Apex Stereo

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.

Features

Exterior design by Flemming E. Rasmussen

Electronics design by Tom Møller

Pure Dual Mono configuration

Zero global negative feedback

64 very high current bipolar output transistors

1.040.000μF (>1 Farad) capacitor bank

Extremely low capacitance Class A J-FET input buffer

Balanced dual differential class A input circuitry followed by a very fast symmetrical voltage amplifying Class A stage

Fully regulated low noise power supply for all voltage amplifying stages

DC servo coupling

Frequency-independent damping factor

Gryphon silver internal signal and power wiring

Premium massive Zn foil capacitors used for local power supply decoupling, with a loss factor ten-times lower than of metallized PP-film capacitors.

4-layer up to 105 um copper printed circuit boards

Two separate custom made 2000VA toroidal transformers

Individual decoupled left/right transformer castings

True balanced inputs with gold-plated Neutrik XLR input sockets

Separate linear power supply for both digital and analog circuits

Soft start turn-on prevents triggering of fuses or circuit breakers in the home electrical system

Gryphon gold-plated custom-built binding posts

AC polarity indicator

12V Link for remote power on and off

Automatic Green Bias setting via Green Bias control link or manual Low/Mid/High bias

Firmware upgradeable via USB stick

Non-intrusive protection system

Standby current consumption < 0,5W

Designed and manufactured in Denmark

Specifications

2 x 210W @ 8Ω, 2 x 420W @ 4Ω, 2 x 800W @ 2Ω and 2 x 1490W @ 1Ω at 115V/230Vac

Noise, unweighted 20-20kHz: < -80dBV

Noise, A-weighted: < -86dBV

THD+N: < 0,02%, 50W @ 8Ω

IMD (DFD): < 0,02%, 50W @ 8Ω

Output impedance: 0,015Ω

Bandwidth (-3dB): 0,3Hz to 330kHz

Gain: +31,0dB

Input level: 1,16Vrms

Input Impedance, balanced (20-20kHz): 20kΩ

Power consumption (Maximum): 3700W

Power consumption (Idle): Bias H: 1000W / Bias M: 660W / Bias L: 320W

Power consumption (Standby): < 0,5W

AC inlets: 2 sockets for power cords with C19 receptacle

Dimensions, WxHxD:59,3×37,1×88,6 cm, 202kg net

Shipping dimensions:102 x 81 x 67 cm, 265kg

Note: Specifications can be changed without notice.