Cyrus Mono X300 Signature

    Tax included. Shipping calculated at checkout.

    Cyrus has a prestigious history of high-fidelity amplifier design. For more than 30 years we have crafted some of the world’s finest audio components.

    The finest of them all is the Mono X 300. Engineered from scratch using our 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.



    The Mono X 300 Signature incorporates a huge amount of power to provide great amplification, with the Zero Feedback technology. This means that the sound coming out of the amp is exactly the same as the one going in – just bigger!

    Inside, the amplification processes have been expertly engineered to produce zero feedback, with complex circuitry making sure that the output is powerful and precise.

    The Mono X 300 contains a 305VA ultra-low noise transformer and an expertly engineered circuit which makes sore 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. The Zero Feedback technology means that in tests, the Mono X 300 produces negligible distortion at low volume.

    To maintain the precise sound quality Cyrus is known for, but ensure adequate ventilation of our power amps, we’ve 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 volume. When the volume drops or silences are detected, the fan automatically switches off so there’s never any unwanted background noise.

    Full RS232 control provided to allow a suite of Mono X 300 Signatures to be connected.


    As with all of our products, the Mono X 300 Signature can be connected to our other systems via our unique MC-Bus connectivity.


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

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

    Watts into 6 Ohms – 319

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