FiiO just dropper the curtains on the M11 PRO Digital Audio Player.
The most important differences to their wildly popular M11 are as follows:
1. DAC chips are upgraded to dual AK4497EQ
2. Adopted THX-AAA amplifier chipset (YES Please!)
3. Increased ROM from 32 GB to 64GB
4. Increased battery capacity from 3800 to 4370mAh
We already seen multiple Dual AK 4497EQ DAP, but not a single one carries the ultra linear and high-performance THX AAA chips that I praised in my Benchmark HPA4 review.