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Gryphon Colosseum Stereo Amplifier - Consignment
Condition: Used. Good, some minor marks and scratches (See photos)
Includes: Original Shipping Crate, Power Cable
SN: 1712012
Made in Denmark
Includes 7 day warranty
Overview
The Gryphon Colosseum Stereo Power Amplifier is a statement piece in every sense, delivering 160 watts into 8 ohms per channel of class A power in a true dual-mono configuration. Designed by Flemming E. Rasmussen and built in Denmark, the Colosseum embodies Gryphon’s “no compromise” philosophy.
Colosseum features zero global negative feedback, 48 high-current bipolar output transistors, and a massive 340,000 µF capacitor bank, ensuring effortless dynamics. Balanced circuitry throughout, separate power supplies for analogue and digital sections, DC servo coupling, and premium internal silver wiring all contribute to its jet black background and holographic realism, while proprietary Green Bias technology allows intelligent bias management without sacrificing it's Class A sound.
Colosseum is also a serious design statement, its slim tower form occupies minimal floor space, with meticulously crafted curved side panels and well finished heat sinks.
Specification
Power Output (Pure Class A): 2 x 160 Watts (8 Ohm), 2 x 320 Watts (4 Ohm), 2 x 640 Watts (2 Ohm)
Circuitry: Dual Mono, Zero Global Negative Feedback, Fully Balanced
Capacitance: 340,000 \(\mu \)F bank
Output Devices: 48 High-current bipolar transistors
Input Impedance: 10 kOhm (Balanced)
Bandwidth (-3dB): 0 – 350 kHz
Transformer: Two separate 2000VA Holmgren toroidal transformers
Cooling/Bias: Selectable Auto/Manual Green Bias (Low/Mid/High)
Inputs: 1 x Gold-plated Neutric XLR per channel
Weight: 80 kg
Dimensions: Approx. 76 x 27 x 63 cm
AUDIO CONNECTION QUALITY GUARANTEE
✔️ Seven day warranty on Consignment*
✔️Passed our checks for functionality
✔️A full inspection noting for any defects
✔️A full completeness check for all included parts and accessories
The Gryphon Colosseum sits high in the Danish marque's powerhouse lineup, a beastly stereo amp delivering 150Wpc into 8 ohms with effortless Class A grip and that signature Gryphon transparency—ultra-rare on the used market.
At AUD 25,500, this asking price looks ambitious against our database of 17 recent comparable Gryphon listings, where the median sits at AUD 13,161 (25th percentile AUD 9,045, 75th percentile AUD 14,787); it's well above even strong examples, so negotiate hard or walk unless pristine provenance justifies it. Before biting, verify the output transistors and power supply caps—common wear points on these heat monsters after 10+ years—and insist on original boxes, manual, and service history to dodge hidden resto costs.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Gryphon Audio Designs emerged from Denmark in 1985, founded by Flemming E. Rasmussen as a passionate offshoot of his distribution company, 2R Marketing. What began as a spare-time project—a compact, dual-mono phono preamplifier known as the Gryphon Head Amp—quickly gained acclaim after debuting at the 1986 Chicago Consumer Electronics Show. Japanese distributors snapped it up, and the audio press hailed it as a "Best Buy," propelling Rasmussen to establish Gryphon as a dedicated entity by the early 1990s, free from import distractions. The brand's name draws from the mythical gryphon, symbolizing the fusion of lion-like power and eagle-like grace in music reproduction.
Gryphon specializes in uncompromising high-end electronics, starting with its legendary class-A phono stages and evolving into high-power amplifiers, preamplifiers, and integrated systems. The company expanded into full-system solutions with the 2002 Cantata stand-mount speakers, followed by flagship models like the massive Poseidon in 2004. Today, its portfolio encompasses speakers, the groundbreaking Apollo turntable—a collaboration with Helmut Brinkmann and Ortofon—and even cables, ensuring every link in the audio chain aligns with Gryphon's neutral, optimized design philosophy.
Positioned firmly at the pinnacle of high-end audio, Gryphon commands respect among discerning audiophiles for its visionary engineering and sonic purity, often setting benchmarks since its inception as one of Europe's earliest true high-end pioneers. Rasmussen's team-driven approach yields products that prioritize musical essence over compromise, attracting buyers who demand reference-level performance in home systems.
See all Gryphon listings on RADAR.
