A3
Portable Headphone Amplifier
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
Can work while charging; 1400mAH built-in battery ensures more than 16hrs of battery life
Specifications
Power supply: Mini USB port
Maximum output power: 450mW(16Ω); 270mW(32Ω);
Frequency response 20Hz~20KHz
Signal-to-noise ratio: ≥108dB THD: <0.004%
Charging time: ~240min.
Operating time: Up to 16hr.
Recommended earphone impedance: 16~150Ω
Dimensions: 91.2mm x 56mm x 13mm
Weight: 92g(with battery)
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