Michelangelo, can you answer this question?
Can I feed my Kali Reclocker with a 5V/650 mA linear powersupply? Is 650mA enough for the Kali alone? I feed my RPI and Dac separately.
Hi John, I really don’t know the answer to your question. Hopefully Allo will reply to this.
However I have another comment: if you already give separate PSU to pi and DAC, I would not worry a lot on the PSU quality for Kali, since it already has very good regulators onboard.
Kali needs about 100mA
Hello
Just testing Mamboberry LS DAC+ vs Allo Piano DAC, as I mentioned previously I have only compared Asus Xonar Essence XT vs Mambo, now i can say to Piano vs Mambo (PCM5122 vs Sabre ES9023) paired wit Kali Reclocker:
Bass: Kali goes little deeper, rest the same
Mids: Kali seems to be sligtly warmer
Hi Mids: aprox. the same, Mambo is sligtly more transparent but not big difference
Higs: same as above for high mids no big differences maybe maybe is mambo little more transparent in Higs maybe… need to check my favourite records…
If it is not my subjective opinion, Piano is little more balanced (more polite), and has slighlty better 3D stereo imaging, but i see no big differences
between these two DAC. Rest of assembly is Rpi3, ifi iPower, moode player (will also try Volumio and Rune later…) Amplifier is Yamaha AS701, speakers
reworked Visaton Experience V20 (2x W200S, reworked crossover for 2x Fountek FW146 and Peerless 810921) / Scanspeak D2608/913000 .
After more testing i will decide which DAC will be sold… 
For michelangelo: do you have the same finding ?? I suppose that you have tested also these two DAC yet…
PS: i think that the most important job is doing Reclocker (overall amount of details…) paired wih any DAC
After another comparing: i would say that it is almost identical sound…maybe some nuances…
I would say that stereo image is more open with Piano and sound is sligtly more open/you can hear better separating of instruments… which creates like a better wall sound around… thats all from final testing, overall piano is not more polite than mambo rather more open… and passionate
Hi boys…
Ive received my Kali today.
I’ve installed Kali in a working system with rpi3 and piano 2.1… Volumio version is the last provided by Michelangelo for the Piano 2.1 dac test.
Before install, with Allo piano 2.1 driver and 2.0 configuration (no subwoofer) all was working good… After mounting i have drops out and stops of music playing.
A little video…
youtu.be/ZeqhS0hjBKs
when lights are red audio engine stops… when blue… audio works.
I cant connect to web interface and the only solution i’ve found… is remove Kali.
Ideas?
I see you’re using a different PSU. Is it at least 3A \ 5V?
Hi Michelangelo… i have 2 psu: the first is a rpi original 5v 3a that feeds rpi3… the second (connected with kali) is a linear psu provided by audiophonics with 5 volts and 3A. The jumper is off (so kali and dac are feed apart)…
Im trying to back to the last Volumio image and psu configuration change…
@allo, as the Kali does not require any driver (or depends on any I2C signals), how does it detect which crystal it needs to use? (Related to the sampling rate of the music playing)
As some other boards with multiple crystals do depend on their driver to select the correct one.
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Mea Culpa… rpi psu provide 2.5 Ampere. So i need a 3A psu…
I Hope you forgive me…
Marcello don’t worry !
Let’s try to understand what causes this…
Can you try to not to connect the pi to PSU and power everything trough Kali? Does it work this way?
Works… but so so… sometime stops. I ordered the Allo psu…
But is strange… if Kali dont feed rpi… need (kali + piano) more than 2.5 A? Is a great amount of Ampere…
I wait the new psu and will see 
Wait, I think at this point you might have a faulty Kali. I will ask Allo to contact you to see if that’s the case, and eventually send a replacement
Thank you Michelangelo!!! I wait…
Honestly , in the (many) units sold I am yet to see a faulty one…
Seems to me that its a problem with RPI connectors connection or try reinstalling the software. (remove Kali before reinstalling the software and see if you get the same problems)
Hum… i have simply connected kali in a working system (rpi and piano 2.1)…
Or better, before kali all was working good…
Yes, i can try to reinstall system… but after removed the kali pcb… the system is stable and working.
Maybe a psu problem? Or other ideas?
Notice that my psu working good with a rpi2 + audiophonics dac…
ps Kali is connected to rpi and piano to kali (hat position)… Maybe there is a microswitch configuration in kali that i can do?
I think this is where the issue is:
Hi Michelangelo… i have 2 psu: the first is a rpi original 5v 3a that feeds rpi3… the second (connected with kali) is a linear psu provided by audiophonics with 5 volts and 3A. The jumper is off (so kali and dac are feed apart)…
Can you reconnect the jumper, and do not feed the PI. Does it work that way?
Yes, working little better but sometime audio stops… with flashing red light.
This night ill try to:
Reflash Volumio (without kali) put the jamper, install Kali… and try…
After that the only thing i can do is wait for the new psu…
Can you measure the volt output of the PSU you’re currently using?
(I’m interested in finding the root cause for this)
Yes, this evening… in front of psu there is a lcd display… i remember vu is set to 5.04.volt
but ill use a multimeter later