K19's signal input and output method description

Input Supported by K19

K19 supports USB, optical, coaxial, HDMI,HDMI ARC and Bluetooth input, a total of 6 input modes. The input modes can be switched via the menu knob, infrared remote control or FiiO Control APP.

Input priority

1. USB input: USB port in front panel > USB port in rear panel

2. The other input modes can be switched via the menu knob, infrared remote control or FiiO Control APP.

Output supported by K19

K19 supports 6.35mm single-ended output, 4.4 balanced output, XLR4 balanced output, RCA line output (LINE OUT), balanced line output (BALANCED OUT), coaxial out, optical out, HDMI out, a total of 8 output methods.

Output priority

1. [PO]Front panel output: 4.4mm, 6.35mm and XLR4 balanced output, with the same priority, can output at the same time, but it is not recommended to use it for a long time at the same time, especially when the impedance of the two earphones is quite different. The output volume may be too loud and can cause the low-impedance headphones in it to overload and cause damage.

2. [LO] or [PRE] rear panel output: LINEOUT and BALANCE OUT can be output at the same time.

3.[PO+PRE] the output ports in the front and rear panels have output at the same time; the volume is adjustable.

4.Coaxial and optical outputs with no control switch are always in the output state. The volume of optical/coaxial output is not adjustable. You can adjust the volume of the decoder device connected to the out port.

Which headphone port on the front panel has the best sound quality?

Theoretically, the XLR4 balanced port is not much different from the 4.4 balanced port. And the balanced output port sounds more balanced and has more power than the 6.35mm port.

Different headphone ports with different headphones will have a different taste. The sound quality is not good or bad absolute distinction. It is recommended to try and compare by yourself.

The relevant recommendations for connecting speaker:

1.Generally, when connecting to the amplifier or active speakers, please adjust the volume of the amplifier or active speakers to low level before connecting. Gradually adjust to suitable level after connecting to avoid popping sound.

2. In LO mode, the output volume is max and can not be adjusted . please adjust the volume of the amplifier or active speakers to low level before connecting. Gradually adjust to suitable level after connecting to avoid popping sound.

3. When connecting to speakers with no volume adjustment, it is recommended to use PRE mode in K19.