I respectfully disagree. First off: Your 2 to 1 is a calculated measurement, measured will be different, and SET amps are never used without a load..that is if you want them to remain operating. 2nd: if you lower resistance at the networks with lower heavier ga inductors, you have increased the DF. Although it may not be called DF...improving the power supply has everything thing to do with controlling the bass. Your large 28 pound transformers are geared to better bass control, however; the caveat is that it will limit HF response. Large tranformers are large inductors coils. LF likes low resistance/high inductance coils, HF favors low capacitance/ low inductance. Heavier Ga wire works best at LF, and low crossover point. Much easier to accomplish with a 3 way than 2 way.
Not a problem,
My output irons primary impedance was measured by myself. I did come up with a 5K primary.
The specs for the 811-10 are published secs which are 2.5K of plate resistance. But I'm not concern if its more or less. A little irrelevant based on its sound.
So 2 to 1 is a pretty common for a SET amp, my 572-10 does a little better at 2.5 to 1 with it 2k of plate resistance
Inductance is inductance and the ACR of it is specific for a given value in henries both the stock and my 8AWG are 3mh. The DCR is another story though, even though mine are 8AWG there is a lot more wire in an air core vs an iron core for the same value of inductance and chances are the stock Klipsch iron cores are probaly pretty close in the DCR of my air cores because of there size.
Yes I can see your point about an increased damping factor with music going, its kind of frequency dependent and dependent on the loads impedance reflected back to the primary of the output transformer, the stock networks no where near a constant impeadance and nor are my modified. But an ALK network would be!
As to amplifier stability without a load there are some PP amps designed with what is called a tweeter protector, its meant to keep the amp stable under no load, such an amp designed with one is the famous Heath Kit W5M, the problem is with PP amps there is so much gain, and gain used as feedback that the PP amp gets huge gain with no load on its secondaries, then all that gain is turned into feedback causing the amp to possibly arc over the outputs insulation internally or even arc over the output tubes screens.
In a SET amp the issue is almost mute because there is no global feedback. I think the real issue though is when music is playing for both PP or SET amps, still I don't run my amps with no loads.
In general I would agree with you that large outputs are more likely not to sound as good as smaller ones, but thats not written in stone. transformers are wound in many different ways, even using various gauge wire even helping to preserve HF response.
Recently jdg123 was here with his 5K primary James iron that was beautifully made. The 28lb Hammonds dwarfed the James, the James sounded very good with as large of a stage as my Hammonds, the bass was good from the James as well. But I think the interesting thing was how I couln't tell the two apart subjectively tonally (Harmonics) in the mids. though the foundation of the Hammonds all the way up to the lower mids was very captivating.
The Hammonds were so impressive to jdg123 that he is planning to own a pair of the Hammond 1642SE's when he can afford to to use with his 45 amp project, sounds crazy I know but then again so is the sound.
It was a month ago I wrote my last post post on the thread here and I have learned a lot about what I call cutting edge power supply design, parts arrived this past weekend and I hope to have them in soon. I will be posting more on my supply concepts that I use in my thread "power supplies, a Different Approach" when I am able to install my parts. My supplies are not classical designs, but are faster, and more transparent as well as having dynamic impact. As jdg123 would describe the sound "sheer grip"
As to power supply sound, yes a power supply has everything to do with good bass control, but unfortunately it doesn't replace a speakers inductors.
How do I know this? I have a stock pair of Fortes here.
The difference isn't anything subtle, just ask DaveC his level of satisfaction when he modified his RF25's with 10AWG North Creek inductors and Mundorf caps after hearing my system. He now has as much money I think in his modified networks as the speakers cost him new.
And yes, my Fortes are 3-ways which I prefer.
SET12