5.K13 R2R signal input, output, gain description

[Input supported by K13 R2R]

K13 R2R supports USB, Coaxial input, Optical input,Bluetooth input, a total of 4 input methods, by rotating the menu knob in main interface to enter the working mode menu for switching working mode.

(The K13R2R could remember the selected input mode still after restart.)

[Output supported by K13 R2R]

The output mode is determined by the OUT option in the settings menu.

PO: Front panel headphone output at the same time, adjustable volume; Rear panel line output no output

PRE: Rear panel line output output at the same time, adjustable volume; Front panel headphone output no output

LO: Rear panel line output output at the same time, fixed at maximum volume; Front panel headphone output no output

(Note: When switching between PO and PRE outputs, the system will independently remember the volume levels for each output mode.)

[Which gain should I use when using headphones]

K13 R2R supports three levels of gain, which could be switched in menu, respectively L/M/H, the corresponding gain is 0dB/6dB/12dB.

The gain adjustment needs to be determined according to your earphones. It is recommended to use H gain for high impedance headphones, M gain for normal impedance headphones, and L gain for low impedance headphones.

(Note: Gain is valid in PO mode and invalid in LO/PRE output mode.)