Even better, this performance comes from a (relatively) compact design – well, at least by comparison with some more obviously massive super-amplifiers. And while the Centaur II Stereo is very much the junior model in the range, the prodigious power PM notes in his Lab Report means it will deliver all that most users will ever need. Indeed, it's likely your speakers will give up the fight long before this amplifier runs out of ability to drive loud and clean. It's something the HFN team has experienced at length while using other Centaur amplifiers in PM's listening room, where they're employed as a reference fed from a dCS Vivaldi One APEX player/DAC, which also acts as the system preamp.Īs those Constellation Audio models have proved over time, they fully live up to the instruction manual's claim that 'the Centaur II produces sufficient voltage and current to drive practically any loudspeaker made, regardless of the speaker's impedance, sensitivity or power rating'. Tap the bar and the amp mutes, with a flashing blue tell-tale, while another three-second press will shut it down into standby, after a minute or so of flashing orange in cool-down mode.Īnd that's about it: there's nothing tweaky or fiddly about the Centaur II, but rather an innate feeling of fuss-free operation and just getting on with the job at hand. Press and hold this fascia bar for around three seconds and the LED will flash green for a minute or so while the amp warms up, then turn a solid blue. With all the connections in place, firing up the Centaur II Stereo is a matter of flipping the master power switch at the rear, at which point an orange LED will show on the front-panel control bar.