The Cyrus Stereo 200 Signature Power Amplifier is an expertly-designed product, featuring zero feedback technology.

The culmination of two years’ engineering by the Cyrus R&D department, as they researched and solved limitations that have held Class D amplifiers back from providing true hi-fi performance. The Stereo 200 is such an achievement that a description of the engineering behind this Class D Amplifier will be published in a White Paper that describes the unique work Cyrus undertook in developing Class D to sound good enough for an amplifier carrying the Cyrus logo.

Stereo 200 is a high performance power amplifier incorporating a new and unique Cyrus topology that combines the benefits of high efficiency and lower heat generation from a digital output stage, with our highly refined analogue power supply design.

Delivering a herculean 2 x 200 watts into 6 O from the single ½ width Cyrus die-cast aluminium chassis, this amplifier is intended to fit in the range between the X-Power and the Mono X 200 Signature.

A new 200 watts per channel stereo power amplifier using a unique hybrid design, this high quality power amp provides immense power from a very compact chassis. An ideal match with Stream XP or Pre DAC models.

Cyrus’ Stereo 200 power amplifier is the first hybrid power amplifier to be launched from this new platform. By "hybrid" we mean it incorporates a traditional Cyrus power supply design with a low noise toroidal transformer, married with a new, high power, class D output device. This combination provides enormous continuous power and superb dynamics.

Cyrus Aluminium Die-cast Chassis

It is well understood that audio circuitry is adversely affected by external influences on the components. The two major causes of degradation are:

1) Microphony

The negative physical impact of vibration on an electrical component. This can be microphonic and caused by the environment or just the music playing in the room transferring energy into a poorly made lightweight chassis, and thereby into the capacitors and other susceptible components. Unlike valves where taping the glass component was directly audible, microphonic influence on solid state electronics has an effect more like blurring the sound. The Cyrus chassis is inverted allowing Cyrus to ‘hang’ the transformer inside the chassis helping to improve further the inherent ‘deadness’ of the cast chassis.

2) Electromechanical

Electrical components will inductively couples their electromechanical field effects into the ferrous steels used in all low cost chassis. The chassis will then inductively influence all the other components in the chassis. Cyrus’ choice of aluminium for our custom die-cast chassis means our circuits are unaffected by inductive loops and therefore the high performance, close tolerance components we specify perform optimally in a quieter environment.

The pressure die-cast aluminium chassis is sometimes mistaken as a marketing issue. In fact our investment in an expensive tool to die-cast this non-ferrous, low resonance enclosure was made to provide the perfect mechanical enclosure, enabling consumers to hear and appreciate the audiophile grade close tolerance components we use.

Low Power Standby

Despite the high power specification of Stereo 200, the amplifier consumes less than 0.5 watt, power consumption, in standby state