Found this in the operating manual. On AM, the Low-Cut frequency can be set to Off or 100 Hz to 1000 Hz in 50 Hz steps and the High-Cut frequency can be set to 700 Hz to 4000 Hz in 50 Hz steps or Off.
The manual doesn't explicitly say it, but I don't find any indication that the roofing filters are active in AM mode.
Thanks - yes I saw that - I also saw in the Spec's they have "15 separate band pass filters"
- but I cannot find any more on them.
It seems like I saw a review that mentioned it has 2 Band Widths for AM Mode (And I would assume they are adjustable)