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Shanti Dual LPS 5V/3A , 5V/1.5A
Shanti Dual LPS 5V/3A , 5V/1.5A
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Old 8th July 2020, 07:17 AM   #1621
Lso is offline Lso
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Join Date: Feb 2020
I have bought the Nirvana to use with Khadas Toneboard, instead off a IFI PS.
The problemer I have is that the sound is heavly distorted from time to time on powerup, i have to remove the power to Khadas and inserted it again, is it because of a slow Nirvana power on or what todo?
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Old 8th July 2020, 07:46 AM   #1622
cdsgames is online now cdsgames  Canada
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Hi LSO


You get distorted sound for how long ? Did you try SW on and off ?
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Old 8th July 2020, 07:54 AM   #1623
Lso is offline Lso
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Join Date: Feb 2020
I do always power off the stereo, but when i power on and play music it's about 10% volume and heavly distorted. when i take the power to Khadas and immediately plug it, the sound is ok. I didn't have that problem with the IFI power supply.
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Old 8th July 2020, 08:34 AM   #1624
cdsgames is online now cdsgames  Canada
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So your stereo is power off and when you power on (stereo) you hear distortion .

Might be some weired ground loop . Did you try powering Khadas board with Nirvana earth SW on and then try powering with Nirvana SW off ?

Last edited by Variac; 12th August 2020 at 06:41 PM.
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Old 8th July 2020, 08:50 AM   #1625
Lso is offline Lso
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Join Date: Feb 2020
Yes that is corrct.
I will try and test with the earth switch.
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Old 8th July 2020, 09:17 AM   #1626
Lso is offline Lso
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No luck, same problem.
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Old 8th July 2020, 10:18 AM   #1627
cdsgames is online now cdsgames  Canada
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Join Date: Jun 2015
Please contact us by email with a diagram of your connection. We have a Khadas tone board here and it works perfectly with Nirvana.

To me it seems that your AMP has some earthing issue and on power on it messes with your Khadas (most likely Xmos ) . When re powering Khadas Xmos is reset and works fine. It is perfectly possible that it works with IFI or any cheap SMPS and yet it has problems with Nirvana (CMC on AC line) and other SMPSes Unfortunate but Khadas tone boards do not have Common Mode Chokes on power lines. Earthing is always a hard subject and hard to debug. Try connecting the earth (chassis) of AMP to Nirvana earth lug (reduces the noise it makes on power on). (I assume that your AMP is earthed , 3 prong AC cable)

If your AMP is not earthed (bad) connecting the chassis of AMP to Nirvana earth lug might, still, solve the issue

Last edited by Variac; 12th August 2020 at 06:40 PM.
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Old 8th July 2020, 11:00 AM   #1628
Lso is offline Lso
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Ok i will email you, what is your email?
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Old 8th July 2020, 12:48 PM   #1629
cdsgames is online now cdsgames  Canada
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Join Date: Jun 2015
Quote:
Originally Posted by sychan View Post
@cdsgames Is there a US/Canadian distributor for the Rev and Nirvana? Chicago Electronic Distributors doesn't show it on their website and they didn't respond to my query on FB.

Some Nirvanas and Rev will be sent to Chicago Distri this week
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Old 8th July 2020, 12:50 PM   #1630
al2813 is offline al2813  Belgium
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Join Date: Feb 2020
Location: Belgium
Hi, first of all amazing thread. I just spent all my lunch break reading it...
I am currently running the following setup:
RPI 4 - Ropieee XL Roon bridge
Topping D50s USB DAC. Both are powered by a 5v 5.1A powerbank.
Hypex Ncore dual mono HP250MP amp
KEF LS50

I have been looking to take to the next level on the source side. Have been thinking of getting the RME ADI-2 DAC but hesitating due to the price. Was also considering the USBridge Sig and hesitating on the Shanto side due to cost. my questions:

1. Will I see an improvement with the USBridge Sig?
2. How would the Revolution contribute to this upgrade? The RME has rave reviews but of course costs a LOT more.
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