Gryphon Commander + PSU

71148 €

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Overview

Since Gryphon’s founding in 1985, the company’s philosophy has remained constant: the relentless pursuit of sonic perfection without compromises in design, construction or cost. The culmination of Gryphon’s four decades of design and engineering expertise are fully realized in Commander: the most advanced preamplifier ever made.

The Drive

Launch Pad for Commander was Gryphon’s brilliant Pandora, widely regarded as one of the world’s finest preamplifiers. Commander shares Pandora’s Dual-Mono layout with four separate chassis—two apiece for signal and power supply circuits—single-ended Class A input buffer (which passes the signal through the fewest possible parts) and zero global negative feedback. These designflourishes yield a sound that is exceptionally transparent, fast, natural and open: qualities that achieve their highest expression in Commander.

Naturally, Commander embodies major engineering advances including a high-precision voltage reference which delivers approximately 50 times lower noise than Pandora. A pair of fully discrete, linear power supplies (one per channel) are dedicated to analog circuitry while a third feeds the digital control circuits, maintaining absolute mechanical separation and electrical isolation between digital and analog sections. Weighing over 50 kilos, Commander’s dual-mono power supply chassis includes four custom-made toroidal transformers engineered for minimal noise. Two of these (one per channel) power the dual-mono preamplifier circuits while the second pair are reserved for upcoming Gryphon source components, ensuring a future-proof upgrade path.

Extensive use of aluminum chassis components lays a solid foundation for performance, yielding non-resonant enclosures that minimize both mechanical and electrical degradation, providing optimal working conditions for Commander’s finely-tuned amplifier circuits. Unique among preamplifiers, Commander’s constrained-layer-damped bottom plate—a “Sandwich” of three individual layers of Kerrock, bitumen and steel—reduce vibrtation to an absolute minimum. All amplifier and analogue power supply circuit boards float above these bottom plates on purpose-engineered isolators. A quartet of Gryphon Atlas Spikes under each chassis move resonance control even closer to theoretical perfection.

Needless to say, every part of Commander is the finest available: from the Charcroft Audio ultra-precision resistors used in our volume control to the premium, oversized Mundorf MCap® ZN foil capacitors specified for local power supply decoupling to the four custom-made 36VA toroidal transformers, no expense has been spared ensuring performance and build quality that defines the state-of-the-art.

SPECIFICATIONS

Topology / Design	True dual-mono, discrete balanced dual differential Class-A line stage with super-fast discrete Class-A input buffer; zero global negative feedback
Volume Control	Microprocessor-controlled 85-step relay attenuator with Charcroft Z-Foil ultra-precision resistors; AV bypass fixed-level input
Balanced inputs	4 × XLR sources
Single-ended inputs	2 × RCA sources (plus Tape input)
Balanced outputs	2 × XLR main outputs
Single-ended outputs	1 × RCA main output
Input impedance (balanced)	18 kΩ
Input impedance (single-ended)	12 kΩ
Output impedance	7 Ω
Gain	+18 dB
Bandwidth (-3 dB)	0.1 Hz to 1.5 MHz
THD + N (balanced)	0.003 % @ 1 kHz, 10 Hz–30 kHz
Maximum output (balanced)	19 Vrms
Maximum output (single-ended)	9.5 Vrms
Maximum input (balanced)	20 Vrms
Maximum input (single-ended)	10 Vrms
Power consumption	≤ 0.5 W (standby), ~90 W (idle)
Power supply	Four custom 36 VA toroidal transformers (two per channel) with dual-mono linear supplies; total 2×90,000 µF reservoir caps
Control functions (menu)	Max start volume, max level, channel balance, input naming, IR source select, AV bypass assign, Green Bias setup, restore settings, etc.
Display	4.3″ capacitive touch TFT with 4 mm glass window
Remote power control	12 V Link In/Out (remote power On/Off)
Standby power	≤ 0.5 W
Dimensions (preamp, W×H×D)	48 × 23.6 × 45.5 cm
Net weight (preamp)	~30.5 kg
Dimensions (PSU, W×H×D)	48 × 23.6 × 44 cm
Net weight (PSU)	~38.2 kg