The HornSolutions XES represents a pinnacle of audio engineering achievement, combining classic Class A topology with innovative dynamic design principles. This document provides comprehensive technical information for audio professionals, dealers, and discerning audiophiles considering the XES for their high-performance audio systems.
Design Philosophy
The XES is built on a fully discrete, symmetrical Class A topology that delivers 20 watts of pure Class A power into an 8-ohm load. While the wattage specification may appear modest, this amplifier is engineered to drive even the most demanding loudspeakers with exceptional precision and authority, thanks to its remarkable 25A maximum output current capability.
At the heart of the XES's design is an innovative dynamic Class A architecture. Unlike conventional amplifiers that abruptly switch between operating classes, the XES employs a sophisticated approach: when the standing current reaches its threshold, the amplifier seamlessly transitions into Class B-style operation. This elegant solution ensures the additional current needed for dynamic peaks is delivered with finesse and control, maintaining the sonic purity of Class A operation under normal listening conditions while providing headroom when required.
Power Supply Architecture
The XES features a state-of-the-art dual mono split rail power supply configuration, representing an uncompromising approach to power delivery. Each channel benefits from its own massively over-engineered, independent power supply, providing several critical advantages:
Superior Channel Separation: Independent power supplies eliminate crosstalk between channels, ensuring exceptional stereo imaging and soundstage precision.
Enhanced Dynamic Response: With triple the supply capacity of conventional designs, the XES20 maintains voltage stability even during demanding musical passages, while simultaneously reducing ripple and noise to near-imperceptible levels.
Thermal Efficiency: Advanced transformer design minimizes heat generation and electromagnetic interference, contributing to the amplifier's exceptional noise floor and long-term reliability.
Circuit Protection: Sophisticated filtering circuits manage switch-on surge currents, protecting both the amplifier and connected loudspeakers while extending component lifespan.
The HornSolutions XES represents a thoughtful synthesis of traditional Class A excellence and modern engineering innovation. Its dual mono power supply architecture, dynamic Class A topology, and exceptional build quality combine to deliver a listening experience characterized by purity, precision, and effortless musicality.
