Cyrus Stereo 200

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Stunning Stereo Power Amp from Cyrus


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Product Description

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 Cyrus’ highly refined analogue power supply design. Delivering a herculean 2 x 200 watts into 6 Ω 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’ new 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.

Balanced and unbalanced inputs

The unit offers fully balanced XLR inputs that offer the best noise immunity when connecting to a unit with a balanced output. Standard RCA type connectors are also available for preamps that only have unbalanced outputs.

Standard 4mm binding posts

The unit has gold binding post connectors suitable for bare wires, spade terminals or 4mm post connectors.

High power from size

Using the Cyrus Class D hybrid technology we are able to produce a high powered stereo amplifier in a small box without any cooling issues or compromises in the audio quality. This high efficiency design ensures nearly all the power supplies energy is used for the amplifier output rather than wasted as heat. Using this technology (even with the large power outputs) there is no need for cooling fans in the box. Efficiency and damping factor are further improved by the unit harvesting the energy used to stop the speaker cone moving and placing it back into its power supply reservoir.

Chain output

The RCA input is also available as an unbalanced RCA output for connection to another power amplifier. The XLR input is changed from balanced to unbalanced and when selected is also available on the chain output RCA connectors.

12V trigger

The amplifier can be switched off and on from any device emitting a 12V trigger output. The input is on a 3.5mm jack socket.

SID (Speaker impedance Detection)

Each time the amplifier is powered up, the SID (Loudspeaker Impedance Detection System) interrogates the speaker load and adjusts the amplifier to provide correctly balanced and smooth high frequencies. This has proved to be a highly successful method of accurately aligning the class D output devices. When the unit is mains cycled an assessment is made of the loudspeaker load at high frequencies. There is an adjustment made to the frequency response of the amplifier output to correct for differences when driving different load impedances.

Music sense

From full standby the unit can be made to switch on with any signal input above -55dB. After being on if there is no signal above -55dB into the unit for 10 minutes the unit will go back into standby.

Reconstruction filter

The class D output filter uses a ferrite shielded coil with oxygen free copper and polypropylene metal foil capacitors in order to achieve the best possible distortion figures, damping factor and sonic performance. This section is a key fine-tuning point for the sonic signature of the amplifier.

Fault monitoring

The unit constantly monitors the circuit for errors in supply voltages, DC offset from the speaker outputs and also

Low Power Standby

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

Full RS232 control provided to allow a suite of Stereo 200 to be connected together.

As with all of our products, the Stereo 200 can be connected to our other systems via our unique MC-BUS connectivity.

Inputs – RCA phono or XLR balanced, 12V trigger

Outputs – 4mm/spade/bare wire loudspeaker terminals, RCA chain out

Power supply – 475VA Toroidal transformer

Output power (continuous @ 0.1% THD+N) 8 ohms – 175 Watts, 4 ohms – 325 Watts

Dimensions (H x W x D) – 73 x 215 x 360 mm

Weight – 6.9kg