Ayon Audio · Stereo / Evo Stereo
Spirit V PA
Pure class A triode power for the modern stereo system.
The Spirit V PA establishes a new benchmark for stereo power amplification, distilling Ayon Audio's most advanced engineering into a refined, high-performance chassis. As the dedicated power amplifier counterpart to the Spirit series, it is designed to serve as the silent, powerful engine of an uncompromising audio system, prioritising the preservation of delicate low-level information alongside formidable drive capability.
At the core of its design is a zero-negative-feedback circuit that maintains the integrity of the original source. By removing all solid-state buffers and negative feedback from the signal path, the Spirit V PA achieves an exceptional level of transparency and transient speed. This purist approach, supported by bespoke, super-wide bandwidth output transformers, ensures the amplifier remains unflappable even during the most demanding musical passages.
The sonic signature is one of effortless fluidity, balancing a rich, natural midrange with a taut and authoritative low-frequency response. It presents recordings with a three-dimensional holographic depth that places every instrument with precision. This is a restrained and confident performer, designed to provide a fatigue-free, immersive listening experience that reveals the subtle emotional textures and atmosphere of the recording studio.
Key Features
01
Switchable triode/pentode operation
Provides the listener with the choice between the smooth, natural textures of triode operation and the higher dynamic power of pentode mode.
02
Zero-feedback topology
The minimalist, feedback-free design preserves the original signal's phase and harmonic structure, leading to superior transient performance.
03
Dual grounding system
A sophisticated switchable grounding topology minimizes background noise and hash, allowing for higher resolution and deeper silences.
04
Super-wide bandwidth transformers
Custom-wound output transformers ensure low insertion loss and high current delivery for deep, controlled bass authority.
05
KT150/KT170 compatibility
Optimized to utilize high-performance modern power tubes for excellent stability and drive capability.
Chapter 01
Engineering Philosophy
The Spirit V PA adheres to the fundamental Ayon principle that the shortest signal path is the most effective. By stripping away non-essential circuitry and eliminating negative feedback, the amplifier maintains total honesty toward the source. Every internal component is chosen for its synergistic relationship to the amplification chain, ensuring that the signal is protected from degradation at every stage.
Chapter 02
Build Quality
Each unit is hand-assembled in a high-grade, brushed anodised aluminium chassis, which provides an effective shield against electromagnetic and radio-frequency interference. The construction is designed for resonance control, using non-magnetic materials and heavy-duty panels to dampen internal vibration. Details such as custom beryllium-copper tube sockets and point-to-point wiring reflect a standard of build quality intended for long-term reliability.
Chapter 03
Listening Notes
Listeners will find the Spirit V PA offers a rare combination of weight and agility. The soundstage is expansive and holographic, providing a tactile sense of instrument placement that breathes life into recordings. It excels at rendering complex, high-dynamic content without losing the delicate harmonic cues that define an authentic musical event, resulting in a presentation that is both authoritative and remarkably fluid.
Specifications
TypeTriode* or Pentode mode, Class-A*
Sensitivity700mV
Impedance4 and 8 Ohms
Power handling2 x 70 W (pentode) / 2 x 45 W (triode)
Dimensions (H × W × D)25 × 48 × 37 cm
Weight32 kg
Tube Complement4 x KT150
Bandwidth 12Hz – 60kHz
Input Impedance at 1 kHz 100 KΩ
NFB0 dB
Inputs1 x XLR In, 1 x RCA In