FiiO has also boosted its internal storage capacity from 32GB to 64GB.
To truly improve on the already excellent sound quality of the M11, the M11 Pro employs two carefully implemented AK4497EQ DAC chips based on the AKM VELVET AUDIO architecture. Compared to the AK4493EQ, the upgrade promisesimproved signal to noise ratio and reduced distortion.
You can look forward to more battery capacity as well. The M11 Pro now gives you 4370mAh of battery versus the 3800mAh offered by the original M11. The original M11 offers about 13 hours through the 3.5mm connection and about 9 hours using a balanced connection. So, expect more than that. And standby time has been improved from 50 days to 60 days.
FiiO has employed the THX-AAA amplifier chipset, which is an improvement from the original M11’s OPA926*2.
The M11 Pro is retailing for $749.99 while M11 price is $ 479.99.