The high performance FiiO E11K (A3) Headphone Amplifier is perfectly portable and can be used with a wide range of music players and mobile phones. It improves audio quality and can handle high-impedance and low-sensitivity handsets. Compared to its predecessor, the E11 is functional even when charging, boasting longer battery life per charge, higher power and last but not least shielded.
The device is equipped with two new generation amplifiers OPA1642 and AD8397. The first one is in charge of great layering of centers and heights, and the second switchable amplifier takes care of deep bass without affecting other frequencies. The entire body is metallic and provides perfect isolation against mobile phone interference or WiFi signal. All controls are located in one place, from the front of the amplifier.
Power is resolved by using a built-in 1400 mAh battery that can operate for up to 16 hours . Thanks to its low weight, flat profile and overall small size it is the ideal companion for frequent passengers.
Parameters and Specifications:
Headphone control capability: 16 ~ 150 ohms (recommended)
Output power:> 270 mW at 32 ohm,> 450 mW at 16 ohm
Total harmonic distortion: <0.004% at 1 KHz
Output impedance: <0.2 ohm
Frequency range: 20 Hz ~ 20 kHz
Noise signal distance:> 108 dB
Gain: up to 11.7 dB
Audio Input: 3.5mm stereo jack
Headphone output: 3.5mm stereo jack
Volume control: ALPS potentiometer
Bass Boost: Two-level
Input: Mini USB 5 V / 1 A
Battery life: 16 hours
Charging time: <4 h
Battery capacity: 1400 mAh
Dimensions: 91.2 x 56 x 13 mm
Weight: 92 g