SONY / PHA-2

Portable headphone amplifier that can play DSD (Direct Stream Digital).

■ Portable headphone amplifier
■ Decoder: USB audio, iPod/iPhone/iPad/Walkman
■ Frequency characteristics: 10 Hz to 100 kHz (AUDIO IN input)
■ Maximum output: about 165mW+165mW (8 Ω, 10% distortion) *1
■ Audio output terminal: Stereo mini (PHONES x 1, LINE OUT x 1)
■ Audio input terminal: USB (micro B x 1, mini B x 1, A x 1), stereo mini (LINE IN x 1)
■ Power supply: Built-in lithium-ion rechargeable battery (DC3.7V)
■ Battery life: about 17 hours (when analog is connected), about 6.5 hours (when digital is connected)
■ Charging time: about 7 hours (when using a PC), about 3.5 hours (when using AC-UD20)
■ Outer dimensions: about 68 mm x 29 mm x 140 mm (width x height x depth)
■ Weight: about 270g