Hello from Italy

[fralippo]

I've finally been able to buy a Raspberry pi4 again to run Moode. A great piece of software, powerful, quick and perfectly stable. Furthermore it allows oversampling which is essential, or so, for red book files when plaied with the DACs I like... as my latest DIY one. Hyper briefly: USB to i2s board directly connected to a couple of multibit PCM1704k DAC ICs and a good output section. It plaies really fine ;-)

[Nutul]

I've finally been able to buy a Raspberry pi4 again to run Moode. A great piece of software, powerful, quick and perfectly stable. Furthermore it allows oversampling which is essential, or so, for red book files when plaied with the DACs I like... as my latest DIY one. Hyper briefly: USB to i2s board directly connected to a couple of multibit PCM1704k DAC ICs and a good output section. It plaies really fine ;-)

Hi,

welcome on board!
It would be nice for us to see some pictures of your setup, and maybe some information/pics about your DIY DAC

[fdealexa]

I've finally been able to buy a Raspberry pi4 again to run Moode. A great piece of software, powerful, quick and perfectly stable. Furthermore it allows oversampling which is essential, or so, for red book files when plaied with the DACs I like... as my latest DIY one. Hyper briefly: USB to i2s board directly connected to a couple of multibit PCM1704k DAC ICs and a good output section. It plaies really fine ;-)

Hi fralippo,
Welcome on board (benvenuto).
I am interested, like Al, to see your DAC: any detail will be appreciated.
Have you seen the PROTODAC? Another interesting DIY DAC: You can fine some information HERE and on the moode site.
Best regards (salutoni),
Francesco

[fralippo]

Hi everybody (ciao Francesco),

this dac adopts a, galvanically isolated, JLsounds USB to I2S board. Two voltage regulators are used to supply it. This Xmos based device can conveniently be configured for a direct connection to different DAC ICs, without the need for a "glue" logic in between. A nice feature indeed.

The PCM1704 board is from the italian THE WELL audio company:
https://www.thewellaudio.com/pcm1704/

It has been carefully designed for the best possible layout and uses optimized components around the DACs (read: only use the shown parts).

A SERIOUS warning about PCM1704 ICs: they are nowadays impossible, or so, to be found from reputable sources. AVOID, carefully, those on Ebay from China. They're mainly scams. If you're lucky they're standard PCM1704 with a fake J or K letter added (these are the selected versions)... 

So I suggest to use different MULTIBIT ics, such as the old, still fantastic, TDA1541. Much more common and easier to get. You can find some great boards for it on THE WELL audio website. Furthermore they build some phenomenal discrete DSD and PCM DAC boards with a dedicated FIFO system and suitable top quality oscillators. Hopefully in a couple of months I'd have completed my PCM version.

https://www.thewellaudio.com/twsdac-lt/
https://www.thewellaudio.com/twsdac-dsd/
https://www.thewellaudio.com/twsafb-lt/

Back on my device, the output section then is based on a Broskie's circuitation. I've used it in a few DACs and it's easily the best I/V converter I've ever listened to.
https://www.thewellaudio.com/twcivc-ss/

All of the six voltage regulators are from the polish Muzgaudio company:
https://muzgaudio.com/en/produkt/voltage...ator-v3-2/

I hope these informations could be useful to someone! And, yes, avoid monobit DACs ;-)

[fralippo]

picture