Brand: Amphion
The Helium520 is a high-end headphone amplifier designed and built by Amphion. It is part of the brand's Helium series, which is known for its precise and lifelike sound reproduction.The Helium520 is equipped with a range of innovative features that set it apart from other amplifiers in its class. These include:1. Class A topology: The Helium520 uses a linear, Class A circuit that ensures ultra-low distortion and high-resolution performance.2. High negative feedback and regulation: This design enables Amphion to maintain precise impulse responses, improved noise reduction, and an extended frequency response.3. Asynchronous USB input: The Helium520 features an asynchronous USB input, which means it can decode and upsample PCM and DSD streams using its internal converters, providing unparalleled clarity and transparency.4. Headphone impedance switching: The amplifier offers four different headphone impedance settings, making it compatible with a wide range of headphone types and drivers.The Helium520 provides an immersive and detailed listening experience, with a clear and natural soundstage, an extremely precise transient response, and a wide frequency response. It's an excellent choice for high-end audiophiles who demand the highest possible sound quality and want a versatile amplifier that can handle a variety of music sources and headphone types.