Can't stop looking at: F7

Don‘t get me wrong—I am totally fascinated by the minimalism of this amp, but I won‘t clone it. At least not as long as it’s still in production by firstwatt.
Thank you Nelson, for letting us know what it’s made of (since there doesn’t seem to be much more to it than 14 parts and your wizardry, it looks as simple as that—but…)
 
The inputs are Tosiba Jfets and outputs are Alfet laterals, all NOS.

Looks like F5 but with positive current feedback.
Mr. Nelson, are the alfet laterals lower distortion than mosfets in f5?
 

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If we look at the old Le Monstre amp it's a little bit like the F5 but with cascoded
Jfets and a sezuki pair ? for the output stage. But when it was being developed
Hiraga tried laterals for the output stage but didn't think it sounded good perhaps
he should have added some positive feedback. Oh I don't think it was called
" Le Monstre " because it was a small 8W amp but because of the power supply.
I think the power supply used a cap multiplier feeding a pair of 12V car battery's !
If someone was cloning the f7 instead of using the Alfet's why not just use the heat
sinks and outputs from an old Halfer DH220
 
I think the power supply used a cap multiplier feeding a pair of 12V car battery's !
No multipliers. Just banks of large electrolytics. Like 14 x 56.000 uF Mallory is what I had, and 1KW transformer. CL-RC, per channel. Don't have a picture anymore.
A cap multiplier reduces noise, yes, but also lags the power build up.
A good choke up front supplements any draw by setting its iron to work.
Nowadays you can get superduper FARADs (13V/ <.1ohm) from cars. The Supercapa's that were used at that time had an internal resistance in the ohms region; still that helped in the stage.