HA160

About the HA160

The Burson Audio HA160 headphone amplifier is a high-performance, fully discrete solid-state amplifier designed and manufactured in Melbourne, Australia. It employs Burson's signature HD Opamp modules, which are hand-picked discrete devices with precision-matched transistors and high-quality components, assembled with a temperature-controlled soldering process. The amplifier uses a class A output stage and a custom 24-position stepped attenuator volume control with precision resistors to preserve sonic detail. The chassis is made from resonance-free aluminum panels of varying thickness to reduce mechanical noise and serve as an effective heat sink, allowing higher idle currents for lower distortion and better dynamics. It features two 6.35mm headphone jacks optimized for different impedance ranges (low and high impedance headphones), a single stereo analog input via gold-plated RCA connectors, and an internal regulated power supply. The HA160 delivers up to 650mW into 300 ohms and 800mW into 60 ohms with extremely low distortion (<0.001% THD at 6mW/300 ohms) and a wide frequency response from 5Hz to 35kHz (-1dB). The amplifier weighs approximately 4.5 to 6 kg and measures about 180mm x 250mm x 80mm. It is praised for its detailed, dynamic sound and robust build quality, with a