Cyrus Power-XR and Classic POWER: Compact power amplifiers from Britain

The British company Cyrus Audio has released new stereo power amplifiers in the XR and Classic lines. The new products are named Cyrus Power – XR and Cyrus Classic POWER , respectively. These are transistor amplifiers made in a proprietary compact form factor. However, the amplifier output stages operate in class A/B.

According to the manufacturer, the new Cyrus Power-XR and Classic POWER have lower noise levels than previously produced models. At the same time, the output stages are capable of delivering high current to the load, which allows them to successfully cope with acoustic models that are difficult for amplifiers.

The Cyrus Power-XR wideband power amplifier delivers 110 watts when driven into a 6-ohm load in each of its two channels. At the same time, the operating range of the new product extends almost from constant voltage to a frequency exceeding 100 kHz. The amplifier is equipped with both unbalanced and balanced inputs, a 12 V trigger input, a proprietary MC-BUS control bus and a connector for connecting an optional external power supply Cyrus PSU-XR. There is also a USB port for updating the firmware.

Technical characteristics of the Cyrus Power-XR stereo power amplifier:

• Output Power: 2 x 144 W (2 x 161 W with PSU-XR) 4 ohms / 2 x 110 W (2 x 121 W with PSU-XR) 6 ohms / 2 x 87 W (2 x 95 W with PSU-XR ) 8 Ohm
• THD:  <0.002% (1 kHz, 6 ohms, 2/3 maximum power)
• Input Sensitivity: 450mV RCA / 900mV XLR (110W/6ohm)
• Input impedance: 28 kOhm
• Frequency response: <0.5 Hz – > 100 kHz (-3 dB)
• Signal-to-noise ratio: >100 dB
• Dimensions (W x H x D): 215 x 75 x 355 mm
• Weight: 7.3 kg

The operating range of the Cyrus C las sic POWER power amplifier extends from almost constant voltage to frequencies above 50 kHz. The new product is equipped with both unbalanced (RCA) and balanced (XLR) inputs, a 12 V trigger input, a proprietary MC-BUS control bus connector, a connector for connecting an optional external Cyrus PSX-R2 power supply and a USB port for firmware updates.

Technical characteristics of the Cyrus Classic POWER stereo power amplifier:

• Output power: 2 x 144 W 4 ohm / 2 x 110 W 6 ohm / 2 x 87 W 8 ohm
• THD: <0.002% (1 kHz, 6 ohms, 2/3 maximum power)
• Input Sensitivity: 450mV RCA / 900mV XLR (110W/6ohm)
• Input impedance: 28 kOhm
• Frequency response: <0.5 Hz – > 48 kHz (-3 dB)
• Signal-to-noise ratio: >100 dB
• Dimensions (W x H x D): 215 x 75 x 355 mm
• Weight: 7.3 kg

The Cyrus Power-XR and Classic POWER stereo power amplifiers are now available for pre-order. In the UK, delivery of the new products is expected in early December with recommended retail prices of £2,995 for the Power-XR model and £2,395 for the Classic POWER