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Amir and Blind Testing
If you can't trust your own perception why listen at all, obviously you can't enjoy music unless there are graphs and measurements.  
Amir and Blind Testing
Those measuremmy ears can enjoy the music better than any measuring tool can.  
Toilet Paper to Vacuum Tubes
Military satellites still use tubes and long range radar.  
How to tell the current from the amp
A lot of people love the sound of the apogee scintilla, which is both low impedance and low efficiency.  
How to tell the current from the amp
A good indication of a high current amp is how large and well built the power supply is.  
Maggie 1.7i's lack detail. Ideas?
If you are using the marantz as a preamp that is a big part of the problem, I used a marantz AVR as a preamp with a Krell amp and apogee duetta speakers, couldn't get it out of there fast enough. I bought a dedicated preamp and everything fell int... 
What made you change to a 6SN7 preamp?
Decooney you have to ask Mglik about the quad of psvane tubes I was just quoting his post about vintage tube service.  
What made you change to a 6SN7 preamp?
It was said that Vintage Tube carefully tests all tubes for microphonics. Testing equipment has no way to do this. The only way is to plug the tube into your component and wait a bit. Tube sellers cannot do this. Hoarders may have the best tube... 
Please settle a bet!
That  CAN   give the USA ZERO DRINKING water .!     At least we will still have Scotch  
Over Tubing it?
 The phono stage is particularly odd because it runs two 300b tubes as rectifiers.       I have a tube preamp with a separate power supply that can use 300b tubes as rectifiers, I haven't tried the 300b yet as I'm using 1616 rectifier tubes cu... 
Over Tubing it?
Ten of the tubes are in the $1,500-$2,000 each range, and the rest are not cheap either.        Sounds like you are running NOS western electric 300b tubes at that price.  
Please settle a bet!
It's estimated that the US has more untapped oil reserves than any other nation.  
What is Tight Bass?
Krell amps produce great bass because the power supply is so large, the damping factor isn't that high.  
Doping your fuse box
I'm waiting on someone to come up with audiophile breaker, curious as to benefit.   Isoclean  makes a complete breaker box.    
Let me end the Premp/Amplifier sound debate ...
Well tube amps certainly seem to sound different than high current soild state through Heil AMTs and I’ve done videos that easily prove this. Everything was held the same. The Vanessa tracks are within 0.1 dB and the SRV are within 0.5 dB using pi...