The HELVIA ZEUS series, introduced into the company's catalogue several years ago, has quickly earned well-deserved success thanks to its perfect combination of sheer power, reliability, rugged construction and extremely competitive market pricing.
In this product category, generating high output power is not the real challenge. The real achievement lies in ensuring efficient heat dissipation and long-term reliability, especially in permanent installation applications.
Today, HELVIA expands its acclaimed low-impedance amplifier range with two new four-channel models: ZEUS 4600-H and ZEUS 4800-H. Designed to maximize power density within just 2 rack units without compromising dynamic performance, these amplifiers integrate seamlessly into a product family already highly appreciated by the market.
While much of the industry is rapidly moving toward Class D technology, HELVIA has deliberately chosen to further refine traditional Class H architecture. This design combines the sonic purity and fast transient response typical of Class AB circuitry with a multi-step dynamic power supply modulation system. The amplifier continuously monitors the input signal and switches the supply rail voltage only when required to accommodate dynamic peaks. The result is significantly higher thermal efficiency, dramatically reduced power consumption during idle operation, while preserving a full-bodied, detailed and transparent low-frequency response, where traditional toroidal transformers continue to make a tangible difference in current reserve.
