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Shanti Dual LPS 5V/3A , 5V/1.5A

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I

ianslater

Member
Joined 2014
Received the Shanti this weekend. Noticeable difference. More detail in the quiet passages.
Tighter bass. Better imaging. I didn't think it was possible that a PSU would have so much effect.
Looking for specifics on how to connect earth/ground screw to pi. I think I saw something to connect to pin 6. So with a dig-signature board somehow I attach a wire from pin 6? Any tips or photos would be appreciated.
Thanks
 
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cdsgames

Member
Joined 2015
Revolution Dac was sent for sound quality testing. Once we get the feedback we will release more details


Meanwhile , THD+N is stable at -114 (RCA) thats the limit of our AP. THD is at -120 to -124 (it went a bit down once both channels were connected)


Casing arrives this week and we will do a quick check.



Revolution DAC is coming but I cannot give a date yet. (or price)
 
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SanjeevM

Member
Joined 2017
ianslater said:
Received the Shanti this weekend. Noticeable difference. More detail in the quiet passages.
Tighter bass. Better imaging. I didn't think it was possible that a PSU would have so much effect.
Looking for specifics on how to connect earth/ground screw to pi. I think I saw something to connect to pin 6. So with a dig-signature board somehow I attach a wire from pin 6? Any tips or photos would be appreciated.
Thanks
Click to expand...

What were your power sources before you connected Shanti ?
 
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cdsgames

Member
Joined 2015
weaver4044 said:
Thank you. Apologies if this seems a somewhat trivial detail in amongst all the development work but I had intended to box the USbridge/Katana set-up and realised that I needed to decide for or against Isolator before drilling holes for connectors. Further, if it is without Isolator then a good/safe separation distance between the first two boards needs to be arrived at and this is not immediately obvious.
Should there be an Allo 'official' case for this stack in the future (as has been suggested up-thread) then clearly there also needs to be a corresponding 'approved' set-up.
Click to expand...


Hi Weaver




When we build the USbridge we envisioned the unit primarily as a streamer .


We did test the Katana with isolator but not without . I would recommend some type of thermal isolation betwen Usbridge and Katana (no isolator) since the analog stage (katana) gets to around 50C. Please note that it should not be a major problem since compenents are all rated at much higer C (especially electrolytics c)
 
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chipzahoy

Member
Joined 2009
cdsgames said:
Let me check the schematic again and I will see if I can suggest some modifications
Click to expand...

Hi cdsgames, here's an idea I'd like to run by you. I'd like to bypass the Type-C connector on the clean side, and am considering replacing the caps near the input.

If not limited by board space and cost, what capacitor value(s) and type(s) would you recommend? Thank you!
 
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chipzahoy

Member
Joined 2009
cdsgames said:
Hi


I would ask what PSU are you using ? If you use a SMPS or LPS , I would add any CMC (with a capacitor before of at least 220uF and one ceramic cap) and the same after.


I would go for 500-1000uF in total.
Click to expand...

I'm using Shanti to power my Digione Sig/RPi stack (soon to be Audiophile Pi). Just to be sure, by CMC do you mean common mode choke?

Thank you!
 
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chipzahoy

Member
Joined 2009
Shutdown98 said:
It plays music :)
Cannot say anything about sq at this point. Will report later when i have spent more time.

I have now placed both power supply at the digione sig or is it better to connect power to the USBridge sig direct?
Click to expand...

Would love to hear your impressions once the unit has settled =)

IIRC, Allo recommended connecting to the USBridge direct instead of the "dirty side".
 
S

Shutdown98

Member
Joined 2010
cdsgames said:
In fact we have a case of USbridge Sig with Digione Sig holes...its available on ordering page
Click to expand...

I guess i missed the option when i ordered.
No problem to drill a couple of extra holes.

For now i have connected ground to the pcb point (because back plate with ground connector is not mounted at this point) and connected power direct to the USBridge input.
Thanks.

Do i need to connect ground to digione sig board?
 
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