Glory,
I'm interested in your impressions as well.
I owned a RW Sig 30. It is an excellent, excellent amp - the closest thing to SET I'd found. But I found it a bit dark and closed-in; not as holographic nor as harmonically correct as good SET amps.
I am very surprised your AN amp hums - NOT the norm.
It's entirely possible to built a dead-silent amp with an AC power supply too. There are solid state and tube amps that have a better S/N ratio than the RW product. Batteries are a good idea but not a panacea.
I'm interested in your impressions as well.
I owned a RW Sig 30. It is an excellent, excellent amp - the closest thing to SET I'd found. But I found it a bit dark and closed-in; not as holographic nor as harmonically correct as good SET amps.
I am very surprised your AN amp hums - NOT the norm.
It's entirely possible to built a dead-silent amp with an AC power supply too. There are solid state and tube amps that have a better S/N ratio than the RW product. Batteries are a good idea but not a panacea.