Audio-Technica AT-HA5050H

Not all headphones are the same. Each model has its own character and sound signature. That’s why we developed a headphone amplifier that allows you to choose between four different output impedances (two outputs each with 0.1, 33, 82, and 120 ohms). The AT-HA5050H is a hybrid Hi-Res audio headphone amplifier because it uses a pair of tubes in the preamp stage and transistors in the power stage. The tubes in the preamp stage add warmth and depth to the music, while the bipolar transistors provide distortion-free Class-A amplification that is powerful enough to drive headphones with varying impedances effortlessly. To further optimize the power supply in the amplifier, each part of the amplifier is powered by individual power supplies with fast recovery diodes and regulation circuits. The AT-HA5050H is equipped with two analog inputs (L/R RCA jacks and L/R balanced XLR jacks) and two digital inputs (S/PDIF digital coaxial input and USB input with selectable asynchronous and adaptive modes). The state-of-the-art DAC is optimized for compatibility with digital audio formats up to PCM 32 bit/384 kHz and DSD128. Additional features include classic analog VU meters with VU range selector, a large volume control, and an input attenuation switch.