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Thread: One4Audio

  1. #1
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default One4Audio

    For many years I have designed power supplies and audio equipment, but my love of music has always encouraged me to ease the whole ambients and close to the original as possible from my designs in audio.
    But cost of production has sometimes made my ideas far to expensive for the majority of music lovers.
    So to these ends I designed cost effective products like the Claymore by Inca Tech and Magnum by A.C.Magnum.
    Now I have albeit late in life decided without constraints and conflict to produce in small runs kits for all to make as a hobby.

    Many year ago I did for fun a SECA design, the component then were no way as good as you can buy now for reasonable costs. So with this in mind and the fact many of us have not got the funds to spend thousands of pounds on equipment, I have designed a KISS version that most able persons could build.

    All those that have done this already have had great success, I am very proud of you all well done.

    Photo of the kits are available all over the web, and I will later collate them all here, with notes.

    PS Thanks Marco for this page.

  2. #2
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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

    Default

    No worries, mate. I'm sure you'll use it judiciously

    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.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  3. #3
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    Gentle start PCB



    Bom for PCB



    Circuits for PCB




    PCB Layout

    Last edited by Colin Wonfor; 01-12-2015 at 14:11.

  4. #4
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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

    Default

    Eh?

    You get out of it, what you put into it, mate. Use it as your 'shop window'...

    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.


    Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!

    Also **SAY NO** to unjust 'vaccine passports' or certificates, which are totally incompatible with a FREE society!!!


  5. #5
    Join Date: Apr 2008

    Location: Warrington

    Posts: 3,451
    I'm Neil.

    Default

    A price list and photos of what is available, as well as links to BOMs etc., would be very helpful.
    Mana Acoustics Racks / Bright Star IsoNodes Decoupling >> Allo DigiOne Player >> Pedja Rogic's Audial Model S DAC + Pioneer PL-71 turntable / Vista Audio phono-1 mk II / Denon PCL-5 headshell / Reson Reca >> LFD DLS >> LFD PA2M (SE) >> Royd RR3s.

  6. #6
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    Not to well at this time will do ASAP.

    http://www.hifianswers.com/2015/11/a...raight-part-2/

    Spelling and grammar could be better.

  7. #7
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    Phono MM/MC PCB with SECA headphones, similar to TQ Phono but with leaded components NOT SMD ideal DIY, POA

    PCB Layout



    PCB Circuits








  8. #8
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    Mono SECA Kit on heat sink. In a Modshop Chassis.



    The completed amp.



    And inside.

    Last edited by Colin Wonfor; 01-12-2015 at 14:40.

  9. #9
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    FET replacement with leg twist PCB for Inca Tech Claymore.


















  10. #10
    Join Date: Jul 2011

    Location: London

    Posts: 741
    I'm Colin.

    Default

    SECA PCB

    Please Note C4 near the Green LED is now omitted DO NOT FIT it sound much better without it.




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