These topics are a constant source of questions for me. I'm thinking about trying some funky passive preamp solutions. Obviously the DACs output impedance as well as possible rolloff frequency should be taken into account. But I'm pretty sure the input impedance of the plain (no pot) amp...

Hi just finished building and learned how to desolder finally. Now the initial check. I get a quiescent current of 43mA the battery is at 9.4V and its a high performance model. This should be too much?! Thanks. edit: with an empty 7V it is around 25mA but thats not surprising

Hi, I've just received my first mobile player in ten years . My intention is to buy some very nice in ear phones or something like that when I'll be in the US in september. I'd spend 200-220$ max. I only have some knowledge about full sized phones but these portables with all their...

Hi everyone. I really love this forum and click it maybe 10 times per day. The mental illness that is DIY audio, has infected me wholly and I don't mind . But while reading schematics and more advanced threads I always noticed a large gap in knowledge. It seems that there are many EEs on...

This should be the right forum. I did a great deal of reading, but thought it would be best to start a discussion. Here is what I want now: PC -> DAC -> amp I'll build (easy diy amp - pimeta or something) -> HD595 Computer is my only source of audio, as I ripped all my cd's and it's so...