard R26 with LB external clock
    Pre and Power Amp EWA M40P + M40A
    Bass Amp & DSP Behringer iNuke NU3000DSP x 2
    Speakers 1 Bastanis Sagarmatha Duo with twin baffleless 15" bass drivers per side
    Speakers 2 MarkaudioSota Viotti Tower

  10. #10
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 111,023
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Oh yes, I don't doubt that

    Marco.
    Main System

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

    Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp and 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. 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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