We hope to have the first pics by next Monday and 2-3 days after to have them in stock
Hi Allo, im building a replacement for my squeezebox with a raspberry pi 3, ive got it set up with picoreplayer right now as it has the least noise on the pi’s headphone out(have tried volumio, Rune and Max2play) .
Im trying to decide on which Dac for it, Allo Boss, hifiberry, Audiophonics are all on my short list, I love this guys reviews youtube.com/channel/UCR4tuh … PD0q17sPEA have you considered sending him one for review or have you already?
Hi Piero
we sent him the units (Boss Kali Piano) a while back but I think he was a sick and just got back to work. Hopefully he will review it soon
PCP just added our drivers to the latest release (Boss and Piano) sites.google.com/site/picoreplayer/home/news
All of the below are good DACs. Enjoy your time in the RPI audio world 
Piero, evaluating a music software from the noise coming out from the PI Jack will for sure lead you to the wrong conclusions: its just bad. Every audiophile distribution (like the one you mentioned) don’t even bother to optimize it, while all the optimization work goes to USB and I2S Playback.
Yup Thanks michelangelo i understand that but wanted to get a set up running while i wait for DAC boards to be in stock, what i dont understand is why with picoreplayer the noise is not an issue its very low but with the others i mentioned its terrible and unlistenable ? Ive heard better sound from a £5 mp3 player headphone out, so why the difference between software? i tried powering with battery and it made no difference to the noise levels.
sorry to go off topic, not meant to be a thread hijack.
Thanks Allo I’ll have to hassle him to get that review done 
maybe its to do with patches that Clive (aka JackOfAll) made that have been added to latest picoreplayer, not sure if they are added to Volumio or others
Could be or not but as @michelangelo said, why bother to put any effort into it as it will always stay bad regardless how much effort you put in. Any I2S will most likely be better anyway.
How does your amplification pipeline look like is much more interesting. What/which amp/HT reciever do you want to feed from Volumio (or any other Pi player)? That should determine direction of choosing a DAC or a digital feed (like SPDIF) and than decide for one that has the specs and price you seem fit.
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why bother to put any effort into it as it will always stay bad regardless how much effort you put in. Any I2S will most likely be better anyway.
How does your amplification pipeline look like is much more interesting. What/which amp/HT reciever do you want to feed from Volumio (or any other Pi player)? That should determine direction of choosing a DAC or a digital feed (like SPDIF) and than decide for one that has the specs and price you seem fit.
im not putting any more effort into it thats why ive gone back to picoreplayer for now until i get another DAC but would just like to understand why such a big difference between software.
Not sure it matters but the pi is feeding my old but loved Arcam A75 plus amp and sounds far from bad with picoreplayer but like i said unlistenable with others. Price of the DAC for the pi is not really in the equation as none of them are going to break the bank, i dont need digital/SPDIF.
Hi,
I have problem when play DSD file at BOSS+raspberry3+volumio (newest one)
There is short pause every 18-20 second when playing DSD file. Only DSD file.
Already try to change buffer etc. Problem stay.
I try the same setup with rune inside. It play perfectly.
The problem is, i prefer volumio’s sound signature than rune.
Can someone help me?
Thank you
PS sorry for my bad english
Hi,
where can I find a frequency response graph of the Allo BOSS?
Thanks.
AP testing results
Thanks,
you also have the frequency response graph db/hz across the entire audio range?
We don’t , but I can ask for the test to done and publish the results. It will take a few working days.
Hi,
I have Marantz SR 7010 AVR with built-in AK4458 DAC http://www.akm.com/akm/en/aboutus/news/20150917AK4458Marantz_001/
I want to build a hi-res streamer (RPi3 + Allo Boss DAC) to play flac files from my NAS.
Allo Boss DAC is equipped with TI PCM 5122 chip.
Which DAC ( AK4458 or PCM 5122) is better for sound quality?
Each DAC chip has its specifics but most of them do their work well. Probably even or more important is the implementation of the DAC chip into the overall DAC components.
If you consider using any of your Marantz audio functions, it is likely that these functions use the digital parts of the amp and use the internal DAC anyway.
Using the Boss would than mean to go from digital to analog on the Pi/Boss and within the Marants it would go from analog to digital, audioprocessing and again from digital to analog.
So you will only really be using the Boss if you can bypass all digital parts of your amp (for example like NAD does in some of their amps/receivers).
Look at your full chain and think if the chain will become better.
Good luck.
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My idea is: NAS file server (all flac files) → Rpi3 + Boss DAC → 2 x RCA to analog in (AVR) → Dali speakers.
This should bypass the internal DAC of the AVR, shouldn’t it?
But I don’t know which DAC is better (“external” = Boss DAC or “internal” in the Marantz AVR = Asahi Kasei AK4458 ).
Find out if the AVR indeed has a bypass function in which it just amplifies your stereo analog input. Using an analog input does not garantee bypassing the internal digital circuitry.
I cannot tell you which DAC chip + implementation is better.
Maybe also try to feed the AVR from the Pi using a Digital signal, preferably coaxial SPDIF.
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Allo,
Do we have any update on BOSS case?
Offsets were sent today from Taiwan will arrive Thursday/Friday . They look great…
Unfortunately everything will be closed until Monday so Tuesday only I will post the pics. Sorry for the delay.
Allo,
Do we have any update on pictures/availability of BOSS case?