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Audio Research preamps EXCESSIVE OPERATING COSTS
InvalidWhat is the watt level for operating your preamp?The manual for the arc Ref 6se says it draws. 130 watts. Not sure how accurate this is and whether a lot lower when in bypass mode.a mc mc255 amp draws about 65 watts at moderate levels.I'm n... 
Constant noisy tubes maybe go solid state?
If you have to stick with the 12at7 I would order the phono stage graded tubes from vintage tube service, Andy really does test them for microphonics. 
Why is black so popular for components?
Seems like tube equipment has more color choices than solid state. 
Newbie, need advice.
Why in the world are they making such powerful outputs.               Maybe to drive an amplifier directly without the use of a preamp. 
I have been a stickler about keeping power cables away from signal cables...on equipment ?
I would think if cable vibrations were a problem then the big heat sinks of solid state amps would be an even bigger problem. Maybe that's why tube gear isn't as bright sounding, just a thought if everything makes a difference. 
Do active speakers interest you? Also, let's talk directivity
I like the idea of active speakers with the amplifiers and active crossover not inside the speaker enclosure, it seems like a better idea because you could isolate the vibrations better. A passive crossover can also be used in a line level position. 
Looking for a vinylesk sounding DAC
What's the deal with this live microphone feed, doesn't it still come through speakers or headphones and amplifiers. I think all audio equipment colors the sound. 
Audio Research preamps EXCESSIVE OPERATING COSTS
I don't understand why you can't leave a tube preamp on all the time, I leave mine on all the time, it doesn't seem to need tube replacement very often.  
Constant noisy tubes maybe go solid state?
I would give andy at vintage tube service a call and see what he recommends. He has tubes rated for phono stages that might work better in a high gain setup. 
Seriously? Why Buy ARC Ref 6SE? seems Benchmark LA4 is a better choice.
Odd that there is limited info available about internal design flow of a preamp.  Maybe a diagram showing signal flow.this would be of interest to many. or maybe not.Maybe if you did some research you could figure out the signal flow, or maybe not. 
I DON'T GET IT!!!!!!
I believe the  usb port on the node2 is for diagnosis not for output. Try a coaxial cable. 
Next Best Upgrade for Tidal MQA?
You should take the advice of myself and several other posts about changing from the avr as a preamp and get a dedicated preamp, that will be your biggest hardware upgrade. 
Next Best Upgrade for Tidal MQA?
I have apogee duetta 2 speakers, a krell amp and a bluesound node 2, I used a marantz sr7007 for a preamp and then an adcom preamp both sounded really bad harsh and not detailed. I bought a tube preamp and now I have exactly what you described, th... 
Next Best Upgrade for Tidal MQA?
I agree with the posts that are telling you to get a dedicated preamp, that should be your first priority before anything else is done. 
Poor Fritz
Kenjit if you can complain this much about the speaker industry, I wonder what you think of the recording Industry?