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

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M

matthiasw

Member
Joined 2010
cdsgames said:
I spend a long time on sound quality of this unit . Many PCB revisions.
My model is to test for everything and any deviation (noise) as long as I can measure its fair game (Bruno P. quote) while I will not comment if you can hear it.
Now sound quality has an subjective side. I did my best to incorporate audiophile "myths " into the unit and the result was (for most of the times) a clear reduction in H. Some changes (like RFI removal) were very slightly visible in the AP but clearly very audible.
I also incorporated work from Rasmussen / Abraxalito (IV pre filter) but I used my own schematics and tests
At last ,,, I want to clearly say that low impedance power supply is one of the important aspects of Rev . Now only we used lots of lytics on the PCB , but also we used a lot of supercaps in AVcc (Rasmussen/ Ians pioneering work) and many subjective impression point to the massive importance of having enough electrons on board (especially for Avcc and opamps)
Revolution Dac is made for audiophiles , but not against THD. Who said that great THD means low SQ ?
Click to expand...

Congratulations,

do you provide a USB cable solution for Rev so it can be powered completely via USB Vbus without additional power supply?

Thanks

Matt
 
R

reelben

Member
Joined 2017
cdsgames said:
we are releasing a cable (its actualy made in flex PCB) that can connect the USbridge to Rev Dac


This flex PCB has controlled impedance ..(better than any cable)


Rev needs less than 400ma..so 1A its plenty of power
Click to expand...

Hi,
I have a question about my usb cable now :)
Now can I not used my usb cable from usb bridge signature to the Revolution dac... 😀
The revolution dac used a other usb in.
Where can I order this cable..
Kind regards,
Ben 😉
 
M

misterdog

Member
Joined 2011
reelben said:
Hi,
I have a question about my usb cable now :)
Now can I not used my usb cable from usb bridge signature to the Revolution dac... ��
The revolution dac used a other usb in.
Where can I order this cable..
Kind regards,
Ben ��
Click to expand...

Though.


cdsgames


Sorry but we still dont have the cable , we will get it in about 1 month


We do not recommend it for best audio performance
Click to expand...

Typo ??
 
C

cdsgames

Member
Joined 2015
Revolution has 2 inputs...DC barrel for power and USB input for data


Please note that both inputs feature specific filtering to remove the influence of power and DATA source (and while its doing a good job , a better source means always a better sound in subjective impression )



Using a USB cable (split) for USB data and power (with DC barrel adapter) is not recommended for SQ
 
R

reelben

Member
Joined 2017
cdsgames said:
Revolution has 2 inputs...DC barrel for power and USB input for data


Please note that both inputs feature specific filtering to remove the influence of power and DATA source (and while its doing a good job , a better source means always a better sound in subjective impression )



Using a USB cable (split) for USB data and power (with DC barrel adapter) is not recommended for SQ
Click to expand...

Hi cdsgames,
I can use DC power in my shanti dual psu.
And only I see for audio(data) in... revolution used a (mini) USB c?
Than I must I use a other cable see to found for that (AudioQuest)
Only I found my telerium usb better :) only it is usb type a to type b cable.
We go see it as the revolution arrives in juni :)

Ben ;)
 
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M

misterdog

Member
Joined 2011
Signal input on the Rev.DAC is USB micro B.

The new ribbon cable from Allo is for this, will not cost anything like a Tellerium Q Black.

You could send it to me to test as my DAC has a USB B input. I'll pay you for the Allo cable :)

The Shanti is the perfect power source.
 
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