Item #: AUD ATPHA100 LIST

Audio Technica AT-PHA100 Portable Headphone Amplifier

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Product Description

You don’t have to settle for wimpy, muddy sound just because you’re on the go. The AT-PHA100 Portable Headphone Amplifier is small (width and length comparable to a smartphone) but packs a powerful punch. Engineered using select audio components, and enclosed in all-aluminum casing to protect the circuitry, the AT-PHA100 gives headphones a rich, detailed boost throughout the sonic range with ultra-low distortion.

The AT-PHA100 is 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 aluminum 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.

Audio Technica AT-PHA100 Portable Headphone Amplifier Features
  • 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
  • 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


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Helpful Info about the Manufacturer
Phone:  330-686-2600 Warranty:  1 Year;
2 Year on Headphones and In Ear Monitors;
5 Year on 40 Series, Artist Elite, Broadcast and Production, Midnight Blues Series;
Liftetime on ATR and Premium Cable

Product Specifications

Audio Technica AT-PHA100 Portable Headphone Amplifier Specifications
  • System Requirements:
    • PC: with built-in USB port corresponding to USB 2.0 
    • CPU: Intel Core2 CPU2.2 GHz or equivalent 
    • RAM: 32-bit OS 2 GB or more, 64-bit OS 4 GB or more 
    • Supported OS: Windows XP (32-bit)*, Windows 7, Windows 8, Windows 8.1 
    • Mac OSX Mavericks (10.9) 
  • Corresponding Headphone Impedance: 10 – 300 ohms 
  • Maximum Output Level: 
    • 100 mW + 100 mW (10% during 16 ohms, THD) 
    • 80 mW + 80 mW (10% during 32 ohms, THD) 
    • 10 mW + 10 mW (10% during 300 ohms, THD) 
  • Frequency Characteristic: 10 Hz – 100 kHz (-1 dB) 
  • Signal-to-noise Ratio: 110 dB (A-weighted) 
  • Total Harmonic Distortion: <=0.001% (32 ohms 10mW output) 
  • Input Connector: Analog: 3.5 mm (1/8 inch) gold-plated stereo mini jack 
  • Digital: 
    • USB (micro-B)/asynchronous mode/ 
    • DSD128 (DoP), DSD64 (Native / DoP): 24 – 32 bit/ 
    • PCM 384kHz, 352.8kHz, 192kHz, 176.4kHz, 96kHz, 88.2kHz, 48kHz, 44.1kHz, 32kHz: 16 – 32 bit 
  • Output Connector: 3.5 mm (1/8 inches) gold-plated stereo mini jack 
  • Power Supply: 5V DC, 500 mA bus power system (PC)/rechargeable lithium polymer battery (BATTERY) 
  • Charging Time: Up to 10 hours (DC5V, 500mA) 
  • Battery Life: Digital about 6 hours (JEITA) / analog about 14 hours (JEITA) 
  • Dimensions (HxWxD): 1.1  x 3 x 4.6 inches (27x77x116mm) 
  • Weight: About 240 g 
  • Accessories Included: 1.0 m USB cable (USB 2.0 to USB micro-B), 10 cm audio cable (3.5 mm gold-plated stereo mini plugs x 2), rubber mat, two rubber bands 

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