Discussion in 'Digital: DACs, USB converters, decrapifiers' started by purr1n, Jan 29, 2020.
you got it right. Just the pi supply or pi supply plus second 5v supply.
I guess something like Allo Shanti would be perfect as it has dual 5v out.
Would this work with one output 3a and one 1a?
Yes, connect 3A to Pi4 board and 1A to power Pi2AES.
If the Pi is being powered by a LPSU, is there an SQ improvement to be gained by powering Pi2AES 2.0 separately?
The PI has a built in 5V - 3.3V switching supply. Some of this noise can bleed into the PI2AES 2.0. The vast, vast majority is knocked down by the LT3245 LDO's on the PI2AES 2.0. However, I would suggest if you have a 5V linear, use it to power PI2AES 2.0 and use a standard supply for the PI itself.
We have been doing some early testing and will publish the results later this week. Just sorting out the proper way to show it. But rest assured they are very good!
Any estimate when units will start to ship?
Very soon. The units are being shipped to me this week and we have just finished cutting cases and making hardware kits for the case assembly.
PI2AES 2.0 Update
The first batch of units were received this morning and are undergoing initial inspection and test. Current orders will ship starting Friday and may take a couple of days to get through them all. New orders placed after Friday will ship within one week of ordering.
Got my Pi2AES 2.0 yesterday! It only took me about 20 minutes to set up, and I’ve tried it with Yggdrasil A1 via AES and Bifrost 2/64 via coax. There’s a definite upgrade in audio quality and I keep wanting to listen to one more song. My wife generally doesn’t pay attention to what I do with our hardware but she sat down for a few songs and admitted that it sounded good.
For now it’s portable enough for me to unplug and bring to the bedroom but I’m probably going to get a second one eventually.
What were you using before? I've searched and not been able to find anything.
In my living room, my source was either 1) Plex on an Nvidia Shield TV Pro via Toslink Digital or 2) PC/MacBook Pro via Unison USB.
In the bedroom, it was an iPad via Unison USB.
Moved none sonic impressions of the pi2aes 2.0 to the more relevant Pi2AES thread. https://www.superbestaudiofriends.o...go-rpi-aes-streamer.10471/page-56#post-408714
. Moved to correct forum
What are the sonic differences between the PI2AES 2.0 and the first PI2AES?
The 2.0 uses the latest NDK NZ2520SDA clocks and it allows for external 5V linear supplies. Otherwise they are the same.
Whether or not that makes a sonic difference depends on the ability of your system, and your ears, to resolve them.
does anyone know if there would be any benefits to a regular ol' 75ohm RCA cable w one end terminated in BNC—connecting the BNC end to the pi2aes and the RCA end to the coax input of my DAC?
I've seen talk of RCA-to-BNC adapters here, and I was wondering if this would effectively play as such (and if there is any sonic goodness to be reaped here too), or if I should just get a straight RCA cable?
Either would work perfectly.
Technically speaking I think the BNC is a true 75 ohm or 50 ohm (depending on the connector). The RC A connector is not true 75 ohm connection, but that never stopped composite video or S/PDIF. To me, I like the BNC if you can use it because it is a more secure as well as locking connection.
So I should go with BNC on the streamer end and RCA for the DAC end? Man, I thought BJC's coax cables were 75ohm...
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