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Best High Current amplifiers stable into low impedances
You would better off if you get a class A amp, the class A/b amps don’t always have enough heat sinking to drive a 2ohm load at higher volumes for extended periods.   
Does anyone on this Forum have any experience with Audio research ref 610t monoblocks
I heard the 610T amps in a biamped system in a dedicated room. The gentleman was powering the midrange/tweeter of a pair of apogee diva panel speakers, he was using krell FPB 750 MCX monoblocks for the bass panels, and an arc preamp. The sound was... 
Linlai E 6sn7 tubes
I doubt that there is any difference, the global branded tubes might be screened a little better is all the difference would probably be if any.  
Beginner improvements for room acoustics; very helpful Darko video on reverb and RT60
@djones51    Since when does preference matter with you measurement types?  
What is your take on high efficient speakers vs. low efficient speakers?
@winnardt     Apogee duetta signature can be rebuilt to be higher sensitivity, with the newer bass foils and newer midrange/tweeters and better magnets can get them up to 96-98db. ​​  
DSP vs. active analog crossover vs. passive analog crossover. What is your take?
Is the OP talking about passive line level crossovers vs active vs DSP.  
Horizontal vs Vertical biamping
  Not only that, but it's my experience that while the physical XO Hz & order may be known, they are only a starting point. Better performance may be obtained with active XO Hz & order quite different from stock parameters.     Good ... 
Horizontal vs Vertical biamping
That's what I like about apogee speakers, they are already set up for active you just have to change a few wires around. There is also a lot of info on using an active crossover with them, you are correct though most speakers aren't set up like th... 
Horizontal vs Vertical biamping
Why do you have to remove the passive components from the speakers, don't you just have to bypass them and can still leave them in the speaker cabinet?  
Krell anticipator circuits of the 1990s
Both the FPB 600 and the ksa300s have the sustained plateau bias circuit, krell just lightened the power supply on the FPB series.  
Krell anticipator circuits of the 1990s
It seems like all of A ksa300s weighs 3lbs more than the krell FPB 600,  seems like it should weight more given it's double the power. The only FPB series amp I like are the FPB 750 MCX monoblocks.  
Krell anticipator circuits of the 1990s
The krell audio standard was the first variable bias amplifier krell made, it was their flagship amplifier at the time 1993 I believe.  
Krell anticipator circuits of the 1990s
Krell has never been forthcoming with any of their circuit designs and schematics. They also came out with sustained plateau bias long before the FPB series came out.  
Krell anticipator circuits of the 1990s
How would you compare it to another amp, unless it has the same exact circuit design one with the anticipator circuit and one without.  
Krell anticipator circuits of the 1990s
I’m sure the circuit can keep up with any musical dynamics, you may have an argument on if it sounds better than straight up class A because of the added circuitry, but there is no way to compare it unless someone comes up with an amp with a switc...