Hi , I sent this message to bballas but couldn't get an answer yet.I want to share and ask to you also. I have 4 Pcs PCM1704 and JLsound I2Sover board and I have been started to make a referance DAC. I planed to pay too money for linear power supplies and transformers then I saw your great...

I got it now Benjamin.People who curious can see more detailed information here as a continuation of what you explained : http://education.lenardaudio.com/en/14_valve_amps_6.html I can make custom MRI coil and tune it to 123Mhz with network analyzer.Your method similar like that but it seems to...

Hi again , I want to say thank you Benjamin.You are very helpful and i learned many things from Benjamin also most of suggestions makes sense to me.When i saw the messages about coupling cap from you and Articnoise i wanted to write here.I want to understand which cap it is.I will decide to...

Hello, Which one is the coupling capacitor on this circuit ? Also are these PSUs enough to seperate DGND and AGND? What happend to use higher values inductors instead of 4.7uH, like 1H?

Why ? Don't you believe double slit experiment for quantum mechanics ? : )

I had responsibility of RF Lab for MRI research.I usually made aluminium and copper shields for low noise preamplifiers so i didn't know the it can be bad shield for DAC.Also i have worked on suppression of MRI vibration.It showed to us increasing quality of image quality.So i will definitely...

All these informations are great.Eventually I reach these conclusions : 1. I planed to make milled/engraving aluminium enclosure and take into account all other factors so thats right choise you verify me . 2. As i understand i can buy PCM1704U-J from Rochester Electronic ...

Yes i can compare chips which arrive to me with these images but i don't want to lost time if it turns out to be a fake.I hope i can find an advice from someone who buy genuine ones before.

Hi Erin, Last time i asked to seller, do you have any reference customer who member of diyaudio/head-fi .com. They didn't give answer yet.I asked again for invoice today.I don't have test equipment to understand genuine or fake.So i try to search for references before buying chips.

I see K grade chips are best performans of 1704s, isn't right ? Do you have any experience between J and K type of chips? I found another vendor at Altium Ciiva: http://component.iiic.cc/index.php?main_page=product_info&products_id=1852765 Anybody know " component.iiic.cc " ? Best Regards

Hi, I'm search for original PCM1704U-K chip.I found this seller but i'm not sure.Do you know this seller or could you advice any alternative which you trust ? https://www.ebay.com/itm/1PCS-PCM1704K-PCM1704-SOP-20-DAC-IC/291704612046?hash=item43eaf324ce:g:ASMAAOSwZ8ZW7D4q I will be very happy...

Hello,   I decided to buy NW-ZX2 and I've been looking for a while to get an in-ear headphone for that.My choise is Sennheiser IE 800 .But before get these i want to consult with someone who knows .Can be any mismatch problem between with these products or do you have any suggestion ? Sorry...

Hello ,    I want to remote control Khozmo stepped attenuator ( it can be Dact )  with maxon motors ( http://www.maxonmotor.com/maxon/view/content/products ). But i don't have experiance with this jobs.Which motor i must choose and could you suggest to me a circuit to control the motor ?  ...