Potato score: 93.5

94%

Gryphon Audio APEX #1
Gryphon Audio APEX variant 1
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Gryphon Audio APEX

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Balanced Output
Dual Mono Design

Overview

Since its introduction in 2022, Apex has been hailed as the finest power amplifier ever created. Critics and connoisseurs have universally praised its combination of shattering power and sublime delicacy; its ability to drive any loudspeaker balanced with unimpeachable tonal neutrality. It has always been Gryphon’s mission to achieve the highest possible audio performance in terms of sheer musicality, transparency and realism. With Apex Mono and Apex Stereo, Gryphon Audio Designs has elevated pure Class A power amplification a titanic leap above what was previously considered possible. Gryphon Apex takes us several significant steps closer in the quest for the most natural and convincing musical illusion.


Years of experience developing Antileon EVO and Mephisto, as well as ongoing research in the fields of circuit topology, component quality and reliability have culminated in Apex: the new flagship amplifier from Gryphon Audio Designs.


The Drive

As with the engine of an exotic sports car, Apex was designed to deliver nearly limitless power coupled with breathtaking finesse. Like Gioacchino Columbo, author of Ferrari’s iconic V12 engines, Apex designer Tom Moeller was charged with no less a task than creating a legend: an amplifier with virtually no limitations regarding performance, size or cost.


Apex’ material specifications illustrate its state-of-the-art design: Each Apex chassis features a complement of 64 very high-current bipolar output transistors (128 per Mono pair), 1,040,000 μF capacitor banks (>Farad/pair), two bespoke 2,000 VA toroidal transformers (four/pair), all housed in a magnificently wrought, constrained-layer-damped chassis. Apex Stereo tips the scales at 450 pounds, while a pair of Apex Mono weigh-in at 900 pounds!


Pure Class A operation has, since we introduced the DM100 in 1991, always been a Gryphon hallmark, because no other circuit topology can match its sonic perfection; however, TRUE, PURE CLASS A means heavy transformers, very large heatsinks, large quantities of expensive parts and costly assembly. Apex Stereo takes Class A to new heights with an unprecedented 210 Class A Watts per channel (RMS into 8 Ohms, up to 1800 WRMS into one Ohm) giving Apex owners mastery of any speaker load and volume level.


Given the massive power reserves available at all times, Gryphon Apex amplifiers simply do not “see” the loudspeaker; in other words, Apex’ virtually limitless reservoir of power and current renders it immune to loudspeaker characteristics. No speaker load, no matter how reactive, can affect Apex’ performance. This means that Apex always delivers its ultimate sound quality, regardless of loudspeaker choice. What’s more, unlike other high-power amplifiers, Gryphon’s no-compromise, pure Class A topology offers this prodigious power combined with ultimate refinement and delicacy in musical presentation.


It is Gryphon’s fundamental philosophy that all electronics in the playback chain should strive for neutrality, neither adding nor subtracting anything from the recording, no matter how “pleasing” such distortions may be. The Gryphon Apex is by nature a product for the fortunate few who can afford such a statement: a product for the connoisseurs who seek absolute purity in the reproduction of music. In short, Apex has been created for music lovers whose respect for the musicians, producers and mastering engineers inspires them to seek the truth lurking in the original recording.


Eternal Beauty

Founded by a fashion designer, Gryphon has always believed that components built to convey the beauty of music should themselves be beautiful, designed to stand as visual as well as sonic artworks in the most luxurious surroundings. Exquisitely wrought from the finest materials available, Apex’ deep black, “Nordic Noir” aluminum chassis incorporates advanced constrained-layer-damping technologies to optimize resonance, while the specification of non-magnetic materials virtually eliminates electrical interference. At once both gorgeous and highly efficient, Apex utilizes over-specified heat sinks to ensure stable operating temperatures and long, trouble-free lifespan. New and proprietary Gryphon speaker terminals—which debuted on Apex—accept bare wire, spade lugs, banana connectors and combine aesthetic beauty with extreme functionality.


In every design and construction aspect, Apex is designed to be cherished and appreciated for a lifetime. It is an amplifier whose performance is unlikely to be surpassed. Ever. Experience Apex and we’re sure you’ll agree.


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Overall Score 94/100

Rating for [object Object]

Deliciously Crispy

Gryphon Audio APEX — flagship class-A stereo amplifier

The Apex is a monumental, pure class-A stereo power amplifier that transforms listening into a visceral experience. Reviewers led by Jeff Fritz note thunderous dynamics and seemingly limitless headroom (210Wpc into 8Ω; stable to 1Ω), paired with a midband that renders strings and piano with exceptional resonance and tonal weight. Imaging and soundstage expand noticeably while PRaT and transient control provide crisp attack and long decay. Built like a battleship—massive heatsinks, dual 20A inputs and bespoke binding posts—the Apex demands space, power, and commitment. Ideal for owners of highly resolving speakers seeking flagship authority and musical realism. It also earned a Recommended Reference designation from SoundStage! Hi‑Fi Editors, positioning it as a transformative but specialist purchase.

SoundStage! ULTRA

"The Apex transformed listening sessions into experiencing sessions."

Pros

  • Exceptional dynamics and headroom with very low-impedance stability, driving speakers with authoritative, effortless power.
  • Rich, resonant midrange that brings strings and piano to life with palpable attack, sustain and decay.
  • Expansive soundstage and precise imaging that reveal micro-detail and convincing three-dimensionality.
  • Flagship-level build and thoughtful engineering—massive heatsinks, custom binding posts and dual power inputs reflect serious mechanical design.

&

Cons

  • Extremely large, very heavy and heat-generating; high price and physical demands make it suitable only for committed, well-equipped buyers.

Sound Quality

94/100

Dynamics

95/100

Reviewers repeatedly praise the Apex's effortless authority and headroom: SoundStage described it as driving speakers "like a big V8 engine" and noted obvious power reserves; multiple reviews mention the amp being stable to 1 ohm and delivering huge instantaneous energy. The ability to delineate attack, sustain and decay (PRaT improved, "digging further down into each musical instant") and the low-impedance stability cited in reviews support a top-tier dynamics rating for a flagship-class amplifier.

Soundstage Imaging

93/100

Multiple reviewers report a larger, deeper soundstage with precise, stable imaging: instruments were 'distinct', images 'larger and more three-dimensional', and micro-detail (vocal effects, instrument placement) was revealed. The Apex preserved and even expanded spatial cues while driving demanding loads, indicating excellent channel separation and imaging stability.

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Build Quality

92/100

Physical construction is heavy-duty and purposeful: massive multi-section heatsinks, large new-design binding posts, dual 20A power sockets and Green Bias control are all noted. Reviewers also call out the amp's size, weight and class‑A heat generation — evidence of a substantial power supply and conservative thermal design that befits a flagship product.

Value for Money

89/100

Reviewers consistently acknowledge a very high asking price (pieces cite approx. $99k–$100k) and note the Apex appeals only to a select buyer; at the same time they call it 'transformative' and SoundStage gave it 'Recommended Reference' status. The amp is quoted as being stable to 1 ohm with outputs up to ~1490 Wpc into 1 ohm (review text), which — combined with flagship-level build, dual high-current power inputs and the demonstrable sonic leap described by multiple reviewers — supports a justified-premium value assessment within its ultra-high-end peer group rather than labeling it overpriced for what it does.

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