Ypsilon AELIUS II

Description

Aelius II is a push-pull hybrid mono block power amplifier (pair) using only two gain stages with no overall feedback. It has been designed to provide power to drive real world speakers with unmatched transparency and musical involvement.

The first gain stage is implemented with a valve, operated in single-ended class A and transformer coupled to the output stage. The use of a transformer negates the need for an additional gain stage, so the transparency and purity of the signal is preserved. For this purpose, a wide bandwidth (10-75 KHz) transformer was developed using extensive listening tests and measurements. The bandwidth of the transformer also defines that of the amplifier.

The Aelius II also features a recently developed special input transformer which extends the purity of the signal path even further. It also gives the opportunity of a balanced input in the amplifier, thus giving the user the versatility of using longer interconnect cables if required.

The output stage uses components of the same polarity (N-channel), working in the same topology. The output of the amplifier is symmetrical so both output connectors (+, -), carry the signal in the opposite phase. Great attention was also paid to the design of the power supply, which uses high current inductors for smooth and quiet filtering.

The Aelius II is most certainly a revolutionary product having a unique set of features, refinement and transparency with real-world power and control over the speaker.

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