Portable Headphone Amplifier


Enjoy crystal clear sound quality on the go with the AT-PHA100 portable amplifier. Designed to bring out the highest level of headphone performance. Equipped with a highly polished aluminium knob to ensure smooth operation. 


• Reduces distortion to reproduce clarity for intermediate and high frequency

• Equipped with a newly designed powerful acoustic technology that creates a high-density voice signal, and improve the response of the sound. This also enhances the resolution of high frequency and the low frequency range.

• Installed with 5 stages of sampling indicator (Lit only when digital connection is on)

• Highly polished aluminium knob that does not affect the S/N ratio of headphones and thus ensuring smooth operation


Currently NOT available in South-East Asia



System Spec Required PC with built-in USB2.0 port
Supported OS Windows XP and above or MAC OSX Mavericks
Headphone Impedance 10 ~ 300Ω
Maximum Output Level 100mW + 100mW (16Ω, THD 10% at the time), 80mW + 80mW (32Ω, THD 10% at the time), 10mW + 10mW (300Ω, THD 10% at the time)
Frequency 10Hz ~ 100kHz (-1dB)
Total Harmonic Distortion 0.001% or less (at the time of 32Ω10mW output)
SN Ratio 110dB (A Weighted)
Input Terminal 3.5mm gold-plated stereo mini jack × 1, Digital USB (micro-B) × 1 / asynchronous mode / DSD128 (DoP), DSD64 (Native / DoP): 24bit ~ 32bit / PCM 384kHz, 352.8kHz, 192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz, 32kHz: 16 ~ 32bit
Output Terminal 3.5mm gold-plated stereo mini jack × 1
Power DC5V, 500mA / Built-in rechargeable battery (lithium polymer battery)
Weight About 240g