I'm looking reference for DSP Manager setup, share your setup if you don't mind 
Started from me, the setup's:
★ Dynamic Range Compression: Disable
★ Bass Boost: Disable
★ Equaliser: Enable
★ Loudness Compensation: Disabled
★ Headser Virtual Room Effect: Disabled
★ Headphones: Samson SR950
Started from me, the setup's:
★ Dynamic Range Compression: Disable
★ Bass Boost: Disable
★ Equaliser: Enable
★ Loudness Compensation: Disabled
★ Headser Virtual Room Effect: Disabled
★ Headphones: Samson SR950