The "desktop/portable dual power supply modes" as featured on the portable desktop-grade player M17 and the portable desktop-grade amp Q7 have been well-received by the audiophile community, which is why we sought to put this technology on other products. Now, with the implementation of the dual power supply modes onto the M15 with its more ergonomic design, the M15S is the ideal combination of portability and high performance.
Features:
Desktop/portable dual power supplies
High-performance ES9038PRO DAC
QCC5124 with full Bluetooth format support
Qualcomm 660+Android 10
1200mW+1200mW continuous output power
DK3S dock included
Five gain levels Six operating modes including Roon Ready
The new M15S starts a new chapter in the FiiO high-end, sharing the same technologies as the portable desktop-grade M17 player and the portable desktop-grade amp Q7 that give you desktop-level performance in a portable package - including desktop mode, dual power supply modes, and five gain levels.
Dedicated desktop mode
When in the dedicated desktop mode and under USB fast charging, the M15S will transform essentially into a desktop device and work completely without the battery. That is, under this mode the battery will neither be charged nor discharged, preventing premature battery degradation.
Desktop/portable dual power supply modes Robust performance everywhere
The M15S not only features the "desktop/portable dual power supplies" as seen in other FiiO products, it is also equipped with an automatic "auxiliary DC power supply" - the M15S is able to automatically recognize when fast charging* through USB is being used and automatically switches to use the highest-voltage power supply, leading to an increase of 26.67% in power supply for even more power output. Even when not using the fast-charging adapter, the M15S can still automatically switch to a higher-voltage power supply that is enough to drive most headphones.