HIFIMAN EF2A is a hybrid USB headphone amplifier using 6J1 tubes as input stage. USB input support 16 bit, 44.1 kHz.
HIFIMAN EF2A is a hybrid USB headphone amplifier using 6J1 tubes as input stage. USB input support 16 bit, 44.1 kHz.
Input Impedance: 47k
Output Impedance: 32-300 Ohm
Output at 32 Ohm: 3 v, 320 mw
Output at 150 Ohm: 6.2 v, 256
Frequency: 20-20khz +/- 0.2db
S/N: 95db
DAC Chip: Burr-Brown PCM2702
Tube: China 6J1 * 2 pcs
Input Voltage: 16 v to 18 v; 500 mA
Power Supply: 110 v or 220 v
Size: 14cm*8.5cm* 4.5cm or 5.6"* 3.4" * 1.8"



