Cyrus Mono X 300 Signature Features:
- Audiophile quality power amp with huge power and capacity
- Outputs over 300 Watts with outstanding control and dynamics
- Zero Feedback circuit design eliminates unnecessary circuit paths for wide open imaging and pitch black background noise
- Totally separated power rails for the final stage, VAS, input stage and control systems
- Separate transformer windings and regulated rails for the voltage amplifier stage: Extremelly clean and stable voltage
gain stage with no trace of ripple
and noise
- Short signal path: Reduced crosstalk and extremely low distortion, preserving signal purity
- No output relay: Purist design and clean signal path, no sonic
degradation
- Soft-start system: No turn-on thump
- Mono X 300 Signature willl partner perfectly with the DAC XP Signature preamplifier
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| CYRUS Zero Feedback |
Product Overview
The Mono X 300 Signature incorporates a huge amount of power to provide great amplification, with our Zero Feedback technology.
Inside, the amplification processes have been expertly engineered to produce zero feedback, with complex circuitry making sure that the output is powerful and precise.
Despite the much higher cost of production, we pursue Zero Feedback technology because it brings some very special attractive sonic benefits. The amplification processes have been expertly engineered to produce Zero Feedback, with complex circuitry making sure that the output is powerful and precise. Two interesting benefits of Zero Feedback technology are:
- The design allows the key stages in our amplifier to work independently without the hindrance of global feedback. In a traditional amplifier the corrective actions necessary in the output stage to drive a loudspeaker are fed through the entire amplifier, disturbing unnecessarily the input and voltage amplifier stages. To put this another way, it allows the first stage of the amplifier to operate without the unwelcome influence of the latter, separate voltage and current stages. Zero Feedback amplifiers are only possible when one understands how to prevent distortion in the first place. They require very advanced circuit topology and close tolerance components.
- Cyrus Zero Feedback amplifiers are able to create an uncanny sonic blackness onto which we paint our musical image. They can achieve this because as the output level reduces to lower levels, where the ear becomes most sensitive to these effects, the distortion produced by the Mono X 300 Signature falls below measurable limits. The result is an exceptional musical performance.
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| DAC XP Signature and Mono X 300 Signature |
Technical Information
Specifications
Power output: 319W (into 6 Ohms)
Burst Peak Power: >2000W
THD+N @ 2/3 full power: <0.004%, (1kHz into 8 Ohms), <0.05% (20Hz - 20kHz into 8 Ohms)
Frequency Response: 0.5Hz – 300Khz (-3dB)
Slew rate: 700V/S (input filter bypassed)
Sensitivity for 50W into 8 Ohms: 381mV (RCA input), 775mV (BAL input)
Sensitivity for 225W into 8 Ohms: 890mV (RCA input), 1.78V (BAL input)
Input impedance: 47kΩ (RCA), 20kΩ (BAL)
Chain Output: 890mV (for 890mV RCA or 1.78V BAL input)
S/N ratio: 116dBA
Dimensions (H x W x D): 73 x 215 x 360 mm
Finish: Brushed black, Quartz silver
Weight: 7.4kg
Inputs:
XLR balanced*
RCA phono*
*The front panel INPUT key selects RCA Phono or Balanced input connection
Outputs:
Bi-wire loudspeaker terminals (BFA plugs supplied)
RCA Chain Out (buffered, unity gain)
Construction
Enclosure: Cyrus Inverted die-cast chassis
Material: Lightweight non-magnetic alloy
Power Consumption:
Standby: < 1W
ON, no signal: 23W
Maximum: 750W
Communications:
MC-BusTM System Bus
RS232
12V Trigger |
