Hiraga “Le Monstre” 8W A class Amplifier D.I.Y.
The procedure for seeting like 1 A current in output, can take some time.
For 8 Ohm speakers, this would be my initial current setting.
When you have 1 Volt DC across both 1 Ohm resistors, you will have 1 Ampere running.
What factors effects (most) how much current/voltage across 1 Ohm resistors?
1. What JFETs you use.
And different exemplars of same 2SK170 /SJ74 can differ.
2. The potentiometer.
50 OHM or (47) pot = most current,
100 Ohm pot = normal
220 Ohm = less current.
3. Value of 1 k Ohm’s resistors.
Higher value = more ampere in output.
Lower value less current.