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ADL's compact, mobile X1 HEADPHONE AMPLIFIER - The Audiophile Man
Slightly smaller than an iPhone and twice as thick, the X1 is a sleek, black headphone amplifier that can be plugged into any computer, laptop, MP3 player, phone, cassette player or other music generating device to improve the overall sound quality. Then connect your headphones to the X1, turn the on/volume knob and you are away. There are plenty of options with the X1 including, at one edge, a headphone socket, Line In (to connect to a computer, for example), a switch to match your headphone type to the X1, a USB mini-B socket (to connect to a computer or to use as a battery charger) and the on/off/volume knob. On the opposite edge is an input selector switch to recognise iDevice connections, a multi-usable socket which can be used for an optical cable to connect to an amplifier or another headphone socket and a USB A socket for iOS devices. On the top of the chassis are six blue LEDs which light when the X1 senses what resolution file you are currently playing. Firstly connecting the X1, via the Line-in connector, to my SSD-powered Macbook via the headphone socket, comparing it with my reference Just Audio AHA-120 (£350) and …