Spartacus 300

The Pinnacle of Tube Amplification

Spartacus 300 is a statement.
A masterpiece showcasing the unique qualities of Directly Heated Triodes

Exclusive use of 300B tubes for consistent, captivating sound.
Two-stage amplification with transformer-coupled input and output for maximum fidelity.
No capacitors in the signal path—just pure, uncolored sound.
Parallel push-pull output stage with custom transformer for 50 watts of Class A power.
Shunt regulator power supply with 300B tube for stable, noise-free operation.
Auto-bias system and microprocessor control for ease of use and reliability.
Special filament heating circuit for harmonic richness and tube protection.
Modular design for easy in-field servicing and upgrades.
Sealed chassis for safety, reduced microphony, and thermal management.

The Spartacus 300 is not just an amplifier—it’s a celebration of the legendary 300B tube, reimagined for the modern era. Combining the timeless warmth of Directly Heated Triodes (DHTs) with cutting-edge engineering, the Spartacus 300 delivers a listening experience that is both powerful and pure. With its minimalist signal path, innovative power supply, and meticulous craftsmanship, it stands as a testament to what tube amplification can achieve.

The Legendary 300B Tube, Perfected

At the heart of the Spartacus 300 lies the 300B tube, renowned for its exceptional linearity and harmonic richness. This iconic tube is used exclusively throughout the amplifier, ensuring a consistent and captivating sonic character. The Spartacus 300 employs only two amplification stages, preserving signal purity and delivering a sound that is both transparent and emotionally engaging.

Minimalist Signal Path, Maximum Fidelity

The Spartacus 300 features a transformer-coupled input and output, with no capacitors in the signal path. The input stage uses a silver/permalloy step-up transformer to add gain, while the output stage is driven by a phase-splitting transformer. This design ensures that the signal remains pure, free from the coloration and distortion often introduced by capacitors.

The output stage consists of four 300B tubes operating in a parallel push-pull configuration, centered around a custom transformer wound on a unique core material. Biased in pure Class A, this configuration delivers 50 watts of power with exceptional clarity and control, even on the most demanding loads.

Innovative Power Supply for Explosive Dynamics

The Spartacus 300’s power supply is a masterpiece of engineering. Based on a shunt regulator design, it utilizes another 300B tube to ensure stable power rails and instantaneous clipping with no modulation. This design allows the amplifier to deliver explosive dynamics and transparency, even under the most challenging conditions.

A nano-crystalline choke power supply filter further enhances performance, reducing noise and ensuring that the amplifier operates at its absolute best. The result is a level of clarity and speed that redefines what a 300B tube can achieve.

Auto-Bias and Microprocessor Control

The Spartacus 300 is designed for ease of use and reliability. A microprocessor manages the startup sequence, monitors tube operation, and oversees the regulated power supplies. The auto-bias systemcompensates for tube aging and ensures correct operation with any 300B tube, making tube replacement effortless.

Harmonic Richness and Tube Protection

A special filament heating circuit not only enhances the harmonic richness of the 300B tubes but also protects them, ensuring long life and consistent performance. Combined with the modular design, which allows for easy in-field servicing, the Spartacus 300 is built to last.

Safety and Stability

The Spartacus 300’s generously sized chassis encloses the tubes for safety and reduces airborne microphony. It also acts as a giant heatsink, ensuring optimal thermal performance. The amplifier’s torque binding posts provide secure connections, protecting your cables and ensuring the best possible signal transfer.

A New Benchmark in Tube Amplification

The Spartacus 300 is more than just an amplifier—it’s a revelation. Its combination of minimalist design, innovative engineering, and the legendary 300B tube delivers a sound that is both powerful and pure. Whether you’re listening to delicate acoustic passages or powerful orchestral crescendos, the Spartacus 300 brings your music to life with unparalleled clarity and emotion.

Experience the Spartacus 300

The Spartacus 300 is not just an amplifier—it’s a gateway to a new level of musical enjoyment. Its combination of timeless tube technology and modern engineering makes it the ultimate choice for those who demand the best.

Discover the power, purity, and passion of the Spartacus 300—and hear your music like never before.