Gryphon Essence Stereo Power Amplifier - As Traded

Gryphon Essence Stereo Power Amplifier - As Traded

Condition: Used. Very good, minor scuff on front fascia and swirl marks from cleaning (See photos, difficult to photograph)

Includes: Original shipping crate, power cable 

SN: 1612424

Warranty: 90 days (3 months)

Overview 

With an ultra-wide frequency bandwidth (0.5 Hz – 350 kHz, +0 dB, -3 dB), Gryphon Essence is conservatively rated at 50W into 8ohms, Class A.

The custom-built, shielded, high current toroidal transformer offers dual windings for left and right channel, with symmetrical AC power polarity for the amplifier stages.

The output and driver stage employ separate power supplies for effective isolation. A separate transformer for control and display circuitry isolates them from the signal path.

Features
• Exterior design by Flemming E. Rasmussen
• Electronics design by Tom Møller
• Dual mono configuration
• Zero global negative feedback
• 440,000 μF (Stereo) or 880,000 μF (Mono version) capacitor bank
• Balanced dual differential Class A input circuitry followed by a high-speed voltage amplifying Class A stage
• Fully regulated low noise power supply for all voltage amplifying stages
• DC servo coupling
• Frequency-independent damping factor
• Polypropylene capacitors for local power supply decoupling
• Four-layer up to 70 μm copper printed circuit boards
• One custom-made 1350 VA toroidal transformer
• Separate power supply for digital and analog circuits
• Soft Start turn-on prevents triggering of fuses in the home electrical system
• Gold-plated Swiss Neutric XLR socket for one balanced input per channel
• Gold-plated custom-built binding posts
• 12 V DC link for power up and down
• Automatic Green Bias setting or manual Low/High bias
• Flash memory upgrades via PC or Key-fob
• Non-invasive protection system
• RGB LED bar indicating Bias High, Low status.
• Standby current consumption < 0.5 W
• EU CE approval
• Designed and built in Denmark
• Dual Mono configuration
• Zero global negative feedback

Specification

2 x 50W @ 8 Ohms, 2 x 100W @ 4 Ohms, 2 x 190W @ 2 Ohms at 115V/230V AC supply
Output impedance: 0 .015 Ohms
Bandwidth (-3dB): 0 .3 Hz - 350 kHz
Power Supply Capacity (both channels): 440,000μF
Gain: +31 .0dB
Input Impedance, balanced (20-20,000 Hz): 20 k Ohms
Dimensions: 47cm X 24cm X 46cm (W x H x D), 45 kg net