FiiO A3(E11K) OPA1642+AD8397 HiFi Portable Headphone Amplifier
All aluminum-alloy body and chassis
Way more power behind new design
Description
All-new appearance
All aluminum-alloy body and chassis adds street cred and increases shielding from EM interference.
Visual operation experience
Comes with sexier and more reliable toggle switches.
Improved sound performance
Pre amplifier OPA1642: serves as the voltage amplifier， with great layering and medium and
high frequency extension.
Power amplifier AD8397: serves as the current amplifier， with great control of low frequencies and smooth drive ability.
Fully discrete bass circuit design
Bass On: Boosts bass effect without influencing the overall sound field.
Bass Off: Bypasses bass circuit， decreases interference and noise floor so as to ensure the purity of the sound quality.
Reinforced battery capacity
Bass Off: Bypasses bass circuit， decreases interference and noise floor so as to ensure the purity of the sound quality.
Specification
Power supply: Mini USB port
Maximum output power: 450mW (16Ω)，
Frequency response: 20Hz-20KHz
Signal-to-noise-ratio: more than108dB
THD: less than 0.004%
Charging time: - 240min
Opetation time: Up to 16hr
Recommended earphone impedance: 16-150Ω
Dimensions: 91.2mm * 56mm * 13mm
Weight: 92g (with battery)
A letter from Fiio:
Dear respected customers，
With our ever-expanding product lines， there is a need to reform our naming rules for products. Thus we have adopted new standardized naming rules from the beginning of 2015， to make names more logical and memorable to make a better impression on potential customers. All future new models of amplifiers (excluding USB-audio-decoding multifunction units)， will follow the naming pattern of Ax， where A stands for Amplifier and x is a number representing its position within FiiO’s amplifier product line.
For the E11K， after the clearance of existing stock， it will be renamed “A3” from June. Since it’s about renaming， there is no change to the unit itself， just a change to the name and removal of the mountain name “Kilimanjaro”. Moreover， in order to bring convenience to those who want to use the X1 together the A3， we have made the A3 available in silver as an option.
Kind note: A3 Black will have the same brushed aluminum finish as existing the E11K， while the A3 Silver will have a sandblasted finish matching the X1.
Best regards，
FiiO
