Cyrus Mono X300 Signature mono power amplifier


Cyrus Mono X300 Signature mono power amplifier

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Cyrus has a prestigious history of high-fidelity amplifier design. For more than 30 years they have crafted some of the world’s finest audio components. The finest of them all is the Mono X 300. Engineered from scratch using their in-house developed Zero Feedback technology, the Mono X carries both prodigious power and exceptional control. Capable of driving the world’s most demanding speakers, the Mono X is the crown prince of power amplifiers.

Cyrus' best power amplifier, the Mono X 300 Signature can provide an enormous 319 Watts of power to your speakers (through 6 Ohms). Their Zero Feedback technology means that the sound coming out of the amp is exactly the same as the one going in – just bigger. The amplification processes inside this handcrafted Cyrus chassis have been expertly engineered with complex circuitry making sure that the output is powerful and precise.

Mono X 300 Signature contains a 305VA ultra-low noise transformer and through their expertly engineered circuitry Cyrus ensure that nothing is added to the signal as it passes through the amplifier. As music volumes drop, it becomes increasingly important that the only sound being issued from a hi-fi system is the music itself. Cyrus' Zero Feedback technology means that in tests, their best power amplifier produces negligible distortion at low volume.

To maintain the precise sound quality Cyrus is known for, but ensure adequate ventilation of their power amps, Cyrus have developed a smart cooling system for the Mono X 300 Signature. This system only activates the fan when it’s needed – when you’re listening at high volumes. When the volume drops or silences are detected, the fan automatically switches off so there’s never any unwanted background noise.



  • BFA speaker – Yes
  • Chain output – Yes
  • MC-BUS – Yes


  • Analogue RCA Phono – 1
  • XLR Balanced – 1
  • Trigger RS-232 -1

power output

  • Watts into 6 Ohms – 319

dimensions (mm)

  • Height – 73
  • Width – 215
  • Depth – 360
  • Weight (kg) – 6.4

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