A chapter of HFR’s Complete Buyer’s Guide to High-End Audio
Gryphon Audio Designs is a Danish maker of ultra-high-end, pure Class A electronics, founded in Ry, Denmark by a painter and graphic artist rather than an engineer. Flemming E. Rasmussen built the first Gryphon Head Amp as a spare-time project for his own system; positive reception after its 1986 Chicago Consumer Electronics Show debut led him to formalize Gryphon Audio Designs as a company in 1985.
Four decades later, Gryphon is known for a specific, uncompromising engineering position: pure Class A operation, zero global negative feedback on the vast majority of its designs, and true dual-mono topology — separate power supplies and signal paths per channel from the wall outlet inward.
This guide covers Gryphon’s ownership history, its design philosophy, the current product line, and what to know before buying used.
Flemming E. Rasmussen holds a degree in painting and graphic arts from the Aarhus Art Academy in Denmark. He taught photography and painting for a decade, then became chief designer of textiles for a major Scandinavian sportswear manufacturer before founding 2R Marketing, described by the company as Denmark’s leading high-end audio importer. The Gryphon Head Amp — a moving-coil head amp / phono stage — began as a project Rasmussen built purely for his own system. It was shown at the 1986 Chicago Consumer Electronics Show and subsequently voted a “Best Buy” by Japanese audio press, generating demand that led Rasmussen to formalize Gryphon Audio Designs as a company separate from 2R Marketing in 1985. The 2R Marketing import business was phased out entirely by 1993 so Rasmussen could focus solely on Gryphon.
1985–2002 — Rasmussen ownership. Rasmussen owned and led Gryphon through its first advertised generations, including the original Antileon power amplifier line and the Mikado CD player, which established the company’s reputation internationally.
A Peter Lyngdorf interlude. In an on-record interview, Danish audio entrepreneur Peter Lyngdorf (founder of DALI) described Rasmussen as a close personal friend who came to him during a period of financial difficulty. Lyngdorf agreed to buy Gryphon on the condition that Rasmussen could buy it back once the company was stable again, and owned the company for roughly three years before Rasmussen repurchased it. Lyngdorf has described the two as remaining good friends afterward. Neither party has published exact dates for this arrangement.
2002 — Valdemar Børsting acquires majority control. Børsting became a 90%+ majority shareholder, with Gryphon employees holding the remaining minority interest. Rasmussen retained a stake and continued as the company’s public face and creative lead.
2010 — Rasmussen exits ownership. Rasmussen sold his remaining shares to Børsting but continued in his operational and design role.
2018 — Rasmussen retires; Jakob Odgaard takes over daily operations. After 33 years, Rasmussen retired, with Jakob Odgaard named to lead daily operations. Gryphon said at the time it hoped Rasmussen would continue contributing new designs in retirement, and he went on to work on selected products including the Diablo 333.
April 2025 — Goer Dynamics minority stake. Goer Dynamics — the Danish arm of Chinese audio-industry group Goertek, whose portfolio also includes Dynaudio, Libratone, and the recently acquired Auro-3D — acquired a minority stake in Gryphon and became its exclusive distributor for Mainland China, Hong Kong, and Macau. The announcement stated Gryphon continues under the same management, with no changes to daily operations, service, or support. The Børsting family retains majority control.
Gryphon’s engineering position has stayed consistent across four decades. Per the company’s own account of its design principles, five commitments define the line.
Gryphon designs are heavily biased toward Class A operation to keep transistors within their most linear operating region. Class A operation dissipates far more heat at idle than Class A/B or Class D alternatives, which is why Gryphon’s higher-power amplifiers are large, heavy, and run hot continuously — a genuine ownership consideration covered below.
Gryphon states that the vast majority of its products use zero global (loop) negative feedback. Local feedback is used within individual gain stages where it improves measured performance without introducing the time-domain artifacts the company associates with global feedback loops.
Gryphon says it was the first manufacturer to introduce a true dual-mono configuration — each channel electrically independent from the other, including separate power supplies, eliminating any possibility of channel interaction through a shared power source or ground reference.
Gryphon pioneered the external power supply with extensive mains filtering, built on the position that the audio signal effectively begins with the AC at the wall outlet, and that everything downstream inherits whatever character that supply has. The current Helios preamplifier’s optional external PSU 5 power supply — a dedicated chassis on top of the preamp itself — is the modern expression of that approach.
Per Gryphon, every module receives individual testing and its own certificate; completed units go through comprehensive function testing, a 48-hour burn-in, and a final listening audition by Gryphon personnel. Some key components are sourced from subcontractors approved for mil-spec production and for military and medical equipment manufacturing. Gryphon’s in-house engineering and design team is small — typically 4 to 5 people covering separate technical disciplines on any given project.
Rasmussen assembled a collection of first- and second-generation master reel-to-reel tapes of studio recordings from 1956 to 1976, played back on a modified Studer A80 deck as a listening reference during product development — a pre-digital acoustic benchmark the company still uses when voicing new designs.
The product that started the company — a moving-coil head amp / phono stage that debuted at the 1986 Chicago CES and won a “Best Buy” citation from Japanese audio press. Still sought after by collectors as the piece that generated the demand behind Gryphon’s founding.
Gryphon’s reference power-amplifier lineage, first shown in 1991 as the DM-100 and refined through five generations into the current Antileon Revelation. The Revelation delivers 160W per channel at 8Ω in stereo mode, or 180W per channel in monoblock mode, with US pricing of $49,800 per chassis — a single chassis for stereo use, or two chassis for a monoblock pair (roughly $99,600).
The Mikado was Gryphon’s first CD player and, along with the mid-2000s Colosseum power amplifier, is regarded by long-time Gryphon owners as emblematic of the company’s cost-no-object era. Both are long discontinued but still traded among collectors on the used market.
Gryphon’s mid-tier power amplifier and matched line-stage preamplifier, in continuous production for roughly fourteen years — an unusually long run in high-end audio. Both were replaced in 2026 by the Hyperion power amplifier and Helios preamplifier. Existing owners continue to receive factory support.
Gryphon’s dual-mono integrated amplifier line. The Diablo 120 is priced at $9,990, with an optional DAC card at $4,250. The larger Diablo 333 starts at $24,990, delivering 333 watts per channel into 8 ohms and 666 into 4, with an optional DAC3 module ($7,000) and PS-3 phono module ($5,600) that together bring a fully loaded unit to roughly $37,590.
Gryphon’s current flagship power amplifier, available in stereo and monoblock form. US pricing runs approximately $99,000 per chassis — a single chassis for the stereo version, or two chassis for a monoblock pair (roughly $198,000).
Introduced at High End Vienna 2026 as the successors to the 14-year-old Pandora and Mephisto. The Helios preamplifier is priced at $29,800, with the optional external PSU 5 power supply adding $20,800 (roughly $50,600 combined). The Hyperion power amplifier is $80,200 in stereo form or $160,400 as a monoblock pair, and was still pending shipment as of its announcement.
Gryphon’s current lineup spans integrated amplifiers, separates, loudspeakers, and (as of 2024) a first-ever analog source, all designed and built in Ry, Denmark.
Diablo 120 ($9,990) and Diablo 333 (from $24,990), both true dual-mono with zero global negative feedback.
Antileon Revelation ($49,800/chassis), Apex (flagship, ~$99,000/chassis), and the 2026 Hyperion ($80,200 stereo / $160,400 monoblock pair).
The 2026 Helios ($29,800, optional PSU 5 external supply at $20,800), plus the existing Zena and Commander preamplifier lines.
The EOS and Trident lines round out Gryphon’s current speaker offering, alongside its legacy Kodo reference system.
Gryphon entered analog playback for the first time in 2024 with a turntable and matching phono preamplifier — a new category for a company that had, until then, built only electronics and loudspeakers. On the digital side, Gryphon continues to offer CD playback and DAC products consistent with its electronics line.
Gryphon’s used market benefits from the same continuity that defines the brand: long production runs (many products stay in the lineup for seven to fourteen years), a stable design philosophy across generations, and ongoing factory support through Gryphon’s small in-house engineering team. A buyer’s framework:
Used Diablo 120 and Diablo 300/333 units deliver the core Gryphon signature — pure Class A biasing, zero global negative feedback, dual-mono construction — at a meaningful discount to current new pricing, and are the most commonly recommended first Gryphon purchase.
Pure Class A operation dissipates significant heat continuously, even at idle. Ask sellers of older Antileon, Mephisto, or Apex units about typical operating conditions and ventilation, and inspect for any signs of heat stress around heat sinks or internal components before buying.
With their 2026 replacement by Helios and Hyperion, existing Mephisto and Pandora units remain factory-supported but are no longer in production — worth knowing both for service planning and for how their used-market value may shift over time.
Given Gryphon’s module- and unit-level QC certificate process, original documentation adds real, verifiable provenance to a used purchase. Ask sellers for photos of any certificates, original packaging, and accessories before agreeing to a price.
Gryphon’s higher-tier power amplifiers deliver very large current reserves designed for demanding loudspeaker loads. In smaller rooms or with easier-to-drive speakers, that same capability brings substantial heat and size with limited practical benefit — match the tier to the system, not to the ceiling.
Gryphon’s production volumes are modest, and its long model cycles and stable design philosophy tend to support comparatively durable used pricing relative to brands that refresh their lineup more frequently.
Diablo-tier integrateds hold value well relative to comparably positioned integrated amplifiers from other manufacturers, reflecting both the long production runs and continued factory support.
Newly-discontinued models (Mephisto, Pandora) are worth watching as the used market adjusts to their replacement by Hyperion and Helios — pricing dynamics for recently-discontinued flagship-adjacent products can shift meaningfully in the first year or two after a successor ships.
Flagship Apex and Antileon Revelation units transact infrequently and mostly through dealer networks rather than open marketplaces, given limited production and price point.
Flemming E. Rasmussen — a Danish painter and graphic artist by training (a degree from the Aarhus Art Academy), who ran the Danish high-end audio importer 2R Marketing before the Gryphon Head Amp, originally built as a spare-time project for his own system, generated enough demand after its 1986 Chicago CES debut to justify forming Gryphon Audio Designs as a separate company in 1985.
No. Rasmussen sold his majority stake to Valdemar Børsting in 2002, sold his remaining shares in 2010, and retired from the company entirely in 2018 after 33 years, at which point Jakob Odgaard became CEO. Rasmussen continued contributing industrial design on selected products (including the Diablo 333) after his retirement.
Valdemar Børsting has held a 90%+ majority stake since 2002, with Gryphon employees holding the remainder. In April 2025, Goer Dynamics — the Danish arm of Chinese audio-industry group Goertek, which also owns Dynaudio, Libratone, and Auro-3D — acquired a minority stake and became Gryphon's exclusive distributor for Mainland China, Hong Kong, and Macau. Gryphon has stated the company continues under the same management with no changes to daily operations, service, or support.
Gryphon amplifiers are heavily biased toward Class A operation, and the vast majority of the company’s designs use zero global negative feedback. Gryphon states it was the first manufacturer to introduce true dual-mono topology (separate power supplies and signal paths per channel), and it pioneered the external, oversized power supply — treating the AC at the wall outlet as the literal starting point of the audio signal.
Both are true dual-mono integrated amplifiers with zero global negative feedback. The Diablo 120 is the smaller, more accessible model at roughly 120 watts per channel. The Diablo 333 is the larger flagship integrated, delivering 333 watts per channel into 8 ohms and 666 watts into 4 ohms, with optional DAC and phono modules.
Gryphon distributes through a region-based authorized-dealer network rather than a single global distributor; Goer Dynamics has held exclusive distribution rights for Mainland China, Hong Kong, and Macau since April 2025.
No authorized Gryphon dealers are listed on HFR yet. Check back as HFR’s dealer network grows.
For the full authorized dealer network worldwide, see gryphon-audio.dk.
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