Achieving a perfect balance between the two halves of an audio signal is possible only when the incoming signal is itself perfectly balanced. This is why the Inspiration STEREO 1.0 uses the same Line Stage Gain Module circuit found in all Constellation Audio products. The Line Stage Gain Module’s servo circuits assure that both halves of an incoming signal are perfectly balanced, no matter what the source.But if the source is a Constellation Audio preamp — which of course has its own Line Stage Gain Module — then so much the better. Because you can then use the Constellation Direct balanced input, which bypasses the Inspiration STEREO 1.0’s input stage for the best possible fidelity.
With power output conservatively rated at 0.2% total harmonic distortion plus noise, doubling to 400 watts into 4 ohms, the Inspiration STEREO 1.0 has enough power to drive practically any speaker to maximum volume without audible distortion.
The Inspiration STEREO 1.0 uses a modular, fully balanced design with only N-type output transistors, instead of half N-type and half P-type as found in almost all other solid-state amplifiers. Thus, the positive and negative halves of the audio signal are maintained in ideal balance and the subtlest of musical details are preserved.
Incoming signals are treated to our Line Stage Gain Module circuitry, which uses servo circuits to achieve essentially perfect balance between the positive and negative haves of the audio signal. If a Constellation Audio preamplifier is used, this input stage may be bypassed through use of the Inspiration STEREO 1.0’s Constellation Direct balanced input.
As with our other amplifiers, we use only discrete components in the Inspiration STEREO 1.0’s audio circuits.
A large, custom-wound toroidal transformer feeds a bank of 24 capacitors rated at 10,000 microfarads each, assuring that the Inspiration STEREO 1.0’s output stages have more than enough current to deliver their rated power with ease — and enough dynamic output to achieve concert-sound levels, if your speakers are up to it.
The inherent stability of our Balanced Bridged design allows us to dispense with the Zobel output filter network many amplifiers require to maintain reliable operation.
by placing the transformer at the front of the Inspiration STEREO 1.0 and moving the output stages to the rear, we ensure the shortest possible signal path and very low output impedance.
To minimize interaction of the transformer’s electromagnetic fields with the audio circuits, we place the transformer in its own enclosure and shield it with thick aluminum plates. A special shielded channel carries the AC voltage from the power input to the power supply enclosure.
The Absolute Sound granted a number of our components with their Editors Choice Award 2020, including:
Altair II. Argo. Centaur II, Hercules II/Hercules II Stereo, Inspiration 1.0, Inspiration Mono 1.0, Inspiration Preamp 1.0, Inspiration Stereo 1.0, Perseus, Andromeda, Pictor, Taurus Stereo, and Taurus Mono Amplifier.
Constellation Audio won multiple awards this year in The Absolute Sounds Editors’ Choice Awards 2021.
Constellation Audio won multiple awards this year in The Absolute Sounds Editors’ Choice Awards 2022.
Virgo II, Perseus, Centaur Stereo & Mono and the Inspiration Series STEREO 1.0, MONO 1.0 and PREAMP 1.0 have been awarded the Absolute Sound 2015 Editor’s Choice award.
Inspiration STEREO 1.0, Inspiration MONO 1.0, Inspiration PREAMP 1.0, Centaur Stereo, Argo, Perseus, Virgo III, Altair II, Hercules II Mono have been awarded the Absolute Sound 2015 Editor’s Choice award.
Editors Choice Awards from Issue #271 of TAS
Constellation Audio’s Centaur II 500 Stereo Amp and Inspiration Stereo Amp were named Stereophile’s Recommended Components 2020 in their April 2020 edition.
Constellation Audio’s Centaur II 500 Stereo Amp and Inspiration Stereo Amp were named Stereophile’s Recommended Components in their Oct 2020 edition.
Constellation Audio’s Centaur II 500 Stereo and Inspiration Stereo Amp were named in Stereophile’s Class A Recommended Components list in their April 2021 edition.
Constellation Audio received a number of Editors’ Choice Awards for 2019 from The Absolute Sound.
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