crossover function still not working after 14 years correctly

[Music or sound]

No was never working correctly. More than decade ago I had several conversations with Devialet and they said they will improve their slopes but they never did. One can adjust the crossover points separately for high and low pass that -6dB is at the desired crossover point specific for a selected crossover order. That is only possible if one can measure the output best at the speaker. If you look at my measurement example slope is correct at 350Hz but below it it has much shallower slope no matter what Q design it is.

Anyhow after an in-house demo I ordered a Mola Mola DAC and will at least for now use that kit crossover.