Have you heard or tried the cross feed function of the Topping D900? Using the Convolution setting and studio room option, the results are simply amazing. Closed back headphones suddenly sound a lot more balanced. The Grell OAE2 sounds like a multi-kilobuck rig.
- Sample Rate Restriction : Crossfeed only supports 44.1 kHz and 48 kHz sample rates. It does not work with higher sample rates (e.g., 96 kHz or 192 kHz).
- PGGB-RT Compatibility : While standard high-resolution PCM is unsupported, the feature does support PGGB-RT at 107 bits when paired with the 44.1 kHz or 48 kHz limitation.
Here’s an brief explanation of the convolution setting: " Convolution Mode : This is the preferred and more sophisticated option. It uses advanced digital signal processing to simulate Head-Related Transfer Functions (HRTF) and room acoustics for a more natural, speaker-like soundstage."
This software does an excellent job of creating a binaural experience with standard recordings. It would be a very interesting endeavor to see what differences would be generated regarding EQ settings between no cross feed and using the Topping cross feed with the optimum settings.