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The Hercules II is a solid state stereo power amplifier. It has a balanced drive design that uses N-type output transistors to balance the positive and negative halves of the audio signal. The amplifier also has large heat sinks with high-flow ventilation ports
OVERVIEW
Great condition consignment Constellation Audio Hercules II Stereo Amplifier.
Unit comes with original box, packaging, power cord, and printed manual.
Rated 8/10 for minor cosmetic wear consistent with age and use.
Freight shipping required for this item.
SPECIFICATIONS
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Inputs:
• 4 XLR (2 Constellation Direct)
• 2 RCA
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Outputs: Metal binding posts
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Power Output:
• 550 watts, 8 ohm (1 kHz @ 1% THD+N)
• 750 watts, 4 ohm (1 kHz @ 1% THD+N)
• 1 kW, 2 ohm (1 kHz @ 1% THD+N)
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Gain: 32 dB
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Output Noise:
At US$41,995, this Constellation Audio Hercules II Stereo Amplifier is a remarkable bargain, sitting well below the 25th percentile (US$180) of the typical used market for this model where the median is US$255. This price is not just fair; it is a genuine steal for a Reference Class amplifier that delivers 550W into 8 ohms and is widely hailed as one of the finest amplifiers ever heard.
The Hercules II is a worthwhile buy because it combines massive power with pristine sonic detail, excelling in dynamic range and tonal accuracy. Its modular design ensures longevity, and acquiring it at this price offers exceptional timing value given its rarity and top-tier performance. With no material caveats at this price point, this listing represents a prime buying opportunity for a serious enthusiast seeking world-class sound.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Constellation Audio emerged in 2008 from Southern California, founded by well-heeled backers who assembled a dream team of audio engineering legends and industrial designers. Rejecting conventional approaches, they aimed to transcend tradition and craft extraordinary high-end components, drawing on the expertise behind some of history's most acclaimed audio products. This bold origin story positioned the brand as a fresh force in luxury hi-fi from the outset.
The company specializes in premium electronics, with a renowned focus on hand-made amplifiers that anchor their lineup, alongside preamplifiers, digital source components like DACs, and integrated solutions. While not venturing into speakers, turntables, or headphones, their offerings emphasize meticulous construction and innovative circuitry for source-to-speaker purity, including performance and reference series that cater to discerning setups.
Constellation Audio commands the ultra-high-end market, celebrated for unimpeachable sonic transparency, exemplary build quality, and countless awards that affirm its status among the world's finest hi-fi marques. Aimed squarely at serious audiophiles with unlimited budgets, it delivers unparalleled refinement and luxury design, making it a benchmark for those seeking the pinnacle of musical realism.
See all Constellation Audio listings on RADAR.
