March 1, 2025

300B Amplifier Hum Problem Solved

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My previous post about the 300B tube amplifier build was a breakthrough for myself. That was my first 300B amplifier build that by its natur...
February 14, 2025

Portable TDA1543 DAC Preamp & Headphone Amplifier

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I've built DAC with pre-amp and headphone amplifier combo several times which surprisingly sound good. Moreover, this might become more ...
December 27, 2024

300B Tube Amplifier Build

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The 300B tube can be the holy grail of every tube amplifier. Everyone praises for its sweet sound. Personally, I never compare directly betw...
December 19, 2024

Fresh Catch, The Parasound DAC 1000

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Sometimes we bought the vintage audio equipment's not because only for the built quality, or the sound signature, or the price. I bought...
December 10, 2024

IBASSO DX-90 Disassembly & The Capacitor Replacement

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It has been a while I am not posting anything in this blog. This is because of my main job schedule is very tight, so I cannot even manage t...
September 23, 2024

Low Cost, Great Sound AD1865NK DAC Build

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It started when I tidied up my storage bin on last weekends, I remember that I had an unused AD1865 DAC complete board from my previous DAC ...
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September 2, 2024

Miflex MKP-14 Capacitor for Speaker Cross-over Upgrade

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Continue from my previous speaker cross-over modification from -12dB to -6dB slope, I satisfy with the result and I would replace the capaci...
August 29, 2024

Speaker Crossover Comparison -12dB Vs. -6dB Slope

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We are fully aware that the speaker is the end of every audio chains. In my experience, once I get satisfy with a pair of speaker, then it w...