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Vulcan Evo - Trio Mono

Ayon Audio · Mono / Evo Mono

Vulcan Evo - Trio Mono

The ultimate expression of pure single-ended triode power and refinement.

The Vulcan Evo Trio stands as a defining achievement in Ayon Audio's pursuit of sonic perfection, representing a massive evolution in parallel single-ended triode amplification. Designed for those who demand the delicate transparency of a purist circuit coupled with the physical authority to drive demanding loudspeakers, it remains one of the most powerful and refined SET amplifiers available. At the core of its design philosophy is a radical commitment to signal purity. By utilizing a zero-feedback architecture and completely avoiding solid-state devices in the signal path, the Vulcan Evo Trio ensures that the harmonic texture of the music remains entirely uncoloured. The redesigned driver stage, featuring Ayon's proprietary AA20B vacuum tube, provides an incredibly short, direct flow that captures the subtle emotional nuances of any performance. The sonic signature is characterized by an expansive, three-dimensional soundstage and a striking level of tactile presence. It avoids the traditional limitations of SET designs, offering a firm, voluminous bass foundation and extended, crystalline highs that never lose their composure. With its massive power reserves and high-current delivery, it brings a sense of effortless scale and authority to any high-end system, rendering recordings with breathtaking neutrality and breathtaking realism.

Key Features

01

Parallel SET architecture

Utilises high-current AA62B tubes in a parallel configuration to deliver 70 watts of pure Class A triode power.

02

Zero-feedback design

A completely feedback-free circuit ensures an ultra-short signal path, preserving transient speed and low-level harmonic detail.

03

Proprietary AA20B driver

A bespoke, direct-heated driver tube meticulously designed by Ayon to provide the most direct signal flow possible.

04

Auto-fixed bias system

An intelligent bias management system with a built-in tube test program ensures optimal performance and tube longevity.

05

Super-wide bandwidth transformers

Custom-wound output transformers offer high efficiency and low insertion loss, delivering punchy bass alongside exceptional high-frequency speed.

Design & Philosophy

Chapter 01

Design & Philosophy

The Vulcan Evo Trio is built on the belief that the simplest circuits work best when combined with the shortest possible signal path. By stripping away all buffers and followers, Ayon ensures that the musical signal is protected from degradation. The resulting power source is remarkably clean, providing a silent backdrop that allows the music to unfold with natural, unconstrained authority.
Manufacturing Process

Chapter 02

Manufacturing Process

Each monoblock is hand-assembled in a non-magnetic, resonance-optimised aluminium chassis that serves as an effective shield against EMI and mechanical interference. Components such as gold-plated PCB traces, beryllium-copper tube sockets, and high-speed coupling capacitors are chosen for their synergistic relationship to the circuit, reflecting a standard of craftsmanship intended for long-term reference use.
Listening Notes

Chapter 03

Listening Notes

Listeners can expect a sheer boundless soundstage that does not shrink under dynamic load. The amplifier delivers a rare combination of voluminous, acutely controlled bass and a tactile, liquid midrange. It is an extremely addictive performer that combines the intimacy of a 300B-style design with the visceral dynamic reserves required for modern, complex orchestral recordings.

Specifications

TypePSE- Triode, pure Class-A
Frequency response10 Hz – 50 kHz
Sensitivity400mV
Impedance4 and 8 Ohms
Power handling70 Watt
Dimensions (H × W × D)36x63x25 cm
Weight46 kg per unit
Tube ComplementAA62B
Negative Feedback 0dB
Bandwidth10Hz – 60kHz
Input Impedance47 KΩ
S/N ratio92 dB
NFB0dB
InputRCA & XLR