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Spartacus 300B
Thrax AudioEstimated price (community-sourced)
About the Spartacus 300B
The Thrax Spartacus 300B amplifier is a high-end, pure class A triode mono amplifier employing six Western Electric 300B tubes in two amplification stages to deliver 50 watts of power. It features a minimalist signal path with zero feedback and no capacitors, ensuring pure, uncolored sound. The design includes a current-sourced 300B shunt regulator for stable, noise-free operation and a special filament heating circuit for harmonic richness and tube protection. The amplifier uses transformer-coupled input and output for galvanic isolation and is microprocessor-controlled for safety and ease of use. Its modular construction allows for easy servicing and upgrades. The Spartacus 300B is renowned for its deep, wide soundstage, low distortion, and dynamic, controlled bass, making it a statement piece in modern tube amplification.
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