new Nagra Tube DAC

Redphu

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Sep 25, 2018
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Hello
Can this dac be paired with soulution 511 amp which has an input impedance of only 2k ohms.
 

ulf

Well-Known Member
Aug 9, 2010
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Stockholm, Sweden
As told before I can upgrade with transformers on the xlr outputs.
But at the moment I got excellent SQ with the rca output to amp.
i don't know if I can do any further upgrad.
 
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Surge1

Member
Feb 12, 2021
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Hi everyone, I just took delivery of a Nagra Tube DAC. The sound is jaw-dropping! I have never heard digital sound like this. It’s in a different league from my other programmable DAC, the PS Audio DirectStream (although at about 4X the price - except the Nagra has a built-in headphone amp), it makes sense that they are not comparable.
It looks like Nagra has made some changes to the case and a minor change to the volume knob - for those with a Tube DAC, does yours have vents at the top of case, for the tube? Mine does not.
 

Surge1

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Feb 12, 2021
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I am using the built in headphone amp - I'm solely using the Tube DAC as a headphone DAC and amp.
MacBook Pro running Roon -> Nagra -> Focal Stellia.
 
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Sniper17

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Nov 27, 2018
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I had my HDDAC upgraded to a Tube DAC, i do not have the vents.
 

Redphu

Member
Sep 25, 2018
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Surge1

you need to hear it on a proper system to appreciate this amazing dac. I thought the Lampizator pacific was amazing until I heard the Nagra.
 

Surge1

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Feb 12, 2021
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It seems like Nagra changed the volume dial on the Tube DAC - mine wiggles a bit when I turn the knob. The plate on which the volume scale is printed moves just a bit because of how the dial is affixed to the chassis. I’m waiting for the factory to reply on a fix. Does anyone else have this issue?

See the circle at the 6 o’clock position? There’s play around that part, maybe about 0.5mm in each direction. This is not how the volume dial was secured on earlier models, and it’s now how the power knob dial is secured.

It‘s not that big of a deal, but at the price of this unit, it’s not great.

Screen Shot 2021-02-12 at 12.14.31 PM.png
 

Redphu

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Sep 25, 2018
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Mine is pretty rock solid. I haven’t noticed any play. I use the remote most of the time but I’ll check again. Do you have the power supply and do you know if you can power non Nagra gear.
 

Surge1

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Feb 12, 2021
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Mine is pretty rock solid. I haven’t noticed any play. I use the remote most of the time but I’ll check again. Do you have the power supply and do you know if you can power non Nagra gear.
Thanks, yeah, let me know if you don’t mind. Earlier versions seem to have v-shaped attachment point to the chassis, where new ones now have the + mark...
A small shim from Nagra would fix it. Maybe mine just didn’t have it?
Nagra is taking a while to reply, which is not great; but let’s see...

I don’t have the Classic PSU - I use two APSC-III PSUs. This is a bedside system, and I want to keep the number of boxes to 1.
I may buy another Tube DAC for my main system, and may get a Classic PSU at that time. Although for that system I use a PS Audio P20 AC regenerator, which I consider a must have. I’m not sure how much benefit the Classic PSU will add to power from the P20.
 

jfrech

VIP/Donor
Sep 3, 2012
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Mine is pretty rock solid. I haven’t noticed any play. I use the remote most of the time but I’ll check again. Do you have the power supply and do you know if you can power non Nagra gear.

Surge1, yours does look different. Wondering if something jiggled loose in shipping? Have you called your dealer?

Redphu, I have a Nagra Classis PSU. I use one outlet to power a classic phono and the other to power my Grand Prix Audio turntable power supply. So yes, you can as long as the input source is the right voltage and current limits.
 

Surge1

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Feb 12, 2021
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Surge1, yours does look different. Wondering if something jiggled loose in shipping? Have you called your dealer?

Redphu, I have a Nagra Classis PSU. I use one outlet to power a classic phono and the other to power my Grand Prix Audio turntable power supply. So yes, you can as long as the input source is the right voltage and current limits.
I have called my dealer and they are waiting for Nagra to reply... it’s been a couple of weeks...
I’ll check the box again. Can you take a photo of yours, if you don’t mind? Thanks
 

jfrech

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Sep 3, 2012
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I have called my dealer and they are waiting for Nagra to reply... it’s been a couple of weeks...
I’ll check the box again. Can you take a photo of yours, if you don’t mind? Thanks
Here is a pic of HD Preamp volume control and the Classic Phono power switch

IMG_0519.jpeg
IMG_0520.jpeg
 

Surge1

Member
Feb 12, 2021
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Here’s mine
Thanks! Yeah, so they changed how the volume dial is secured. No idea why. The new style has play; but it can be fixed with a shim... let’s hope Nagra fixes it. Again, not a huge deal and on a lesser priced DAC I wouldn’t mind. But on a DAC that retails for nearly $30K, it needs to be fixed!
 

jfrech

VIP/Donor
Sep 3, 2012
1,738
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Austin
Thanks! Yeah, so they changed how the volume dial is secured. No idea why. The new style has play; but it can be fixed with a shim... let’s hope Nagra fixes it. Again, not a huge deal and on a lesser priced DAC I wouldn’t mind. But on a DAC that retails for nearly $30K, it needs to be fixed!
Nagra and/or your dealer will fix it. They are a way beyond first class manufacturer. I am sure they are also digging into their engineering and build teams to find out what happened. Let us know how it turns out.
 
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