FiiO's new F12 headphone amplifier is a portable headphone amp with the power and specifications you'd expect to find on a bulky desktop amp. It follows FiiO's proven recipe for success, providing high-fidelity through superior design and parts selection, from the hefty brushed aluminum enclosure to the ALPS volume potentiometer and WIMA capacitors you'd find if you were to disassemble the E12.
Features are kept simple, with an emphasis on fidelity. There's an optional bass boost, specially designed to affect only bass frequencies, leaving mid-bass and midrange intact and unmodified. Gain is selectable between 0 dB and +16 dB. The "crossfeed" feature, when activated, sends some of the signal from each channel to the other. The effect is particularly well-implemented in the E12 and results in less listening fatigue and a focused soundstage, especially with older "hard pan" stereo recordings.
The internal lithium battery charges using any USB port and the included USB to USB Micro cable, giving over 12 hours of playback on a single charge.
A full complement of accessories rounds out this incredible package, including a USB to Micro USB cable for charging, a 3.5mm male to male cable for connecting a cell phone or MP3 player, robust rubber bands to strap the E12 to your portable device, and a velour carrying pouch.
Specifications: • Output power: ≥880 mW (32 Ω) • Supported impedance: 16~300 Ω • Signal-to-noise ratio: ≥ 110 dB (A-weighted, AUX input) • THD: <0.005% (AUX input) • Frequency response: 10-20,000 Hz • Signal to noise ratio: >110 dB • Gain: >16 dB (high setting) • Channel imbalance: <0.5 dB• Battery Capacity: 9.7 Wh (880 mAh/11.1V) • Battery life: >12 hours • Charging time <2.5 hours • Dimensions: 4.88" L x 2.58" W x 0.57" H (124 x 65.5 x 14.5 mm).