I own the Lyngdorf TDAI 2200 and can confirm that at least some of the Lyngdorf products allow users to choose among many crossover types and to choose the specific crossover frequency. I'm not sure though which of their several products have this functionality, but would think it is covered in the product descriptions on their site.
As a side note, I was wary of, but am impressed with the AD conversion that is an option on the TDAI 2200. The amp itself is wonderful as well.
Depending on how you address the crossover issue, D-Speaker's Anti Mode 8033 is a cost effective way to address time and frequency problems below 140 Hz (not sure about that cutoff but somewhere in that area).
As a side note, I was wary of, but am impressed with the AD conversion that is an option on the TDAI 2200. The amp itself is wonderful as well.
Depending on how you address the crossover issue, D-Speaker's Anti Mode 8033 is a cost effective way to address time and frequency problems below 140 Hz (not sure about that cutoff but somewhere in that area).