Our design team created a real integrated amplifier you'll adore. Integration was the real challenge. Fitting all the parts into a relatively small chassis, which the SIA-025 shares with its siblings. We raised our technology to a new level of integration of parts. Plain and simple. The output stage is taken from the SM-10 monaural amplifier. By putting all our efforts into developing this true balanced integrated class A amplifier, we succeeded in making the new higher level of integration perform to the standards that any customer would expect from our Signature Series. Have you ever listened to one of our Signature Series products? You'll be thrilled! The SIA-025 adds more flexibility in terms of more inputs, the possibility of bi-amping should it be needed and a full bypass function for enabling compatibility with external surround processors. Together with our SCD-025, this amplifier will form a user friendly, cool looking system that delivers an incredible performance.