Gryphon Audio Helios
The Drive
At its heart, The Gryphon Helios refines The Gryphon Pandora’s proven Class A input topology with new, ultra-low-noise dual JFETs. This architecture ensures unparalleled purity, delivering a transparent, effortless, and natural sound, rich in tactile presence. A precise 85-step relay-based attenuator provides refined volume control, while a fully balanced signal path—free from global negative feedback—preserves the music’s immediacy and vitality. Every component, from custom toroidal transformers to premium capacitors and precision resistors, is meticulously selected to achieve the lowest possible noise and highest musical integrity.
The Gryphon Helios accommodates our latest Digital and Analog modules. Two blanking panels on the rear of the preamp chassis enable the Helios to be upgraded with the DAC3 Digital Module and/or the PS3 Phono Module, either at the time of purchase or at some future date, in accordance with the owner’s desires. This ability to tailor system interfaces and functionality for diverse applications sets The Helios apart.
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Specifications
- Input Impedance
- balanced: 25KΩ single-ended: 12K5kΩ
- Output impedance
- 8Ω
- Bandwidth (-3dB)
- 0.1Hz to 1.5MHz
- Gain
- +18dB
- THD + N
- 0.003% @ 1kHz and BW 10Hz – 30KHz, balanced output
- Max output level
- balanced: 20Vrms single-ended: 9,5Vrms
- Max input level
- balanced: 20Vrms single-ended: 10Vrms
- Power consumption
- ≤ 0.5W (standby), approx. 90W (idle, including PS3 and DAC3 modules installed)
- AC voltage range
- 110-120V or 220-240V
- AC inlets
- 2 x IEC C14 inlets (for power cords with IEC C13 receptacle)
- MENU-controlled functions
- Volume Max Level Voume Start Level Balance, Left/Right. (6dB in 1dB steps) Output level: “Normal” or “-6dB” Display Intensity: (100%-75%-50%-25%, Auto Dim and Auto OFF) Green Bias setup Infra-Red source (Front or Rear Panel) Input Level Match Input Renaming Dedicate Input 3 (XLR) or Input 4 (RCA) to Fixed-level AV-input Restore Settings Phono Stage MM/MC selection (optional) DAC level and filter settings (optional)
- Dimensions
- Dimensions Preamplifier unit, WxDxH: 47,5 x 38,7 x 17,3 cm, net unit weight: 13,9 kg Dimensions PSU 5 unit, WxDxH: 47,5 x 38,7 x 17,3 cm, net unit weight: 18,2 kg Shipping dimensions: Two crates; each LxWxH: 58 x 57 x 28, respectively 25,2 kg and 29,2 kg
Manufacturer's Description — Gryphon Audio
The Drive
At its heart, The Gryphon Helios refines The Gryphon Pandora’s proven Class A input topology with new, ultra-low-noise dual JFETs. This architecture ensures unparalleled purity, delivering a transparent, effortless, and natural sound, rich in tactile presence. A precise 85-step relay-based attenuator provides refined volume control, while a fully balanced signal path—free from global negative feedback—preserves the music’s immediacy and vitality. Every component, from custom toroidal transformers to premium capacitors and precision resistors, is meticulously selected to achieve the lowest possible noise and highest musical integrity.
The Gryphon Helios accommodates our latest Digital and Analog modules. Two blanking panels on the rear of the preamp chassis enable the Helios to be upgraded with the DAC3 Digital Module and/or the PS3 Phono Module, either at the time of purchase or at some future date, in accordance with the owner’s desires. This ability to tailor system interfaces and functionality for diverse applications sets The Helios apart.
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- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alta Fedelta — online and in-store — Lombardia, Italy (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Audio Evolution — online and in-store — Volla, Campania, Italy (website)
- Audio Excellence (CA) — online and in-store — Markham, Ontario, Canada (website)
- Audio Excellence (CH) — Switzerland (website)
- Audio Gallery — online and in-store — Las Rozas de Madrid, Comunidad de Madrid, Spain (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
- Audio Salon — in-store — Boca Raton, Florida, United States (website)
and 44 more verified dealers