MoDaCo's very own Sector has begun tweaking the HTC HD2, and has just released a newer version of the SRS WOWHD application, to help you get the sound settings just right.
It's been released and tested on the HTC HD2 and allows you to adjust and tweak 3DEffect, Boost Sound, Bass, Treble and save them to Presets.
1. Install the CAB to \Device.
2. DO NOT ACCESS THE PROGRAM.
3. Soft reset your device.
4. Access it's settings from Settings -> System -> SRS WOWHD or Start -> SRS WOWHD
Version 2.1 change log:
+ Ideal settings for better listening experience thanks to donalgodon.
+ Internal stereo stays on after restart.
+ Added shortcut to Programs and changed icon to both Start/Programs and Settings/System locations, thanks to VeEuzUKY.
You might need to tweak it a bit to match your preferable profile. Please share your settings.