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 Centaur Mono


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Constellation Audio


Inputs: 1 Constellation Direct XLR, 1 standard balanced XLR, 1 unbalanced RCA Outputs : dual metal binding posts

Power output, 8Ω (1 kHz @ 1% THD+N)   500 watts

Power output, 4Ω (1 kHz @ 1% THD+N)   800 watts

Power output, 2Ω (1 kHz @ 1% THD+N)   1000 watts

Frequency response   10 Hz to 100 kHz +1/-0.5 dB Gain : 14 dB Constellation Direct, 26 dB Balanced & RCA THD+N (1 kHz @ up to 90% of rated power)   <0.05%

Output impedance   0.1Ω Damping factor (8Ω load)   80

Input impedance : 200KΩ Constellation Direct, 200KΩ XLR balanced, 100KΩ RCA unbalanced

Output noise   <70 µV, 500 kHz BW, -116 dB @ 250 watts

Weight   103 lbs/46.7 kg

Dimensions (hwd)   11.00 x 17.00 x 20.00 in 280 x 432 x 508 mm




Each Centaur Mono delivers 500 watts per channel continuous power into 8 ohms. This is sufficient to drive any speaker ever made to maximum performance with power left to spare. When you own the Centaur Mono, there can be no doubt that your amplifier is delivering all the dynamics in whatever music you choose to play. Such extraordinary power also essentially eliminates concerns about amplifier distortion.Only Constellation Audio's “dream team” of engineers and designers could have come up with the radical modular design of the Centaur Mono.


500 watts per channel into 8 ohms: The Centaur Mono owner need never worry about power, no matter what speakers are used. The power output is sufficient to drive any speaker, of any impedance or sensitivity, with enough headroom to practically eliminate the possibility of audible distortion from the amplifier.

Unique modular design: The Centaur Mono gets its power not from bulking up a smaller design as most big amplifiers do, but by combining multiple 125-watt modules. Thus, it delivers the musicality of a small amp with no concerns about dynamics or distortion.

Exclusive balanced bridged circuit design: By using only N-type output transistors, instead of half N-type and half P-type as almost all other amplifiers do, the Centaur Mono achieves practically perfect balance between the positive- and negative-going halves of the audio signal.

Fully discrete circuitry: To assure maximum performance, we use no ICs in the Centaur Mono's audio circuits, only discrete transistors.

Custom-wound toroidal transformer: The Centaur Mono's more-than-ample power supply assures lifelike dynamics. The core of the supply is a custom-wound, 1,600-watt toroidal power transformer, which allows the amp to deliver exceptional headroom while minimizing production of stray magnetic fields.

Stable design with no output filters: Because we designed the Centaur Mono's output to be inherently stable, the amp does not require a Zobel filter network at its output as many high-powered amps do.

Maximum ventilation for maximum reliability: The Centaur Mono's extreme output capability demands careful thermal control, which we achieve through extra-large heat sinks and hundreds of large ventilation ports.

Line Stage Gain Module: The Centaur Mono's input stage employs the same Line Stage Gain Module circuit used throughout our line. This fully complementary topology uses servo circuits and hand-selected, ultra-low-noise FETs to assure that all incoming signals are perfectly balanced. This is important when preamps of other brands are used.

Constellation Direct balanced interface: The Constellation Direct interface bypasses the Centaur Mono's input stage, thus reducing the number of gain stages in the system and achieving superior sound quality. It is designed for use only with our Altair and Virgo preamps, which output a perfectly balanced signal because they use our Line Stage Gain Module.