Fezz Supernova Magnetar Stereo Power Amplifier

Product Summary

The Fezz Audio Supernova Magnetar Dual Mono Power Amplifier is a flagship stereo valve power amplifier designed for reference-level systems that demand scale, authority and refinement. Sitting at the top of Fezz’s Supernova range, it delivers true dual-mono architecture within a single substantial chassis, giving each channel its own independent signal path, power supply and output stage.

Built around eight KT150 output valves, supported by 6SN7 and 12AX7 driver valves, the Magnetar delivers 200 watts per channel with the musicality of valve amplification and the drive required for demanding loudspeakers. Its fully differential analogue circuit and Signature Line transformers are designed to preserve low-level detail while maintaining impressive dynamic control.

The Magnetar’s precision-milled aluminium chassis provides rigidity, shielding and resonance control, while premium internal components such as Mundorf capacitors, WBT speaker terminals, Neutrik XLR inputs, pure Teflon tube sockets and microcontroller-based auto-bias support long-term performance. It is a statement power amplifier for customers building a truly high-end two-channel system.

Key Benefits

• Flagship dual-mono valve power amplifier designed for reference-level stereo systems
• 200W per channel output gives excellent scale, authority and control for demanding loudspeakers
• Eight KT150 output valves deliver powerful dynamics while retaining valve richness and refinement
• Independent signal paths and power supplies help improve stereo separation and soundstage stability
• Fully differential analogue circuit supports low noise, linearity and fine-detail retrieval
• Precision-milled aluminium chassis helps reduce resonance and improve electromagnetic shielding
• Microcontroller-based auto-bias maintains optimum valve performance without manual adjustment
• Balanced XLR and RCA inputs allow flexible system matching with high-quality pre-amplifiers
• 2 years manufacturer's warranty

Technical Specifications

Power Amplifier Design

• Type: Vacuum tube stereo power amplifier
• Series: Fezz Audio Supernova
• Architecture: True dual-mono stereo power amplifier
• Circuit Topology: Fully differential analogue circuit
• Output Valves: 8 x KT150
• Driver Valves: 2 x 6SN7 and 2 x 12AX7
• Transformers: Toroidy.pl Audio Grade Signature Line by T. Lachowski
• Bias System: Microcontroller-based automatic bias adjustment

Inputs & Speaker Connections

• Balanced Inputs: 2 x XLR
• Unbalanced Inputs: 2 x RCA
• Speaker Terminals: WBT speaker terminals
• Suitable Speaker Impedance: 4 ohms / 8 ohms

Performance

• Nominal Output Power: 2 x 200W
• 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 inputs
• WBT speaker terminals

Power

• Power Consumption: 440W at idle
• Power Consumption: 1000W at full power

Dimensions

• Width: 681mm
• Depth: 604mm
• Height: 293mm

Weight

• 74kg

Colour

• Moonlight

What’s in the Box

• Fezz Audio Supernova Magnetar Dual Mono Power Amplifier
• KT150 output valves
• 6SN7 and 12AX7 driver valves
• Power cable
• Product documentation