The Gryphon Diablo 333 is a reference integrated amplifier engineered to combine exceptional power, control and transparency within a single uncompromising chassis. Designed and built in Denmark, its true dual-mono architecture incorporates technologies developed for Gryphon’s flagship Apex power amplifier and Commander preamplifier, including ultra-fast pre-driver transistors and ten high-current output devices per channel.

A massive dual-mono Holmgren transformer and 68,000µF of power-supply capacitance per channel provide exceptional dynamic headroom, allowing the Diablo 333 to deliver 333W per channel into 8 ohms, doubling to 666W into 4 ohms and reaching 1,100W into 2 ohms. Zero global negative feedback, an ultra-short signal path and a 43-step fully balanced relay volume attenuator preserve clarity and musical expression, while optional PS-3 phono and DAC-3 digital modules allow the amplifier to form the heart of an exceptionally capable high-end system.

Key Features

Reference integrated amplifier

Designed and built in Denmark

True dual-mono configuration

Zero global negative feedback

Technology derived from Gryphon Apex and Commander

Ultra-fast, low-capacitance pre-driver transistors

10 high-power Apex-derived output transistors per channel

Dual-mono Holmgren toroidal transformer

68,000µF power-supply capacitance per channel

333W per channel into 8Ω

666W per channel into 4Ω

1,100W per channel into 2Ω

Output impedance: 0.015Ω

Bandwidth: 0.1Hz–350kHz (-3dB)

43-step true balanced relay volume attenuator

Ultra-short signal path with minimal internal wiring

Four-layer PCBs with 70µm copper on all layers

Two balanced XLR inputs

Two single-ended RCA inputs

Dual subwoofer outputs

Selectable XLR or RCA Unity Gain/Home Theatre input

4.3-inch TFT capacitive touchscreen

Optional PS-3 MM/MC phono module

Optional DAC-3 module using ESS ES9039PRO DAC

Firmware upgradeable via USB

Dimensions: 468 × 472 × 245mm

Weight: 50.6kg

The Gryphon Apex Mono is Gryphon Audio Designs’ flagship pure Class A monoblock power amplifier, engineered without conventional restrictions on size, weight or cost. Designed and manufactured in Denmark, each monoblock combines balanced dual-differential Class A input circuitry, an ultra-fast symmetrical Class A voltage amplification stage and zero global negative feedback to deliver exceptional transparency, dynamic authority and control.

Sixty-four very high-current bipolar output transistors, an enormous 1,040,000µF capacitor bank and two bespoke 2,000VA toroidal transformers in each monoblock provide extraordinary energy reserves. The Apex Mono delivers 225W into 8 ohms, 450W into 4 ohms, 880W into 2 ohms and 1,690W into 1 ohm. Fully regulated low-noise supplies for the voltage amplification stages, extensive constrained-layer chassis damping and Gryphon silver internal wiring complete an uncompromising design capable of controlling the most demanding loudspeakers while preserving exceptional refinement and musical resolution.

Key Features

Flagship pure Class A monoblock power amplifier

Designed and manufactured in Denmark

Zero global negative feedback

64 very high-current bipolar output transistors per monoblock

1,040,000µF capacitor bank per monoblock

2 × bespoke 2,000VA toroidal transformers per monoblock

Extremely low-capacitance Class A J-FET input buffer

Balanced dual-differential Class A input circuitry

Ultra-fast symmetrical Class A voltage amplification stage

Fully regulated low-noise power supply for voltage amplification stages

DC servo coupling

Frequency-independent damping factor

Premium massive zinc-foil capacitors for local power-supply decoupling

Four-layer PCBs with up to 105µm copper

Gryphon silver internal signal and power wiring

Individually decoupled transformer castings

True balanced gold-plated Neutrik XLR input

Gold-plated Neutrik XLR signal pass-through

Gryphon custom gold-plated loudspeaker binding posts

Automatic Gryphon Green Bias control

Manual Low/Mid/High bias settings

Non-intrusive protection system

Firmware upgradeable via USB

225W into 8Ω

450W into 4Ω

880W into 2Ω

1,690W into 1Ω

THD+N: <0.02% at 50W into 8Ω

Output impedance: 0.010Ω

Bandwidth: 0.3Hz–330kHz (-3dB)

Gain: 31dB

Balanced input impedance: 10kΩ

Maximum power consumption: 3,700W per monoblock

High-bias idle consumption: 1,000W per monoblock

Two C19 AC power inlets per monoblock

Dimensions: 593 × 371 × 886mm each

Weight: 202kg each

The Gryphon Apex Stereo is Gryphon Audio Designs’ flagship pure Class A stereo power amplifier, engineered without conventional restrictions on size, weight or cost. Designed and manufactured in Denmark, its pure dual-mono architecture combines balanced dual-differential Class A input circuitry, an ultra-fast symmetrical Class A voltage amplification stage and zero global negative feedback to deliver exceptional transparency, dynamic authority and control.

Sixty-four very high-current bipolar output transistors, an enormous 1,040,000µF capacitor bank and two bespoke 2,000VA toroidal transformers provide extraordinary energy reserves, allowing the Apex Stereo to deliver 210W per channel into 8 ohms, 420W into 4 ohms, 800W into 2 ohms and 1,490W into 1 ohm. Fully regulated low-noise supplies for the voltage amplification stages, extensive constrained-layer chassis damping and Gryphon silver internal wiring complete an uncompromising amplifier designed to maintain refinement and musical resolution while controlling virtually any loudspeaker load.

Key Features

Flagship pure Class A stereo power amplifier

Designed and manufactured in Denmark

Pure dual-mono configuration

Zero global negative feedback

64 very high-current bipolar output transistors

1,040,000µF capacitor bank

2 × bespoke 2,000VA toroidal transformers

Extremely low-capacitance Class A J-FET input buffer

Balanced dual-differential Class A input circuitry

Ultra-fast symmetrical Class A voltage amplification stage

Fully regulated low-noise power supply for voltage amplification stages

DC servo coupling

Frequency-independent damping factor

Premium massive zinc-foil capacitors for local power-supply decoupling

Four-layer PCBs with up to 105µm copper

Gryphon silver internal signal and power wiring

Individually decoupled transformer castings

True balanced gold-plated Neutrik XLR inputs

Gryphon custom gold-plated loudspeaker binding posts

Automatic Gryphon Green Bias control

Manual Low/Mid/High bias settings

Non-intrusive protection system

Firmware upgradeable via USB

2 × 210W into 8Ω

2 × 420W into 4Ω

2 × 800W into 2Ω

2 × 1,490W into 1Ω

THD+N: <0.02% at 50W into 8Ω

Output impedance: 0.015Ω

Bandwidth: 0.3Hz–330kHz (-3dB)

Gain: 31dB

Balanced input impedance: 20kΩ

Maximum power consumption: 3,700W

High-bias idle consumption: 1,000W

Dimensions: 593 × 371 × 886mm

Weight: 202kg

The Gryphon Antileon Revelation Mono is a reference pure Class A monoblock power amplifier engineered to deliver immense current capability, absolute loudspeaker control and exceptional musical transparency. Designed and manufactured in Denmark, each monoblock employs fully balanced differential Class A input circuitry, a high-speed Class A voltage amplification stage and zero global negative feedback within an uncompromising single-channel architecture.

Eighty high-current Toshiba bipolar output transistors and an enormous 670,000µF ultra-low-ESR capacitor bank in each monoblock provide exceptional energy reserves, delivering 180W into 8 ohms, 360W into 4 ohms and 720W into 2 ohms in pure Class A. Extensive power-supply isolation, constrained-layer chassis damping, Gryphon silver internal wiring and extremely short signal paths contribute to exceptional resolution, dynamic authority and control, while Gryphon’s Green Bias system allows automatic or manual adjustment of Class A bias.

Key Features

Reference pure Class A monoblock power amplifier

Designed and manufactured in Denmark

Zero global negative feedback

Fully balanced differential Class A input circuitry

High-speed Class A voltage amplification stage

80 high-current Toshiba bipolar output transistors per monoblock

670,000µF ultra-low-ESR capacitor bank per monoblock

Premium polypropylene capacitors for local power-supply decoupling

Frequency-independent damping factor

Gryphon silver internal signal and power wiring

Military-specification double-sided PCBs with up to 105µm copper

Ultra-short signal-path circuit layout

Shielded and epoxy-damped transformer casings

Suspended and decoupled transformers for vibration isolation

True balanced gold-plated Neutrik XLR input

Gryphon custom gold-plated loudspeaker binding posts

Automatic Gryphon Green Bias control

Manual Low/Mid/High bias settings

Microprocessor-controlled non-invasive protection

Separate power supply for display and control circuitry

Soft-start power-on system

12V Link for remote power control

180W into 8Ω

360W into 4Ω

720W into 2Ω

Output impedance: 0.02Ω

Bandwidth: 0.3Hz–350kHz (-3dB)

Gain: 31dB

Balanced input impedance: 10kΩ

Maximum power consumption: 2,700W per monoblock

High-bias idle consumption: 500W per monoblock

Dimensions: 570 × 260 × 600mm each

Weight: 90kg each