SONY / PHA-2A

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The PHA-2A is a portable headphone amplifier featuring a 4.4mm balanced headphone jack. Enjoy the high-quality sound of a balanced connection with ease. The DA converter uses the ES9018K2M for its S/N ratio and jitter resistance, while the amplifier section is equipped with the TPA6120.

■Type: Portable headphone amplifier (high-resolution compatible)
■Compatible devices: PC, WM, Xperia, iPhone, iPod
■Frequency response: 10-100kHz (analog section)
■Supported impedance: 8Ω-600Ω
■Supported sampling frequency/bit depth: Up to 192kHz/32bit, DSD2.8MHz, 5.6MHz (5.6MHz for Windows only)
■Maximum output power:
- Balanced connection (approx. 320mW + 320mW, 32Ω, 1% distortion)
- Normal connection (approx. 100mW + 100mW, 32Ω, 1% distortion)
■Audio output terminals:
- Headphone jack (φ4.4mm balanced standard) x 1
- Headphone jack (φ3.5mm stereo mini) x 1
■Audio input terminals:
- Digital (USB microB, USB Type A)
- DC in (USB microB)
■Power Supply: DC 3.7V: Built-in rechargeable lithium-ion battery
■Battery Life: Approximately 5 hours (Digital/Balanced Connection)
■Charging Time: Approximately 8 hours (When using a PC), approximately 5 hours (When using AC-UD20)
■Dimensions: Approximately 80 x 23 x 133 (Dimensions excluding maximum protrusions), approximately 80 x 24 x 133.5 (Maximum Dimensions)
■Weight: Approximately 290g
■Accessories:
・Digital cable for Walkman
・Digital cable for Xperia
・Micro USB cable
・Silicone band
・Sheet