Pi Peregrination 2017 C&C Tour and Contest

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SFDude

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Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #60 on: 13 May 2017, 05:49 pm »
I just am letting folks know I am back in town. I am very much looking forward to trying out the Pi stack as a possible replacement for my SB Touch.
Thanks to John and Letitroll98 for putting this tour together.

It's going out to you possibly on Wednesday (or maybe earlier) Wayne! I'm just going to wrap up when I have some extra more time to actually sit down and listen to it (I managed to get it set up but have had zero time to actually critically listen to it).

-dave

Wayne1

Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #61 on: 14 Jun 2017, 02:02 am »
I received the Pi stack almost a month ago and just recently sent it on it's way to gregfisk.

I had a great deal of fun with the Pi stack. It opened my eyes to the world of Single Board Computers and all the various Hardware Attached on Top devices.

As mentioned, the Raspberry Pi came with the Allo Kali reclocker and Piano DAC HATs.

I first ran it with the Rune software that JohnR loaded. It had no trouble playing the USB stick and it sounded very smooth and natural.

I normally use a SqueezeBox Touch with EDO. I stream from a desktop with multiple hard drives over ethernet into the Touch. I attempted to connect the Pi into my network with the software JohnR suggested but I could not get it to see my drives.

I contacted JohnR to see if it would be okay if I used different software. He said it would be no problem. I recently tried out Roon and now that is all I will use. I found a newer image of Roon bridge called Ropieee which is very easy to install.

I got the Pi up and running using USB out to an iFi microDSD BL on loan from Pez. It sounded fantastic. I then contacted the author of the image to see if he could add the Allo Piano DAC to the devices used with the Pi. He was able to get the new image made and loaded the next day.

Here is where the unit really starts to come into it's own. Roon allows upsampling via software. The DAC chip in the Piano is the PCM5122 which will accept up to a 384 kHz/32bit signal. I set Roon to upsample to 384/32 and the best sound I have heard to that point in time started to come out of my system. Imaging was so much better. More precise. Highs were quite a bit cleaner. I have read others discuss benefits of upsampling but I have never had a piece of gear that would allow me to do it. Now with the Pi stack and Roon I could hear what everyone was going on about.

For most of the time I had the Pi Stack I just listened to my collection with an amazed look on my face. This $200 stack and software truly re-energized my interest in my music and gear. I tried running the Pi into the iFi but it was not at all happy with the upsampling with lots of stuttering. Without upsampling it played fine. I did prefer the sound of the Pi Stack with upsampling to the Pi going into the iFi with no upsampling on 16/44 material. The iFi started to get closer with higher resolutions.

I did try a different power supply with the Pi Stack and I did easily hear differences. The linear PS that JohnR sent along in very well built and sounds very good but better sound is able to be squeezed out of the stack but at a much higher cost.

I also ran an image of the Logitech Media Server called SqueezeLite designed for the Pi. I compared the Touch analog out to the Pi stack and the Pi was clearly superior in all ways. Better image, deeper and tighter bass and clearer highs.

For the $200 the Pi Stack is an absolute bargain in today's audio world. For a Cheap and Cheerful system, I cannot think of a better piece of gear to use.

The Pi Stack opened my eyes into the world of SBC and HATS. I really think this is a way for people to move into very high quality digital audio at a very low price. It is also a way to keep your system up to date at a very low price. In the very near future their will be quite a variety of different DAC boards along with reclockers and isolators. Allo is rumored to be working on a R2R DAC boards along with one using the AKM 4490 series. Another project I have heard of is using the ESS 9018K2M. Perhaps a HAT could be made for just the analog section so you could choose between solid state or tube outputs. This way if a new DAC chip comes along you can easily swap out the DAC HAT without having to change out the software or analog output section you have grown to love.

SFDude

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Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #62 on: 14 Jun 2017, 02:35 pm »
This. Will echo the same and if you're inclined to actually put in some effort to build a Pi Stack, get the software installed and configured appropriately, you'll be rewarded for that effort. And be upgradeable too in the future!

-dave


For the $200 the Pi Stack is an absolute bargain in today's audio world. For a Cheap and Cheerful system, I cannot think of a better piece of gear to use.

The Pi Stack opened my eyes into the world of SBC and HATS. I really think this is a way for people to move into very high quality digital audio at a very low price. It is also a way to keep your system up to date at a very low price. In the very near future their will be quite a variety of different DAC boards along with reclockers and isolators. Allo is rumored to be working on a R2R DAC boards along with one using the AKM 4490 series. Another project I have heard of is using the ESS 9018K2M. Perhaps a HAT could be made for just the analog section so you could choose between solid state or tube outputs. This way if a new DAC chip comes along you can easily swap out the DAC HAT without having to change out the software or analog output section you have grown to love.


gregfisk

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Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #63 on: 14 Jun 2017, 06:02 pm »
I do have the unit in the house and the box seems to be in good shape. When I get a change I will take it next door and see if I can get it running, probably not until this weekend.

Greg

rotarius

Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #64 on: 19 Jun 2017, 04:25 am »
Too late to join the tour?  I just bought the Allo Boss and would love to compare to the Kali/Piano stack!

Letitroll98

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Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #65 on: 19 Jun 2017, 09:38 am »
Just send a PM with the required info.

JohnR

Re: Pi Peregrination 2017 C&C Tour and Contest
« Reply #66 on: 22 Jun 2017, 04:44 pm »
Roon allows upsampling via software

 :thumb: I wasn't aware of that until reading your post. Makes the Pi even more viable.  :thumb: