Audio-Technica AT-HA22TUBE Headphone Amplifier

The Audio-Technica AT-HA22TUBE Headphone Amplifier is a top - notch audio device. It uses two vacuum tubes in the pre - amplifier, delivering a thick and rich sound that's unique to tube amplifiers. With independent left and right circuits, it can accurately reproduce high - resolution audio. Its hybrid design combines vacuum tubes and semiconductor technology, offering the best of both worlds. The die - cast aluminium case is great at reducing vibration and distortion, ensuring clean sound. There's a convenient line - through output for AV systems, and the front panel has Ø6.3mm and Ø3.5mm stereo jacks, allowing you to use two headphones simultaneously. Key features include rich tube - produced sound, high - resolution audio reproduction, a hybrid design, reduced vibration, AV system compatibility, and dual - headphone output. Specifications cover a wide frequency response from 10 - 100,000 Hz, low total harmonic distortion of <0.25％, a high signal - to - noise ratio of >100dB, and a DC 15V 1.2mA power supply. It also has various input and output connections and compact dimensions of 79mm (H) x 105mm (W) x 142mm (D) with a weight of 615 g.

Using the Audio - Technica AT - HA22TUBE Headphone Amplifier is easy. First, connect it to a power source using the included AC adapter. Then, connect your audio source to the line - level analog input (RCA x 2). You can adjust the input attenuation to 0dB or - 12dB according to your needs. If you want to use an AV system, use the line - through output. For headphones, you can plug them into the Ø6.3mm or Ø3.5mm jacks on the front panel and use two at the same time. When using, make sure the device is placed on a stable surface to avoid vibration. Keep it away from heat sources and high - humidity areas. For maintenance, clean the exterior with a soft, dry cloth regularly. Don't use abrasive cleaners. If you have any problems, consult the manufacturer's service team.