Posts filed under: DIY Audio

It’s been a long time since I bought this QLS QA-550 – a year or two. Unfortunately, I haven’t had enough time to try this. During this lazy Sunday, and as I also have ripped several tracks to WAV format,...
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Today, 1st of September 2012, located on ACA Matraman, Indonesia High End Audio Club (IHEAC) hold a Solid State Amplifier Blind Test session. So here is the audience and (some) also the contenders. Actually solid state amplifier is kind of...
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This is actually an old card, but I think I can have a use if I can get an adequate mainboard with PCI slot. This card was quite famous at that time, with excellent 24/192 support and tons of I/O...
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Sometime it’s nice to build something simple at low cost, but reasonably sounds good. Today, we’re gonna make a simple interconnect cable. The purpose is actually I need to build two pairs of interconnect cables to be used on my...
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I got a chance to short visit the Kuala Lumpur International Audio Video (KLIAV) 2012 show. It was held in JW Marriott Hotel at Bukit Bintang. Well, it’s a famous location with several shopping mall like Lot 10, Plaza Low Yat, Berjaya Times Square,...
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Please read here, here, here, here, and here before you continue reading this one. I believe that could give you an overview of this project. Finally, we come to the day to have a listening test of this project. The...
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Finally, the Lundahl potting project has been completed. Now it’s the time to give initial measurement of the project. First is very simple testing, the inductance test. Next week, we shall have a listening test with this Choke. The inductance...
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After around 12 hours and everything is cooled down, I manage to see the final result of my potting project. It seems like the pain has been well paid. The result is smooth as a delicious tofu. But after a...
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If you haven’t read the first two post, then I would suggest to visit here and here first. This is the 3rd experiment, and should be final one. I have done several experiments previously (although not published in detail here)....
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Perhaps you still remember the first article about designing the PCB? Now finally, the PCB has been done. The result is quite awesome, as the specs also set at premium grade. This 2.5 mm thick red PCB has 2 oz...
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Please go back here if you haven’t read the first article. On this second part, I’m about to create the potting ingredients to pot my Lundahl choke. I have several experimental ingredients, so some of them might not be exposed...
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It’s been a while since this idea came to my head few months back. Now it’s time to make it happens. As you might also know that Lundahl is one of the good transformer maker. They use their own C-Core...
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