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  1. Old Comment
    abraxalito's Avatar

    Taobao has a TDA1387 DAC (apparently)

    Well spotted! So then it'll need a minor bit of modding to function as a DAC. OK
    permalink
    Posted Today at 06:00 AM by abraxalito abraxalito is offline
  2. Old Comment
    miklos's Avatar

    Taobao has a TDA1387 DAC (apparently)

    The label over the rca sockets says in.
    permalink
    Posted Today at 04:27 AM by miklos miklos is offline
  3. Old Comment
    rjm's Avatar

    Voltage Regulators for Line Level Audio. Part VII : The k-multiplier

    Good point, it seems R1=220 ohms is a better value.
    permalink
    Posted 3rd October 2014 at 12:17 PM by rjm rjm is offline
  4. Old Comment
    abraxalito's Avatar

    New active speaker on order from Taobao

    Well that's bad news for learning, big mistakes spawn major lessons
    permalink
    Posted 30th September 2014 at 12:43 AM by abraxalito abraxalito is offline
  5. Old Comment
    fas42's Avatar

    New active speaker on order from Taobao

    Seems as if you can't put a foot wrong at the moment, Richard ...
    permalink
    Posted 29th September 2014 at 11:27 PM by fas42 fas42 is offline
  6. Old Comment
    abraxalito's Avatar

    Revisiting active speakers - HiVi D1010

    Yep, time and time again it all comes down to power supplies. I created a slogan 'No matter how important you think power supplies are, they eventually turn out to be even more important than that'.

    For example, just this week I've been surprised how good active opamp-based filters can sound, given top-notch power supplies. I'd never have imagined humble old TL084 (price 0.6rmb on Taobao) sounding that good so long as its PSU is looked after carefully. So much so that I'm considering active filters again.

    Having a decent sounding JFET buffer (and costing 0.15rmb) means cap sizes can all be reduced considerably, C0G ceramics get considerably cheaper at lower values.
    permalink
    Posted 24th September 2014 at 02:43 AM by abraxalito abraxalito is offline
    Updated 24th September 2014 at 02:47 AM by abraxalito
  7. Old Comment
    fas42's Avatar

    Revisiting active speakers - HiVi D1010

    Nice continuing saga - note that the major benefits come through from giving the power supply more grunt, in every area - highly likely the hash and tubbiness will be resolved at a certain point, just by focusing on that ...
    permalink
    Posted 24th September 2014 at 01:27 AM by fas42 fas42 is offline
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