Switching and linear power supplies in hi-fi

David Berning has used high-speed switching power supplies in his products since the late 1970's.

Andy2 - I think the majority of digital front end equipment
use SMPS units, but most analog devises are still running
on linears.

With good design and quality parts, SMPS units can perform
very well. Their lower cost, weight and lower power consumption makes them very attractive.

Most use linear regulators but in the next two years that might be changing due to additional EU import restrictions. The EU will be requiring 'zero phase angle' power supplies in all electronics imported to the EU. Switching power supplies are the only thing that can do that. My guess is that temporarily, at least, it will mean a degradation in sound.

Obviously the restriction is political- untilities have been dealing with power factor/phase angle issues for 80 years and now all of a sudden this is an issue?? Politics.