HiFiMAN was founded in New York city in 2007. Their founder Dr. Fang Bian has a strong background in consumer electronics design and implementation, as well as a PhD in nanotechnology, which he has since brought to bear in the design of his strong product lineup. Since its founding, HiFiMAN has become a world leader in headphone and amplification design and implementation. They have also released award winning products to the IEM and portable player markets. Their Planar magnetic headphones are coveted for their lifelike vocal reproduction and deep textured bass. They also offer a strong lineup of flexible headphone and speaker amplifiers, featuring both tube and solid state amplification. These amplifiers are capable of driving some of the world's most demanding headphones with ease. We are proud to offer HiFiMAN's exceptional quality to our customers.
An affordable alternative in a tube-driven headphone amplifier, the EF2A is a hybrid design, USB headphone amplifier using 6J1 tubes for its input stage and incorporates a Burr-Brown PCM2702 DAC Chip. The EF2A provides USB input and features 16 bit 44.1 kHz performance. Designed for discriminating music listeners who demand performance and value.
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
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