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Thread: New pi stuff

  1. #31
    Join Date: Oct 2013

    Location: Wrexham

    Posts: 912
    I'm Darren.

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    Quote Originally Posted by Bigman80 View Post
    It was recommended to me buy Antonio here. I asked Firebottle his advice and he said it wouldn't give 3A, nearer 2.7/2.5a. That's fine for the pi.
    Indeed.

    Thanks for sharing, I'd be interested in your thoughts compared to the standard SMPS, when it arrives. I've heard the Spotfire so trust your ears

    Sorry for the thread drift.
    Darren.
    Analogue.
    Turn Table. Garrard 401, Reso Mat, 2 Tier Slate Plinth, DIY Hadcock GH242, Nick G modded Lentek, Denon DL-103.
    Pre Amp. Croft Super Micro2. Power Amps Quad 405 Mono Blocks.
    Front Speakers. Celestion Ditton 44/66 Mod.
    Digital.
    , CDP/BDP/DAC/Pre Amp. Oppo 105D.
    FBA Raspberry Pi3B+, Wireworld Ultraviolet USB.
    Power Amps. 2 x Nakamichi AVP1.
    Front Speakers. Celestion Ditton 44/66 Mod. Surround Speakers. Celestion UL8. Rear Speakers. Celestion Ditton 11. Subwoofer DIY Eminence Lab12, MiniDSP, IRS500SMPS.
    Gallery. http://theartofsound.net/forum/showt...-of-the-70%92s

  2. #32
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 7,442
    I'm Oliver.

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    Quote Originally Posted by DarrenHW View Post
    Indeed.

    Thanks for sharing, I'd be interested in your thoughts compared to the standard SMPS, when it arrives. I've heard the Spotfire so trust your ears

    Sorry for the thread drift.
    No apologies necessary! It's all related. I'll update the pi in the sky thread I made.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken Valves)
    Digital: Raspberry Pi 3+ With Allo Boss.
    Amplification: Nelson Pass DCB1 with Khozmo 48 Step Series Attenuator & Krell KSA100 MK2 Amplifier
    Cables: Bigbottle Speaker Cable & SPOTFIRE IC Cables & NEW SPOTFIRE Tonearm cable
    Speakers: Pioneer CS-77A

  3. #33
    Join Date: Jan 2015

    Location: Leeds

    Posts: 159
    I'm Dave.

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    Dilemna time

    I've done some tests on A123 cells and they seem close to ideal as a power source. I cannot test the noise performance but output impedance and load transient response is "more than adequate".

    I lashed 6 cells together to provide +/-10V for my active crossover and had a listen. The resulting sound is boring and bland. Where did all the dynamics go???
    Now, I admit that I didn't remove all the decoupling as some are prescribing. But I've been through decoupling experiments with this kit before and as far as I'm concerned the standard engineering method (local small electrolytics with reasonable ESR and a 0.1uF ceramic as close to the load as possible) works and sounds best.

    Once again I find I'm alone in my conclusions.
    Actually I'm OK with that. My system only has to please me.

    I've put my name down for the GB for al Ian's battery powered stuff and I don't know whether or not to bottle it now

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