Power Amplifier Ypsilon Electronics AELIUS II Black

The Ypsilon Aelius II is a reference push-pull hybrid monoblock power amplifier engineered to deliver massive dynamic output, speaker control, and pure musical involvement. Its minimalist hybrid topology features only two gain stages with zero global feedback: a single-ended Class A vacuum tube input stage coupled directly to the output stage via a custom wide-bandwidth (10 Hz – 75 kHz) interstage transformer. The inclusion of a bespoke input transformer enables a fully balanced XLR signal path without adding active components. Its unique output stage utilizes same-polarity N-channel MOSFET components operating in a bridge-balanced symmetrical topology, supported by high-current inductor-filtered power supplies to deliver effortless current drive, ultra-low noise floor, and complete signal purity.