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Tube amps under $7500
@mikhailark  a lot of bigger companies have gone belly up, I wouldn't worry about that, tube equipment is easy to work on.  
Tube amps under $7500
https://www.space-tech-lab.com/NewPhotos-2017/SE-845-100W/SE-845-100W-3.JPG 
Vacuum Tube preamp with my KRELL KAV 250a, a no no......WHY?
@atmasphere  there were many krell amps damaged from BAT tube preamps, they got a bad batch of Jensen capacitors. If it would have only been one amp damaged, krell wouldn't have went to the trouble of putting capacitors on the input of their amps ... 
Vacuum Tube preamp with my KRELL KAV 250a, a no no......WHY?
If you haven't bought a tube preamp yet, you could buy a transformer coupled tube preamp, then you would never have to worry about it. Most capacitor coupled tube preamps are fine with solid state amps. Again just remember to turn your system on i... 
Vacuum Tube preamp with my KRELL KAV 250a, a no no......WHY?
I’ve been using a tube preamp for several years with my krell ksa 300s, it’s just as safe as using a solid state preamp. The reason this subject always comes up is because there was a certain BAT tube preamp that leaked DC and damaged amplifiers. ... 
Space Tech Lab super rectifier
@tablejockey it's not just a rectifier tube swap, it's like having a separate power supply. The B+ is supplied by the super rectifier and the equipment you use it with supplies the filament voltage for the signal tubes.  
Linlai E 6sn7 tubes
I never could figure out why they are called cv181 when the nos cv181 tubes have a different heater current than a 6sn7 tube.  
Linlai E 6sn7 tubes
@vthokie83  I bought my Linlai elite 6sl7 tubes from the same seller as you. I've had mine a few years, powered on 24/7 most of that time and no problems at all.  
Did anyone else disconnect thier equipment due to the geomagnetic storms?
All my equipment is on 24/7 and most of it is tube equipment.  
Solar flares are here, everyone unplug your dryer!
@mahgister  instead of relying on others why don't you prepare your home for potential power grid meltdown. People lived in cold climates before electricity.  
New expensive power cord for amp and no change in sound?
@bimmerlover I have to question the thinking that it's the last 5 feet, the equipment draws the current, so it's the first 5 feet.  
What if a high end speaker measures really badly?
@helomech  so you believe that Harmon and Toole don't have any bias, after all they are competing in the industry. All the Toole listening test I have read about place one speaker in the same position not taking into account the design of the spea... 
Mobile Fidelity Settlement Update
@texbychoice  it doesn't matter if you think an all analog process is inferior, people should get what was advertised. @secretguy  I don't think anyone should get anything more than their money back if they choose.   
Mobile Fidelity Settlement Update
@texbychoice  so it's okay to lie to your customers,  good to know you wouldn't care if a business lied to you. I don't think people who bought the 1 step albums should get more than their money back including any shipping. Mobile fidelity should ... 
Mobile Fidelity Settlement Update
@texbychoice the process is called 1 step and was supposed to be all analog.  You would be okay with sausage that was advertised to be all pork, but it had 50% turkey in it?