Welcome, you can login or create an account
  • English
  • Français
  • Deutsch


In Stock

Free Delivery

The AT-PHA100 is eligible for free delivery. Please complete the checkout process with only products eligible for free delivery in your basket in order to avoid our standard delivery charge. Orders are usually processed and dispatched within 2 business days. Further delivery information.

Description Specifications Reviews

The AT-PHA100 portable headphone amplifier with built-in USB DAC is engineered using innovative, hand-selected audio components together for superb sound reproduction. Compatible with PCM 384 kHz/32 bit and high fidelity DSD sources, the AT-PHA100 gives headphones a rich, detailed boost throughout the sonic range with ultra-low distortion. Equipped with both analog and digital inputs (3.5 mm jack and USB micro-B, respectively) and 3.5 mm headphone jack, it also features a high/low gain switch, machined aluminium volume knob, and five-stage sampling indicator for digital input.

The internal lithium polymer rechargeable battery lasts up to 14 hours when amplifying an analog signal, and up to 6 hours when amplifying a digital signal. The amplifier comes with two rubber bands and a rubber mat for strapping the unit to a smartphone or other portable device, a 1.0 m USB cable (USB 2.0 to USB micro-B) and a 10 cm audio cable terminating in a 3.5 mm gold-plated stereo mini plug at each end.

  • Specially selected, discrete circuitry enhances the resolution throughout the frequency range
  • NJR MUSES 8832 pre-amp delivers rich, powerful sound from low to high frequencies
  • DAC ESS ES9018K2M circuit samples 384kHz/32-bit PCM, and DSD audio sources at 2.8/5.6MHz
  • Texas Instruments LME49720 op-amp suppresses distortion for crystal clear mid to high frequencies
  • Internal rechargeable lithium polymer battery lasts up to 14 hours
  • High/low gain switch and machined aluminum volume knob
  • Five-stage sampling indicator (for digital signal input)
  • All-aluminum enclosure protects delicate circuitry
  • Accessories: Includes two rubber bands and a rubber mat for strapping amp to a portable device, a 1.0 m USB cable (USB 2.0 to USB micro-B) and a 10 cm audio cable with 3.5 mm mini plugs.
Analog input 3.5mm gold-plated stereo mini-jack x 1
Battery Charging Approx. 10 hours from empty to full
Battery Life Digital connection: Approx. 6 hours / Analog connecton: Approx. 14 hours
Compatible Headphones Impedance 10 ohms - 300 ohms
Compatible OS Windows XP(32bit)*, Windows 7, Windows 8, Mac OSX Mavericks(10.9) / *Technical support by Microsoft is no longer available
Digital input USB(micro-B) x 1 / Asyncronous / DSD128(DoP), DSD64 (Native / DoP) : 24bit~32bit / PCM 384kHz, 352.8kHz, 192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz, 32kHz :16bit~32bit
Maximum Output Level 100mW + 100mW (16 ohms, T.H.D. 10%) / 80mW + 80mW (32 ohms, T.H.D. 10%) / 10mW + 10mW (300 ohms, T.H.D. 10%)
Power PC: USB bus power, DC5V/500mA / Battery: Built-in lithium-polymer rechargeable battery
System Requirements A computer with a USB 2.0 port or higher. / CPU: Intel Core2. 2.2 GHz or greater Intel CPU or equivalent AMD CPU / RAM: 2GB or more for 32-bit OS, 4GB or more for 64-bit OS
Total Harmomic Distortion Less than 0.001% (32 ohms 10mW Output)
Frequency Response 10-100,000Hz (-1dB)
payment methods
  • Facebook
  • Twitter
  • YouTube
  • Flickr