Sophia Electric 300B Single Ended Power Transformers

Power supply does have a major impact on the amplifier sonic performance. Sophia Electric is offering power transformers and chokes for DIY and commercial production communities.
Sophia Electric 300B single ended power transformer:
Option 1: $399.99 for one unit stereo amplifier power transformer
Option 2: $599.99 for two matched units mono-block amplifier power transformers