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The Gryphon Colosseum

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True Class A operation has always been a Gryphon benchmark, because there is no substitute for the sheer musical magic of pure Class A. The Colosseum operates in true Class A mode with maximum power instantaneously available at all times, for unrivalled speed, control and accuracy. Once you experience the effortless realism and musicality of pure Class A, there is no turning back.

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Pure Class A 2 x 160 Watts (8 Ohm), 2 x 320 W (4 Ohm), continuous RMS
Pure Dual Mono configuration
340,000 µF capacitor bank
Zero global negative feedback
Gryphon Guideline silver internal wiring
Two separate Holmgren toroidal transformers with internal magnetic shielding
Separate power supplies for digital and analogue circuits
Gold-plated custom-built binding posts
Gold-plated Swiss Neutric XLR input sockets
Selectable automatic Green Bias setting or manual Low/Mid/High bias
Non-invasive protection system
Designed and built in Denmark

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As we approach our milestone 25th anniversary, Gryphon Audio Designs can look back with pride on nearly a quarter of a century spent re-defining the state of the art in music listening for the domestic environment. As the introduction of the breakthrough Colosseum Stereo Power Amplifier makes abundantly clear, Gryphon continues to define and refine the future of cutting edge home audio, selectively and critically incorporating emerging technological advances in the service of your listening pleasure.
Like every Gryphon product from the very beginning, the Gryphon Colosseum is designed by Gryphon founder and CEO, Flemming E. Rasmussen and manufactured in Denmark under his creative guidance.

Every Gryphon component reflects his training and experience as an artist and industrial designer, as his acclaimed aesthetic sensibilities imbues them with uniquely original form and functionality. At Gryphon, form follows function as innovative engineering gives rise to the perfect fusion of sublime musicality and daring, imaginative design for enhanced pride of ownership even during those rare moments when your Gryphon system stands silent.

Gryphon makes a new level of innovative design and musical insight available to the fortunate few with the Colosseum Stereo Power Amplifier, the latest chapter in the adventure that is the Gryphon's tale.

The Gryphon Colosseum

Curiosity and Ambition
Fittingly, the Gryphon's tale is not the typical story of how a company created a product. Instead, it is the story of how a product created a company a quarter of a century ago, as Gryphon's founder and a close-knit circle of talented friends created a product for their own use out of sheer unadulterated curiosity to see just how far performance could be taken if mundane concerns such as cost and conventional thinking were excluded from the creative process.

The result was a product (the now legendary Gryphon Head Amp) so far beyond the current state of the art in both technology and concept that it remains a much sought after cult component that even now can hold its own in performance and serves as a milestone reference for many audiophiles.

This "take no prisoners" approach would lay the foundation for all Gryphon products to come and that unbridled curiosity and ambition to reveal even more of the essence of every musical performance remain the driving force behind all our efforts to this very day.

Curiosity and ambition were sparked by the seemingly arrogant notion that Gryphon should not give people what they want, but instead offer them what they truly need, but just didn't know it yet. Fortunately, a growing number of music lovers and dedicated audiophiles saw the value and validity of this approach, despite the substantial price of admission that makes Gryphon the exclusive reserve of a small circle of discerning individuals who insist on owning the very best.

By its very nature, Gryphon is likely to remain a brand name that many have heard of, some have had the rare opportunity to experience, but only a select few are fortunate enough to own.

This is the way it must be for a company driven solely by the desire to offer products that are not superseded by next year's Spring collection, a company populated with opinionated individualists who can only find satisfaction in developing lasting technology and timeless industrial design that interfaces perfectly with the owner's contemporary lifestyle.

The Gryphon Colosseum

Tower of Power
The eagerly anticipated Gryphon Colosseum is the first new Gryphon component since the Mirage preamplifier, the radical design experiment that laid the cornerstone for an esoteric third tier of Gryphon components. Representing the most comprehensive development project in Gryphon's history, the Colosseum Stereo Power Amplifer will enhance any home audio system.

For ultimate convenience, the Colosseum can be configured to turn on automatically when the preamplifier turns on and to power down following a period with no signal. A software-based user interface permits easy, intuitive access to practical user-controlled features.

Gryphon Audio Designs remains committed to discrete circuitry and 100% Class A bias in the Gryphon Colosseum power amplifier, weighing in at 80 kg. While the Colosseum takes Gryphon's distinctive styling one step further, our ongoing commitment to uncompromising sound quality is reaffirmed by a wealth of details such as 2 x 160 Watts Pure Class A output power, 48 High-current bipolar output transistors, a 340,000 microFarad power capacitor bank and flat frequency response extending beyond 350 kHz.

The strict dual mono amplifier is suspended between the curved, de-coupled side panels in a unique configuration that provides optimal layout and operating conditions for all components. The dual transformers are isolated and effectively shielded to prevent unwanted interaction with other components. Unique mechanical design ensures optimal thermal tracking between drivers and output devices. The separate driver section has its own power supply from individual windings on the custom-built toroidal transformers and features its own generous bank of proprietary Gryphon capacitors.

The output section employs Sanken bipolar output devices for extreme reliability in addition to outstanding sonic performance. These transistors deliver momentary peak power of 4,000 Watts per channel without overload. Each of the 48 transistors is bypassed with individual film capacitors.

In the best Gryphon tradition, the Colosseum utilizes a completely independent transformer and power supply for display and control circuits, creating an effective firewall that prevents digital noise generated by these circuits from reaching the amplifier circuits. Negative feedback is not used and DC coupling is achieved with DC servo circuitry. Internal wiring in the signal path is kept to an absolute minimum. The finest Gryphon Guideline Reference silver cable is used throughout.

The Gryphon Colosseum is fitted with balanced inputs exclusively. Eliminating phono sockets in the signal path ensures the integrity of the sensitive audio signal.
The custom-built Gryphon speaker terminals accept bare wire, spade lugs, banana connectors for a tight, reliable connection.

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