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High Fidelity Audio

Crossfire Evo Delta

Ayon Audio · Integrated / Evo Integrated

Crossfire Evo Delta

A masterpiece of single-ended triode design delivering holographic musical realism.

The Crossfire Evo Delta represents the pinnacle of Ayon Audio's single-ended triode engineering, designed for those who demand the intimacy of a purist circuit without compromising on power or scale. By refining every element—from the innovative driver and gain stages to the custom-wound output transformers—this amplifier achieves a profound level of clarity that reveals the deepest layers of your music collection. At the heart of the Delta lies a zero-feedback architecture that eschews all solid-state devices in the signal path, ensuring that the natural, organic textures of the AA62B-S vacuum tubes are preserved in their entirety. This commitment to simplicity creates a direct, tactile connection to the recording, delivering a performance that feels as immediate and life-like as a live event. The sonic character is defined by its expansive 3D soundstage and a remarkably low noise floor, allowing instruments to emerge from a silent, velvet-black background. It balances a liquid, transparent midrange with tight, articulate bass that maintains its composure even during complex orchestral passages. The Delta is a sophisticated, fatigue-free performer that brings a newfound sense of ease and fluidity to even the most demanding high-end systems.

Key Features

01

Parallel single-ended triode design

Utilises four AA62B-S power tubes to provide high current and voltage, ensuring stability with demanding loudspeaker loads.

02

Zero negative feedback

The ultra-short, direct signal path preserves transient speed and avoids the sonic degradation caused by feedback loops.

03

Super-wide bandwidth output transformers

Custom-engineered by Ayon to provide high efficiency and low insertion loss, delivering powerful bass and extended high-frequency clarity.

04

Dual grounding system

Features a switchable grounding topology that provides a significantly quieter background for greater resolution and detail retrieval.

05

Tube-regulated power supply

Equipped with dedicated chokes and an AA5U4G tube regulator to ensure high-speed energy delivery and complete isolation between amplification stages.

Design & Philosophy

Chapter 01

Design & Philosophy

The Delta is built on the belief that the shortest signal path is the most effective. By eliminating all non-essential components and ensuring the circuit avoids negative feedback, Ayon maintains the harmonic integrity of the original source. Every design choice is intended to operate the vacuum tubes within their optimal curves, resulting in a high-fidelity output that prioritises musicality and longevity.
Build & Materials

Chapter 02

Build & Materials

Housed in a high-grade brushed anodised aluminium chassis, the amplifier provides an anti-resonant, non-magnetic foundation that effectively reduces mechanical hash and micro-vibrations. Each unit is meticulously hand-assembled with premium components, including WBT NextGen binding posts and custom-made beryllium-copper tube sockets, ensuring a build quality that matches the internal sonic ambition.
Sonic Signature

Chapter 03

Sonic Signature

Listeners will find the Crossfire Evo Delta offers a rare combination of power and elegance. The performance is characterised by a wide, holographic 3D soundstage where instruments are placed with pinpoint accuracy. The midrange is liquid and saturated, while the bass remains firm and punchy, rendering music as a coherent, physical event rather than a clinical reproduction.

Specifications

Type Pure Class-A / DHT
Frequency response8 Hz – 50 kHz / -3 dB
Impedance4 and 8 Ohms
Power handling2 x 50 Watt
Dimensions (H × W × D)25 × 52 × 42 cm
Weight51 kg
Tube ComplementAA62B-S
Input Impedance at 1 kHz100 KΩ
S/N ratio at full power 98 dB
NFB0dB
Volume Control Yes
Remote ControlYes
Inputs & Output3xLine In, 1x XLR In, 1xDirect In, 1x Pre out