Rear channel filtering and Dolby Surround 2

[Fr4nz]

Hi guys. As we all know, rear channel filtering is very useful when downmixing to Dolby Surround. Do I have to use it when i downmix to Dolby Surround 2?

[Fr4nz]

Okay I found that is useless to check or leave unchecked "rear channel filtering" when you select Dolby Surround 2 downmixing: outputs will be bit-equal. :)

[nuked]

Suposedly dpl2 supports full bandwidth rear channles. I don't know if DPL1 is normally limited by the encode or by the decode though.