@nick_l44.1 has measured the DL200 with the new firmware v1.3 in the
DL200 thread.
The filters are
FL1 - Minimum phase slow roll-off low dispersion (ESS #8)
FL2 - Linear phase apodizing fast roll-off (ESS #2)
FL3 - Linear phase fast roll-off (ESS #3)
FL4 - Linear phase fast roll-off low-ripple (ESS #4)
FL5 - Linear phase slow roll-off (ESS #5)
FL6 - Minimum phase fast roll-off (ESS #6)
FL7 - Minimum phase slow roll-off (ESS #7)
Thus, filter 1 and 7 are incorrectly labeled. All others are labeled correctly.