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Thread: Yannis Tome 420.5 Litz - Tonearm cable

  1. #11
    Join Date: Nov 2010

    Location: Yorkshire

    Posts: 9,302
    I'm Andrew.

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    HEY MARCO YOU ASKED FOR THIS, YANNIS HAS REPLIED!!!!!

    The 423.5phono-litz is the basis for many of our more advanced designs. In my opinion it is a great all rounder which is very hard to beat at a price range near it. On the other hand, by design, the cable has some limitations as a result of being able to produce it within a certain budget; but also trade offs that allow us to create a more universal and user friendly cable with a relatively high degree of flexibility and small profile. More complex designs that meet more design aims are naturally larger in size, not as flexible and significantly more expensive.

    So, the 420Phono-litz uses much larger conductors than the 423.5phono-litz. The combined gauge of the strands in a single conductor in the case of the 423.5 is approx 24AWG as opposed to approx 20AWG in the case of the 420Phono-Litz. These conductors are insulated with a combination of a thick film of solid Teflon that ensures fixed distance and airtight coverage of the metal surface with a very low dielectric impact. This is combined with a low density layer of Teflon halving the dielectric impact among the conductors, and fixed air gaps with the embodiment of hollow PTFE tubes. With the correct alignment the design drives the cable resistance, capacitance and inductance simultaneously at low levels. The 420phono-litz gives approx.
    Capacitance 60pF/m, Inductance 0.4uH/m and DC resistance of less than 0.03Ohm/m. Whereas, cable designs can easily achieve lower values in regards to one of the above parameters, balancing successfully the impact on the other parameters is particularly challenging.

    Further to the design, one of the main aims on all of our cables is to use not only a suitable overall conductor size, but also the most efficient strand sizes within the conductor for a given application. Since the Gaia conductors are technically Litz type, the size of the individual strand does matter (unlike bare stranded cables). The optimal strand size of a Litz conductor is determined by the voltage, operating frequencies and length. Unlike, high frequency Litz wires where very fine strands are employed (and mistakenly such wires have also been adopted by the audio industry), the strand sizes for the audible frequencies should ideally be much larger. The most efficient gauges that cover the specific applications are between 30AWG and 24AWG. These are quite large strand sizes to be accommodated in a cable design without causing practical problems in regards to the overall size and the effect on the electrical characteristics of the cable. In the case of the 423.5Phono-Litz we have concluded to use 28AWG strands that offer the optimal path for a very broad range between 60Hz and 1KHz. The 420Phono-litz expands this optimal pattern beyond the audible limits (at both lower and higher frequencies) to comfortably accommodate the plurality of frequency components in analogue audio signals, by incorporating in the same conductor individually insulated strands of 3 different gauges.

    Furthermore, the 420phono-litz is a heavily shielded designs, using 3 overlapping layer, each having different characteristics. The main shield is a silver plated OFC copper braid, much heavier gauge than the one used on the 423.5phono-litz. Underneath this braid there is nickel and copper fiber mesh wrapped with a 50% overlap. Above the silver plated braid there is a thick ferrous steel braid which blocks a range of low frequencies that typically penetrate copper, aluminium and most of the materials typically used for shielding audio cables.

    The above can be further expanded and explained since each of the materials, the insulating techniques, the proximity and alignment, all serve their own purpose and have been selected based on their individual and combined performance.
    SS
    CD Teac VRDS25X(Audiotuned) DECK 1210 Mat Crystal Audio Mods MN Base/Bearing/Platter+Ebony armboard Feet Isonoe PSU Paul Hynes SR7EHD-27XL/DCSXL Ag DC lead/3 Stage Regs/Recap PCB+No Pitch/Strobe/Light ARM SME V(Kondo Ag Rewire&Tags) MC Cadenza Black FGS 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

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    Croft Epoch(Modded) AMP Sondex S100 (Modded) SPEAKERS Tannoy 15"MG+RFC Warwick cabs+ Ref XO + Batpure supertweeters DECK Garrard 301 Mat Teunto Bearings 401(Bastin) Plinth Bamboo Arms 3009/3012 PSU Eagle+Tachometer MC Ag Meister II/FGS + Ortofon SPU MONO CABLES Arm Yannis 420.5 Litz+ SpeakerPC Tripple C+WBT-0681 Ag IC Oyaide FTVS-510 AgWBT 0110Ag Phonostages Paradise(4 Box Mega-Modded) / Croft Musicmaker



  2. #12
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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

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    Quote Originally Posted by REXTON View Post
    Good points but from a purely selfish point of view my 301 will only be doing bake offs in my room
    Lol... Dat's fine, but there's nothing worse than having a short length that doesn't satisfy

    and .75m is optimal for my requirements and 50% cheaper than a 1.5m version.
    Really? Normally it doesn't work like that. There's usually no more than 20% difference in price between different sized cables, unless going from something like 0.5m to 6m!

    Marco.

    P.S Just seen Yannis' reply. I'll have a read now
    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.

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