New from Fiio the A3 portable headphone amp. With a new look and design, the A3 is better than ever. Based on the previous version of the Fiio E11K, the mini (1/8") headphone jack and auxiliary input have been moved to the bottom of the amp to improve connectivity. On the front of the A3 has the high/low gain and bass boost switches for quick access. The amplifier circuit has been upgraded to the OPA1642 op-amp while the power stage has more juice provided by the AD8397. The 1400mAH rechargeable battery provides up to 16 hours of power to keep your music rocking all day long.