Home / Products / ALPEN 2-E17K
Model Name/Number ALPEN 2-E17K Color Available Black
Weight 110 g Dimensions 104.1 mm×62.2 mm×12.8 mm
Audio Input Micro USB/Coaxial/3.5 mm jack(COAXIAL adapter attached) Headphone output 3.5 mm stereo jack
Volume Control Digital Volume Control (0-60) Bass Adjustment Yes
Recommended Headphne Impedance 16~150 Ω (Recommended) Power Input DC5V 1A recommended
Battery Capacity 1500 mAh Battery Life >15 h
Output Power > 200 mW (32 Ω/THD<1%) Charge Time ≤ 220 min
THD+N <0.003% (1 kHz) Output Impedance < 1.1 Ω
Frequency Response 20 Hz~20 kHz SNR >113 dB (AUX IN Gain 0 dB/6 dB)
Input Sensitivity 2.7 V (0 dB)
1.38 V (6 dB)
0.68 V (12 dB)
Max Input Level >4 Vrms
Crosstalk >75 dB (1 kHz) Channel Imbalance 0.5 dB
Gain 0/6/12 dB Bass Adjustment Range ±10 dB
MAX output voltage >7.8 Vp-p MAX Output Current >115 mA

Frequency Response diagram of curves.
Test condition:
Aux Input: 200 mV, TREBLE=OFF, BASS=ON
Red curve: Left channel; Blue curve: Right channel; Magenta curve: Left channel.

Frequency Response diagram of curves.
Test condition:
Aux Input: 200 mV, TREBLE=ON, BASS=OFF
Red curve: Left channel; Blue curve: Right  channel; Blue curve: Left channel.

Distortion diagram of curves.
Test condition:

Input: 200mV, Load: 32 Ω
Red curve: Left channel; Blue curve: Right  channel.

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