7) Multi-function button: you can customize the multi-function buttons to select a frequently
used function for one-button quick start.
For example, you can set the button to add to favorites, random play, play/pause, switch
filter, switch equalizer, delete the currently playing song, switch to USB DAC mode, switch to
Bluetooth mode, no function, etc.
8) Hold switch: you can customize it. After turning it on, the buttons and knobs that are in the
off state will be locked.
9) DC power port: 12V DC power supply port, after connecting to the power adapter and
turning the switch to DC, the hidden gain mode---enhanced over-ear headphones mode will
be triggered
10) Micro SD Card slot:supports one TF card (micro SD card), theoretically up to 2TB
expansion.
11) USB 3.0 port: supports data transfer with computers, USB DAC, USB Audio output, USB
OTG, USB charging and other functions
12) USB HOST (2.0): supports USB Audio output and USB OTG, but does not support
functions such as connecting to a computer or charging.
13) Coaxial in/out: the M17 coaxial port supports output and input of coaxial signals.
14) 6.35mm headphone out:supports 6.35mm headphone output.
15) 3.5mm headphone/line out:supports 3.5mm headphone/line-out output.
16) 4.4mm balanced headphone/line out:supports 4.4mm balanced headphone/line-out
output.
17) 2.5mm balanced headphone out:supports 2.5mm balanced headphone output.
18) Volume knob: the M17 uses the volume knob to adjust the volume by default. At this
time, the volume button cannot adjust the volume. If you need to switch, you can enter
Settings-Global, click "Volume Adjusting Mode", select "Adjust by Volume button" or "Adjust
by Volume Knob".
The priority of the M17 output port
1. When the PO 3.5mm, 6.35mm, 2.5mm and 4.4mm are output at the same time, the output
will be given priority in the order of insertion; if the 6.35 and 3.5 earphones are inserted at
the same time, both ports have output, and the status bar will display two icons (The same is
true for LO); 2.5 and 4.4 are the same as 6.35 and 3.5.
2. When both balanced and single-ended headphones are plugged in, the first plugged-in
headset will have a sound, and the status bar will only display the first plugged-in headset
icon.
3. The SPDIF output is controlled by a separate switch. The analog output (PO/LO) and
SPDIF digital output can be output at the same time.
