[Kenwood] TS-450s audio for digital question

[David VE3VID]

Hi and thanks for reading this.
Does anyone know which (if any) of the Kenwood TS-450s'  "power-on" presets might control the audio input frequency response?   This rig is dedicated to digital and I do a couple different "sound-card" modes, (OLIVIA, PSK63/31).  I'd like to experiment with different audio input frequency responses to see how best this rig can be fine tuned in these modes.  
...any helpful advice is appreciated
cheersDavid


    VE3VID          
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