Mono X 300 Signature


Our best power amplifier, the Mono X 300 Signature can provide an enormous 319 Watts of power to your speakers (through 6 Ohms). Our Zero Feedback technology means that the sound coming out of the amp is exactly the same as the one going in – just bigger.


Zero Feedback Topology


Cyrus’s latest generation Zero Feedback Power amplifier brings inherently natural and high resolution musical reproduction. By removing the traditional amplifier ‘global feedback’ loop, sonic improvements are made and our signature sound quality is produced.




The high current design of the Mono X 300 Signature effortlessly drives even the toughest loudspeaker loads. A 305VA toroidal transformer can provide a huge 319 Watts into 6 ohms which not only produce powerful sound but remains stable throughout.




Balanced or unbalanced connectivity offer all the connectivity requirements to match up with Cyrus pre amplifiers. High quality bi-wire terminals are provided to allow ideal connectivity to high performance loudspeakers.




12v trigger and RS232 control are provided as standard along with an intelligent signal sense power mode which allows the Mono X 300 Signature to be installed in a variety of setups.


Advanced Thermal Management


Having so much power inside our die-cast aluminium chassis is not a problem thanks to a twin fan design which has a proprietary signal sensing circuit that run the fans in line with the music level; meaning they will never intrude even on the quietest passages of music.

Cyrus Mono X 300 Signature (Pair)

  • Outputs
    BFA speaker Yes
    Chain output Yes
    MC-BUS Yes
    Analogue RCA Phono 1
    XLR Balanced 1
    Trigger RS-232
    Power Output 
    Watts into 6 Ohms 319
    Dimensions (mm)
    Height 73
    Width 215
    Depth 360
    Weight (kg) 6.4
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