NFB-11.28

About the NFB-11.28

The Audio-gd NFB-11.28 is a high-performance DAC, headphone amplifier, and preamplifier combo designed for audiophiles seeking detailed and powerful sound. It uses the ESS Sabre ES9028Pro DAC chip supporting up to 32-bit/384kHz PCM and DSD formats. The device features a low jitter 100MHz TCXO clock and an Amanero USB interface for stable and high-quality digital audio input. It offers multiple digital inputs including USB, Toslink optical SPDIF, and RCA coaxial SPDIF. Outputs include RCA single-ended (configurable as fixed or variable) and a 6.3mm headphone jack. The analog amplification stage is fully discrete with a non-feedback ACSS design, delivering up to 3500mW into 25 ohms headphone load, ensuring ample power for most headphones. The unit includes selectable digital filters via dip-switches for user-customizable sound flavors. It has a robust build with dimensions 180mm x 220mm x 55mm and weighs 2.5 kg. The volume control uses a high-quality ALPS potentiometer. The NFB-11.28 is praised for its transparency, low distortion (THD 0.002%), high signal-to-noise ratio (118dB), and versatile connectivity, making it a comprehensive desktop audio hub for audiophiles.