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A lot of recent audio DACs adopt the method of Delta-Sigma converter, so it will have many benefits actually. I finally found CS in web. DJ goods — cartridge, record cleaner If fatal problem occures, I’ll set Dayasheet. In order to suppress jitter noise, I adopted re-clock circuit. We shoud prepare unmoved ground. Avoiding incoming noises from unused digital input, I used relay dxtasheet would hook up with one-side of digital input to DAI. Technics turntable — modifying SLMK3 It got much more clear like urban escape.

It was strange that they had to be the same digital signals. It gets beautiful in night. I planned to set chip capacitors which had about 0.


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Digital inputs were 2 ways coaxial and optical. Further more, it was already converted into DIP package. The blank space was to add smoothing capacitors. In my case, power amplifier had its own LPF. In his lecture he tought following practical things. If we sample by over 2f, we will be able to restore avoiding distorted by LPF because fc gets to be much higher than 2f. I didn’t feel about speaker position, it was as is it were really source.

Bass reflex is wrong regarding reproducing the original sound. Then it got very clear and beautiful. I asked 2ch liver, brilliant mind in Japanese largest internet discussion board, for instruction and I finally got the solution.

They adopt current output, so we can use plurality of them in parallel. This is a photo which DAC has beeing sounded with optical input.

The bass from the duct of bass reflex is deadlly delayed, so it cannot get enough punch.

making NOS DAC — TDA1543 + CS8414 —

If BBS doen’t satisfy your needs, give me a mail. I want to try parallel use. If you can reproduce the original sound, you will be able to get enough bass edge. You shud use speaker unit as light as possible. First floor is the part of digital and second is the one of analog. TA is D-class amplifier and it uses PWM, so it would not good to include the noise which frequency is as high as switching one.


I often find DAC kits that adopt 2, 4 or 8 inparallel when I’m roaming the net. I’m sorry for my bad English. I was happy to have closed in true sounding. I remember as above. I reviewed the wiring of GND, removed re-clock circuit and adjasted potentiometer, but I couldn’t get clear sound. I felt a bit of luxury. This removing tool is low pass filter.

In order to suppress switchinig noise of regulator, setting a PI Low-Pass-Filter which is built by capacitors and toroidal core coil. Why it didn’t suit in my case? This was in my pocket luckily. It may be good to adopt para-using film capacitors in couppling. Heavy unit can’t immediately responce.