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Thread: Jason's Techy T/T blog and the arrival of the Jelco 'big boy' c/w

  1. #51
    Join Date: Apr 2008

    Location: Cheltenham U.K

    Posts: 412
    I'm John.

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    Jason -

    What kind of wood are you using and how thick?

  2. #52
    Join Date: Mar 2009

    Location: The New Forest

    Posts: 1,915
    I'm Steve.

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    Wood - yeah will have to try that.
    I was using a 1mm thick light alloy spacer on my Rega RB250 arm for the AT 33 PTG - could not get VTA right otherwise.
    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.

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  3. #53
    Join Date: Jan 2009

    Location: Arizona

    Posts: 29

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    John,
    It's nothing exotic. Just some oak I think that I had a thin enough piece of lying around. It's about 3-4mm thick. It helps with the VTA and the sound is better.
    Are you using a wood spacer? What wood and thickness are you using?
    You have shown your woodworking talents here. I may ask you to craft me a fine tonewood spacer.

    In my experience, when you get the 103 "tuned in" correctly, it's very apparent. It sounds great. When it's off, it can sound harsh or too heavy or muddy in the bass. When the conditions are right, the bass is tight and the sound is very balanced.
    Jason
    System: Technics 1210 M5G, Denon DL103R on Audio Technica AT LH-18, Jelco SA750 tonearm, Denon HA500, Audio Technica PEQ20 phono equalizer, Rotel RSX1065 receiver, Monitor Audio S8 speakers.

  4. #54
    Join Date: Apr 2008

    Location: Cheltenham U.K

    Posts: 412
    I'm John.

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    Jason - If you're into trying different woods I could send you a few samples to craft away yourself - but tbh I haven't heard much difference between different woods or indeed between spacer/no spacer.

    What does seem to make a noticeable difference with the 103 for me is VTA. I wish the Jelco was as easy to fine-tune as the Technics in this respect.

  5. #55
    Join Date: Jan 2009

    Location: New South Wales

    Posts: 83
    I'm Tony.

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    WRT to the ease of VTA adjustment it has occurred to me to ask Pete Riggle of VTAF fame if his adaptor for Rega and some other arms might be adapted to the Jelco.
    Providing sufficient space can be made for it in the mount area, something I have yet to determine.
    Then again, the Jelco might not be happy with the "floating" mount that gives.

  6. #56
    Join Date: Apr 2008

    Location: Cheltenham U.K

    Posts: 412
    I'm John.

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    What I said in post no.47 about the shortcomings of the DL-103 regarding the treble has completely changed since I removed the plastic body (see the 'Nuding' thread). The treble has now really woken up and is significantly more lively and sparkly.

    I've now changed back from my Altec 15095 to the Newcomb TR-91 SUT -the latter gives a richer sound which is no longer deficient at the top.

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