Manuals
Headphone level monitoring
KLANG CANNOT BE HELD NOT RESPONSIBLE FOR THE SETUP AND INCORRECT VALUES ENTERED BY THE OPERATOR OF THE SYSTEM.
Headphone level monitoring
[KKA-97] headphone level prediction and warning as overlay message
CONFIG > INFO > SET offers new menus:
Set Headphone Sensitivity
There are two formats or types of headphone sensitivities used my headphone manufacturers or in reference measurements (More info here…):
- Sensitivity by Voltage in dB/V SPL (no impedance needed)
- Sensitivity by Power in dB/mW SPL + Headphone impedance in Ohms
Sensitivity by Voltage is sufficient to predict the headphone volume (SPL) when the amplifier output voltage is known. Sensitivity by Power is only useful in combination with the headphone impedance as Sensitivity by Voltage can be calculated based on both values.
For HD25 headphones this would be
- 120.4 dB/V SPL
- 109.2 dB/mW SPL @ 75.1 Ohms
For Audiotechnica ATH-M20x this would be as follows:
- 113.3 dB/V SPL
- 100.5 dB/mW SPL @ 51.8 Ohm
Monitor the digital levels or predicted headphone volumes in CONFIG > INFO:
Analog Output Level reference to the output of :kontrollers headphone output in Volts. Three values are provided:
- Theoretical Max. Analog Voltage: This assumes a full level digital output signal @ 0dBFS and considers headphone gain settings and :kontrollers volume knob.
- Predicted Analog Voltage: This uses the current digital level sent to the headphone output and also considers headphone gain settings and :kontrollers volume knob.
- Predicted Peak Hold / Highest Output Level since start: The maximum “Predicted Analog Voltage” since :kontroller was booted.
Set Headphone Volume Warning
Export Headphone Volume Warning
Save current warnings as a file on computer.
Improved Headphone Gain Structure
On :kontroller a +12dB Digital Mix Boost helps to improve the gain structure [KKA-214]. This might be useful when a mix with low levels is sent to :kontroller and the used type of headphones does not offer a high sensitivity.
