Fezz Supernova Magnetar Mono Power Amplifiers (Pair)

Product Summary

The Fezz Audio Supernova Magnetar Mono Power Amplifiers are flagship valve monoblocks designed for reference-level stereo systems. Supplied as a pair, each amplifier is dedicated to a single channel, giving the left and right loudspeakers their own separate chassis, signal path and power supply for maximum separation, control and authority.

Each Magnetar mono amplifier uses four KT150 output valves, supported by 6SN7 and 12AX7 driver valves, to deliver 200 watts of valve power. This gives the system the scale and grip needed for demanding loudspeakers, while preserving the dimensionality, tonal richness and fluidity that make high-end tube amplification so compelling.

The Magnetar mono amplifiers are built with a fully differential analogue circuit, microcontroller-based automatic bias regulation, Fezz Signature Line transformers and a precision-milled aluminium chassis. Premium internal components, including Mundorf capacitors, pure Teflon tube sockets, Neutrik XLR input and high-quality speaker terminals, make this a true statement amplifier pair for the most ambitious two-channel systems.

Key Benefits

• Flagship mono valve power amplifiers designed for reference-level stereo systems
• Separate left and right amplifier chassis maximise channel separation, focus and soundstage stability
• 200W output from each monoblock gives excellent scale, control and dynamic headroom
• Four KT150 output valves per amplifier deliver powerful dynamics with genuine valve richness
• Fully differential analogue circuitry supports low noise, transparency and dimensional stereo imaging
• Microcontroller-based auto-bias keeps the KT150 valves operating at a stable, optimised point
• Precision-milled aluminium chassis helps reduce vibration and electromagnetic interference
• Balanced XLR input makes the pair a natural match for high-quality balanced pre-amplifiers
• 2 years manufacturer's warranty

Technical Specifications

Power Amplifier Design

• Type: Vacuum tube mono power amplifiers
• Series: Fezz Audio Supernova
• Supplied As: Pair of mono power amplifiers
• Circuit Topology: Fully differential analogue circuit
• Output Valves: 4 x KT150 per amplifier
• Driver Valves: 1 x 6SN7 and 1 x 12AX7 per amplifier
• Transformers: Toroidy.pl Audio Grade Signature Line by T. Lachowski
• Bias System: Microcontroller-based automatic bias adjustment

Inputs & Speaker Connections

• Input: XLR
• Speaker Terminals: High-quality speaker terminals
• Suitable Speaker Impedance: 4 ohms / 8 ohms

Performance

• Nominal Output Power: 200W per monoblock
• Total Harmonic Distortion: <0.5%
• Power Bandwidth: 16Hz – 80kHz
• Damping Factor: >30
• Input Impedance: 200kOhm
• Input Sensitivity: 1.4V

Construction & Components

• Precision-milled aluminium chassis
• Mundorf MCap EVO Oil capacitors
• Mundorf M-Lytic capacitors
• Gold-plated PCB signal paths
• Pure Teflon tube sockets
• Neutrik XLR input
• Designed for use with high-end balanced pre-amplifiers

Power

• Power Consumption: 220W at idle, per amplifier
• Power Consumption: 500W at full power, per amplifier

Dimensions

• Width: 645mm per amplifier
• Depth: 355mm per amplifier
• Height: 292mm per amplifier

Weight

• 48kg per amplifier
• 96kg per pair

Colour

• Moonlight

What’s in the Box

• Pair of Fezz Audio Supernova Magnetar Mono Power Amplifiers
• KT150 output valves
• 6SN7 and 12AX7 driver valves
• Power cables
• Product documentation