@markmendenhall Thanks for your feedback. Glad to hear that you like Halo JC-2 pre-amplifier which in my opinion is a great product at that price point. Just curious to find out how does Pass Labs 150.8, which is less powerful that Halo A-21, compare with Halo A-21.
Now coming back to pure Class A power it seems like you have to really spend a fortune to reach to the level of 150W or 250W and even then you might not get it because almost all Class-A amplifiers leave Class A domain beyond a threshold. So it is unclear to me why audiophiles spend so much on Pure Class A design instead of a Class A/B design. I know everything in audio is system/environment/user dependent but is there a thumb rule of X Watt of pure Class A which would be good enough for most of the users in a small/medium room under a regular listening environment?
Now coming back to pure Class A power it seems like you have to really spend a fortune to reach to the level of 150W or 250W and even then you might not get it because almost all Class-A amplifiers leave Class A domain beyond a threshold. So it is unclear to me why audiophiles spend so much on Pure Class A design instead of a Class A/B design. I know everything in audio is system/environment/user dependent but is there a thumb rule of X Watt of pure Class A which would be good enough for most of the users in a small/medium room under a regular listening environment?