You're welcome. Less than 4000 hours and probably nearer 3000. Now I should point up that at weekends, I leave my amps on 24 hours, i.e. I don't shut them down Saturday and fire them back up Sunday - they just stay on and it reduces the stresses on the components. If it's summer, I leave the...
Following up on this thread I wanted to update folks on what I discovered since. All of my description is referenced against the fact that I change tubes frequently and never use them to anywhere near the point of exhaustion.
Nagra sourced: Recently (ish) Nagra have stopped supplying Shuguang...
Hi,
Not sure if anyone answered your question. So here goes, The tubes with the larger metal structure are Shuguang. There's various grades of these, but they are all mid tier. The other PSvane tube is a splinter of Shuguang dedicated to making "top tier" tubes at premium prices. Point is...
Hi Ovemitt,
Did you ever pursue some 845 tubes for your VPAs? I'm just about considering some replacements (I change them early and keep the prior quad as spares). I did notice that PSvane have launched some new 845 with standard size glass that will fit. I include a link here. If you tried...
Sounds like you're smitten niroda... I'm not sure a 10 year old tactical product release like the Jazz was in a fair contest with the latest flagship of Zanden, but as jfrech alludes, they will have differing characters and are probably consistent in that regard; buy with your heart perhaps...
It is a great brand and carefully designed and engineered. Currently there's a replacement to the digital line up awaited, but not sure if Zanden will follow the industry with ever more colourful pricing. If it's a precedent, the series II 3000 Pre, though more expensive than the outgoing model...
Thank you jfrech. I hve wondered if the HDA might be the spiritual (mosfet) successor to the VPA. No insurmountable reason to build the HDA as towers yet Nagra did so. It wasn't so long ago that Nagra didn't recognise any need for more than 60 watts. Times change and in any case, you can hear...
Thanks Ovenmitt, Pretty useful data point for me. I wondered if all that silent PS and circuit architecture of the HD Pre would be wasted on a relatively straightforward tube design from 1998. Fantastic to hear that is not the case, though I noticed my wallet just sprouted legs and ran off...
Oh well, that's puts paid to tying the Sophias. No reason to think they can build a better 845 than they can a PX25... Non Nagra tubes will invalidate your warranty if yours are under warranty still, btw.
If you do go down the NOS (or new production) rolling avenue (and certainly I prefer NOS...
Niroda,
I haven't compared the respective Pre's, but it is a thought that had occurred. I do have the Zanden DAC (their latest version currently available) and I can say it hit the Nagra Tube DAC (then called the HD DAC when tested with MPS and VFSs) out of the park. And I'm not even...
Hi Ovenmitt,
Yes, I think I do. I thought (albeit subjectively) the Nagra tube was a bit more resolving and offered a deeper soundstage. Others' and your mileage may vary. Couple of things I would say... My test at the time was a bit rushed but it was relatively new Nagra tubes (Shuguang) vs. a...
Bit late to this thread so some of this may have been answered...fwiw
Elrogs: Sadly won't fit the Nagra VPA. I was keen to try 'em but in speaking with Thomas Meyer (Elrog) the tubes are manufactured at larger diameter to the 845 specification and will not fit. (the glass sits ever so slightly...