NAT Audio · Vacuum Tube Power Amplifiers
Generator CT
High-power single-ended ceramic triode amplification with total signal integrity.
A striking achievement in vacuum tube engineering, the Generator CT employs a singular, high-output ceramic triode in a pure Class A, zero global feedback configuration. By leveraging this specialized military-grade tube, the amplifier achieves high-power output while maintaining the sonic purity and directness that define the finest single-ended topologies.
Positioned within the NAT Audio power amplifier line, the Generator CT serves as a sophisticated alternative for those who demand the emotional connection of a tube design without compromising on dynamics or drive. Its architecture is intentionally minimalist, stripping away non-essential circuitry to ensure the input signal remains entirely uncorrupted from stage to stage.
The sound character is distinguished by its composure and reach. It possesses the harmonic richness and liquidity expected of a triode design, yet it exhibits a level of grip and transient speed that allows it to command difficult speaker loads with ease. It is a highly capable instrument that presents music with clarity, weight, and an expansive sense of scale.
Key Features
01
Ceramic coaxial triode
Utilises a high-dissipation military-grade ceramic triode to achieve substantial power output in a single-ended circuit.
02
Zero global feedback
The design operates without global feedback to preserve the natural harmonic structure and transient accuracy of the signal.
03
Direct signal path
Constructed with a minimalist circuit that avoids coupling capacitors and inter-stage transformers for absolute transparency.
Chapter 01
Engineering Vision
The Generator CT represents a departure from traditional glass-envelope tube designs. By utilizing a military-grade coaxial ceramic triode, the engineering team has created a platform that delivers significant current and thermal stability. The design is a response to the challenge of providing high power without resorting to the typical compromises of push-pull or feedback-heavy topologies.
Chapter 02
The Story
As the spiritual successor to earlier ceramic-based experiments, the Generator CT distils decades of NAT Audio research into a single, highly refined package. The focus remains on physical and electrical simplicity, ensuring that the power delivery is as efficient as it is sonically transparent, effectively redefining the capabilities of a single-ended monoblock.
Chapter 03
Listening Notes
Those accustomed to standard tube amplification will find the Generator CT notably more articulate and authoritative in the lower registers. It handles complex textures and demanding dynamic swings with composure, maintaining a vivid presence that makes recordings feel immediate and tangible. It provides an honest, authoritative window into the performance.
Specifications
TypeSingle-ended monoblock power amplifier
Power handlingUp to 100 W pure Class A
Dimensions (H × W × D)222 mm × 483 mm × 480 mm
Weight43 kg per unit