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    Topping DX5 Review (DAC & HP Amp)

    With 122 SINAD, fourth in the top 20 DAC SINAD on hundreds reviewed, there is voicing ? https://www.syclotron.com/why-are-people-obsessed-with-coupling-caps/ Replacing the capacitors will have the only effect to void the warranty
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    Topping DX5 Review (DAC & HP Amp)

    why don't they make it official?
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    Topping DX5 Review (DAC & HP Amp)

    You must have bat ears to hear differences between the three filters :)
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    Topping DX5 Review (DAC & HP Amp)

    I bought it on amazon, no problems at all, it works and update flawlessy
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    Topping DX5 Review (DAC & HP Amp)

    defective unit mine works fine
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    Topping DX5 Review (DAC & HP Amp)

    New firmware 1.38, wich adds also a "sound mode" option valve or transistor, and a balance option. Upgrade went flawless No documentation about these new features and the "dither" one in previous firmware. Hopefully an eq feature on next updates ? :) P.S. I can't hear any difference between...
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    Topping DX5 Review (DAC & HP Amp)

    Hello I bought DX5, I update from 1.35 to 1.37 firmware, now there's a new option in setup dither (L). Does somebody knows about this feature and/or has an upgraded manual ? tx P.S. very nice dac anyway.. yes, quite expensive, but very complete, top performances both as dac and phone amp, nice...
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    Class A/AB vs D -- Is it Audible in 2021?

    Texas Instruments implements Post Filter Feedback too, https://www.ti.com/lit/an/slaa788a/slaa788a.pdf?ts=1623089980798&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPA3251 but in my measurements the issue is improved but not eliminated. Cant say anything on ncore and purifi, I...
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    Class A/AB vs D -- Is it Audible in 2021?

    undoubtedly the high hend ones perform better, but the combination of LC filter on the output, feedback and non-linear load is a critical point for this technology. On resistive load they have a superlative response hovewer
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    Class A/AB vs D -- Is it Audible in 2021?

    Class D amps have that LC network on output and high feedback, this compromises their frequency linearity on complex speakers loads, wich is very common. At least those I tried, TPA 3255 and ta 2022.
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    3e Audio TPA3255 Rev. B PFFB

    tx!
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    3e Audio TPA3255 Rev. B PFFB

    same here I implemented PFFB, but went not much better. Improvement is on THD, but 0.01 is already quite good; with PFFB I have lost much gain. The answer is in picture by tpa3255 pffb datasheet: chip has a emphasys on frequencies above 4Khz. I removed PFFB, I just leaved a capacitor on...
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