Audio-Technica - AT-PHA100 Portable Headphone amplifier

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Product SKU: AT-PHA100

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Product Details

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  • Internal Rechargeable Battery
  • High- / Low-Gain Switch
  • Five-Stage Sampling Indicator
  • All-Aluminum Enclosure
  • Includes Attachment Accessories
  • USB to Micro-B Cable & 1/8" Audio Cable

You don’t have to settle for wimpy, muddy sound just because you’re on the go. The Audio-Technica 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 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) * Technical support by Microsoft is no longer available.
  • 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") 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") 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)
  • Operating Temperature: 41 – 104° F (5° – 40° C)
  • Dimensions (excluding protrusions): 1.1" (27 mm) H × 3.0" (77 mm) W × 4.6" (116 mm) D
  • 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
  • Common spec for analog/digital without annotation. Fs=384 kHz, 32-bit for digital input

Audio-Technica AT-PHA100 Portable Headphone Amplifier Features:
Specially selected, discrete circuitry enhances the resolution throughout the frequency range

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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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