Certain Codecs (WMA, and compressed Wave) are difficult to setup as the settings are not guessable. Using CD Ripper it is possible to set the compression settings and read them back from the registry.

Open CD Ripper, set the profile to default, set the encoder and settings as desired. Close CD Ripper then open regedit:

HKEY_CURRENT_USER\Software\Illustrate\dBpoweramp\C DRipper\Profiles\(default)

The settings are stored under CodecCLI_xxxxxxxx

DSP command line is stored under DSPEffects.