Chord Qutest

[barrows]

Personally I am no fan of MQA, but it may be added to the Rendu firmware, that would be a question for Jesus.

I use Audirvana, so I could already decode MQA if I ever wanted to.  If you are using Audirvana+, you can already decode MQA with it as well.

[jos]

12 minutes ago, barrows said:

Personally I am no fan of MQA, but it may be added to the Rendu firmware, that would be a question for Jesus.

I use Audirvana, so I could already decode MQA if I ever wanted to.  If you are using Audirvana+, you can already decode MQA with it as well.

I am not a fan too, but for people with Tidal it will be nice to have and a reason not to buy an MQA DAC, but the UltraRendu instead. A+ is doing the first unfolding, but after that there have to be a second one to make the unfolding complete.

[pl_svn]

btw... this is how I'm rolling my Qutest 

(details are in my signature)

[Dr Tone]

20 minutes ago, jos said:

A+ is doing the first unfolding, but after that there have to be a second one to make the unfolding complete.

 

There is no second unfold, after the first unfold, it's basically done at that point.  There can be MQA filters and further upsampling applied by a MQA renderer.  The Sonore couldn't do the renderer portion as it's only a network endpoint, not a DAC.

[barrows]

Rendus will not be allowed to the so called "second unfolding", that is only allowed in DACs (part of MQA's nefarious marketing plans in my opinion).  So only the first unfold would be possible in any case.

BTW, the so called "second unfold" is nothing more than an oversampling step with the MQA filter.  Anyone with Audirvana+ can do this oversampling, and they can mimic the MQA filter if they want a filter which is that leaky, or they can make another filter type (which could be better...).  After the first 'unfold" there is no more solution to be had.

[jos]

6 minutes ago, pl_svn said:

btw... this is how I'm rolling my Qutest 

(details are in my signature)

Impressive, can you explain the chain?

[pl_svn]

Roon Server running on a Mac mini (powered by an UpTone Audio JS-2) > Auralic Aries (powered by a Vinnie Rossi Mini Pure-DC-4EVR) > UpTone Audio ISO Regen (powered by an UpTone Audio LPS-1) > Audiophilleo SE (powered by its PurePower Battery) > Chord Qutest (powered by an UpTone Audio LPS-1.2) > Don Garber Fi "Y" (6922 tube pre) > Don Garber Fi "X" (2A3 power amplifier) > Klipsch Cornwall III

 

[barrows]

10 minutes ago, Dr Tone said:

 

There is no second unfold, after the first unfold, it's basically done at that point.  There can be MQA filters and further upsampling applied by a MQA renderer.  The Sonore couldn't do the renderer portion as it's only a network endpoint, not a DAC.

Actually, we probably could do it, physically, in the Rendu, as we likely have enough processing power to make it happen, but MQA would not allow it, only in DACs.  Just another point against MQA's approach, not allowing the "full unfold" to be done in software players.  This how they sell MQA to DAC makers, saying look at how many new DACs you will sell!

[jos]

4 minutes ago, pl_svn said:

Roon Server running on a Mac mini (powered by an UpTone Audio JS-2) > Auralic Aries (powered by a Vinnie Rossi Mini Pure-DC-4EVR) > UpTone Audio ISO Regen (powered by an UpTone Audio LPS-1) > Audiophilleo SE (powered by its PurePower Battery) > Chord Qutest (powered by an UpTone Audio LPS-1.2) > Don Garber Fi "Y" (6922 tube pre) > Don Garber Fi "X" (2A3 power amplifier) > Klipsch Cornwall III

 

Thanks, very impressive. I guess it could not be done better! But my wife...(you known)

[jos]

1 hour ago, barrows said:

Actually, we probably could do it, physically, in the Rendu, as we likely have enough processing power to make it happen, but MQA would not allow it, only in DACs.  Just another point against MQA's approach, not allowing the "full unfold" to be done in software players.  This how they sell MQA to DAC makers, saying look at how many new DACs you will sell!

There is an announcement on the Sonore website on the page of the UltraRenu, that MQA will come soon for every DAC. That was tricking me.

[jos]

8 minutes ago, jos said:

There is an announcement on the Sonore website on the page of the UltraRenu, that MQA will come soon for every DAC. That was tricking me.

In addition: it was on the small green computer site, sorry.

[De]

I think ifi iPower should be a good upgrade.

[Dr Tone]

29 minutes ago, jos said:

In addition: it was on the small green computer site, sorry.

 

The latest comment from Jesus.

 

 

 

[barrows]

50 minutes ago, De said:

I think ifi iPower should be a good upgrade.

sbooster is way, way, way better.  IFI is the least effective power supply for the ultraRendu.  

[rickca]

1 hour ago, barrows said:

 IFI is the least effective power supply for the ultraRendu.

I'm glad somebody finally said it.  Sonore should stop selling them.

[barrows]

IfI is a capable entry level supply, the Rendus do better with it than many other products that serve up USB audio, but like anything, they can be improved upon.

The reason the Signature Rendu SE is quite a bit more expensive is due to the no compromise power supply, so there is more performance to be eeked out there.

[pl_svn]

ooops, sorry: thought this was the Chord Qutest thread 

[jos]

10 hours ago, De said:

I think ifi iPower should be a good upgrade.

Of course, to start with. I think I will start with the Uptone USB Regen standard power supply, together with the Sbooster Ultra upgrade for this device. This if I can't sell my Regen right now. Later on I can buy the Sbooster, or something similar.

[jos]

4 hours ago, barrows said:

IfI is a capable entry level supply, the Rendus do better with it than many other products that serve up USB audio, but like anything, they can be improved upon.

The reason the Signature Rendu SE is quite a bit more expensive is due to the no compromise power supply, so there is more performance to be eeked out there.

Yes, I known, but far to expensive for me.

[jos]

10 hours ago, Dr Tone said:

 

The latest comment from Jesus.

 

 

 

Thanks, and it make sense.

[jamesg11]

On 07/03/2018 at 6:37 AM, pl_svn said:

Roon Server running on a Mac mini (powered by an UpTone Audio JS-2) > Auralic Aries (powered by a Vinnie Rossi Mini Pure-DC-4EVR) > UpTone Audio ISO Regen (powered by an UpTone Audio LPS-1) > Audiophilleo SE (powered by its PurePower Battery) > Chord Qutest (powered by an UpTone Audio LPS-1.2) > Don Garber Fi "Y" (6922 tube pre) > Don Garber Fi "X" (2A3 power amplifier) > Klipsch Cornwall III

 

Happy with the lps1.2 on the qutest?

Looking to maybe get both ... upgrade from ifi micro idsd bl.

[pl_svn]

very happy! sensibly better than the 2Qute, powered by a JS-2, it replaced 

I have, though, tried the stock SMPS only in my secondary system using the Qutest instead of Arie mini's internal DAC and... it really was night and day there 

[jamesg11]

Thanks, promising! - what power cable did you use from the lps1.2 to the micro usb input on the qutest?

[pl_svn]

a 5.5x2.1 DC barrel plug to USB Micro cable custom built by Ghent Audio based on their DC01 

[jamesg11]

Yes, what I had in mind - been happy with my ghents thus far, including the dc1!

Gotta get the dac first ...