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Thread: Comparing Class T Amps

  1. #11
    MartinT Guest

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    Any comments on TA-2020 versus 2021?

    Also, any observations on whether a big linear PSU sounds better than, say, a 5A switched mode PSU?

  2. #12
    Join Date: Oct 2008

    Location: Aughton, Ormskirk

    Posts: 2,855
    I'm Jerry.

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    Quote Originally Posted by icehockeyboy View Post
    I've just bought one for a silly sub £12, albeit minus a PSU.
    Wow, I thought I did well for £17! Don't bother with the tone controls, good job there is a defeat button.
    Jerry
    Hifi: IPL transmission line floorstanding speakers, Squeezebox Touch, Denafrips Ares 11 DAC, DCB1 Pre-amplifier, Croft Series 7 power amp.
    Custom Hifi cables HA10SE headphone amplifier and Hifiman HE-400 headphones.
    AV system: LG 55B7, Denon AVR -x2300w receiver, Quad 12L (front) 11c Centre and 11L rear . Velodyne DD15 subwoofer.

  3. #13
    Join Date: Oct 2008

    Location: Scotland

    Posts: 316
    I'm Paul.

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    Hi Martin,

    A big linear PSU like the SR5 or the SR7 does work very well with class T amps like the DIY Paradise Charlise and Virtue Audio amps that use these chips, as the supply line rejection is not usually that good on these designs. I see no reason why your amp should not see a benefit also. If you have time for a DIY project I can send you a high power PR3iEHD-12/14 linear regulator for R&D purposes.

    Regards,
    Paul
    Paul Hynes Design
    paulhynesdesign.com
    High Performance Power Supply upgrades
    http://theartofsound.net/forum/showthread.php?t=16655

  4. #14
    MartinT Guest

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    Thanks, Paul. I know of old that your PSUs are excellent for low power duties and indeed have PH supplies for my Technics SL-1210, Logitech Touch and Beresford Bushmaster, all of which significantly enhance SQ over the original PSU.

    I would be very interested in evaluating a PR3i 14V module and reporting back here on its performance. Shall we continue by PM?

  5. #15
    Join Date: Mar 2008

    Location: Galashiels

    Posts: 14,031
    I'm inthescottishmafia.

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    A good linear supply made all the difference to the Golds Martin, well worth doing IMHO.

  6. #16
    Join Date: Feb 2011

    Location: Troon

    Posts: 2,439
    I'm tony.

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    maplins linear psu made a noticeable improvement to my original bantum..... couldn't tell you which one though....

  7. #17
    MartinT Guest

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    Ah, that's good to hear chaps. I'll start planning a brute 14.5V 5A linear PSU build, then (the max recommended operating conditions for the TA-2021).

  8. #18
    Join Date: May 2008

    Location: Cricklewood

    Posts: 9,074
    I'm ILOB.

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    I use a good linear power supply really makes a difference but so does using a really good pre too on the Bantam I am now at the point where it be hard to go back to anything else
    Loves anything from Pain of Salvation to Jeff Buckley to Django to Sarasate to Surinder Sandhu to Shawn Lane to Nick Drake to Rush to Beth Hart to Kate Bush to Rodrigo Y Gabriela to The Hellecasters to Dark Sanctury to Ben Harper to Karicus to Dream Theater to Zero Hour to Al DiMeola to Larry Carlton to Derek Trucks to Govt Mule to?

    Humour: One of the few things worth taking seriously

  9. #19
    Join Date: Sep 2009

    Location: Essex, UK

    Posts: 3,439
    I'm Andy.

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    Quote Originally Posted by MartinT View Post
    Ah, that's good to hear chaps. I'll start planning a brute 14.5V 5A linear PSU build, then (the max recommended operating conditions for the TA-2021).



    Would be interested in your findings Martin, for what it is worth, l have three T-amps and the PSU is so important and they do make a difference- big time, my battery powered Virtue Audio Sensation M451 sounds quite awesome frankly...
    System; Michell Gyrodec SE/ Orbe Clamp/ Gert Pedersen armboard mod/ HR PSU/ SME V / J7 Tonearm cable/Ortofon Cadenza Black// Jez Arkless Turbo nutter B------ /Trichord Dino+

    Amplification and loudspeaker set up is at the moment being split into two groups, comprising the following;


    1. Same sources as above; SONY TAF-770ES/SONY CDP761E/Cable Talk 3.1 loudspeakercable/ Harbeth Compact7ES2/ Stands

    2. Virtue Audio Sensation M451battery PSU, ClarityCaps upgrade/ Sensation M901/Russian PIO caps with Teflon bypass caps upgrade/ JT Dynamic PSU with various tweaks/ Connex Audio 5N Litz loudspeaker cable, Impulse H6 Loudspeakers.




















    Me so horny- Impulse H6 Horny

  10. #20
    MartinT Guest

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    I'm running the Mini-T on a 12V SMPS right now. I have a 14V one arriving tomorrow. Soon I'll start building a 14.5V linear PSU. I'll be able to compare and report on them in due course.

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