[Sorrodje]

  Base on Bob Katz claims recently on innerfidelity "Big Sound 2015" high impedance cans like HD800 require high voltage not high current to shine.
Can't agree with him anymore on that statement, my Phonitor with the 120V technology really makes the HD800 sing like a high end tube amp.

 
Bob Katz's statement is not debatable. All High Impedance cans are voltage driven. period.   If you love your Phonitor with your HD800 , that's pefectly fine though. Like a lot of SS amps, I assume the Phonitor has really no problem to provide all voltage the HD800 needs.  My  2 cents. 

 

[Sorrodje]

  the new Sennheiser HD-800 has reengineered driver and the HDVD-800 plays DSD files
 
 

 
Source ? 
 

 
Yes, I'm doubtful. 

 

[JamieMcC]

hmmm no details, but obviously gold in colour?  
 

 

 

[Blackmore]

You mean those tube amps that have SS output stage?
 
 
 
Quote:

  Base on Bob Katz claims recently on innerfidelity "Big Sound 2015" high impedance cans like HD800 require high voltage not high current to shine.
Can't agree with him anymore on that statement, my Phonitor with the 120V technology really makes the HD800 sing like a high end tube amp.

 

[TMRaven]

  Is the Valhalla 2 good with the HD800? Do I need a DAC?

 
 
I prefer the Asgard2 to the Valhalla2 (stock tubes) with the HD800.  Asgard2 is slightly warmer and more refined sounding.  It's always nice to have a decent dedicated dac.

 

[daphen]

   
 
I prefer the Asgard2 to the Valhalla2 (stock tubes) with the HD800.  Asgard2 is slightly warmer and more refined sounding.  It's always nice to have a decent dedicated dac.

I see. Is there any kind of extra maintenance with tube amps?

 

[Zoom25]

Reengineered drivers? I too need a source on that.

 

[Khragon]

  He does not mention what kind of cable he uses. I just ordered a replacement  Zy Cable, will see how that goes.

I asked, it's silverplated copper with teflon.  Doesn't sound too bad, won't get mine until next week unfortunately as he's a bit behind.

 

[TMRaven]

  I see. Is there any kind of extra maintenance with tube amps?

 
They take longer to warm-up than solid-state amps, and the tubes have limited life-span.

 

[daphen]

   
They take longer to warm-up than solid-state amps, and the tubes have limited life-span.

Alright, how limited though? 

 

[whirlwind]

 

   
They take longer to warm-up than solid-state amps, and the tubes have limited life-span.

Alright, how limited though? 

Don't be worried....they last a long time.  2500 hours...some 10,000 hours, like a C3g 

 

[daphen]

  Don't be worried....they last a long time.  2500 hours...some 10,000 hours, like a C3g 

Oh. I don't think I'll use the same amp for that long.

 

[BirdManOfCT]

  Reengineered drivers? I too need a source on that.

Photoshopped? 

 

[jsgraha]

They take longer to warm-up than solid-state amps, and the tubes have limited life-span.

Maybe valhalla did warm up longer than asgard, I don't know, but my experience with tubes amp was the other way around. My current tubes amp (and previous one, wa6-se) are quicker to warm up than my previous solid state (burson and violectric). Stratus only need about 15-20 minutes to sound good, while soloist took about an hour plus to sound engaging and not cold. I tend to leave solid state amp always on.


But tubes had their limited lifespan though. Finger cross, all the tubes that I have still healthy after 2-3 years.

 

[RUMAY408]

   
They take longer to warm-up than solid-state amps, and the tubes have limited life-span.

Agreed SS Amps warm up a lot faster.
 
The issue for me with tubes is cost add 30% to 100%+ to the stock setup