Thank you Fons, very helpful indeed. I will experiment... While you are here I wonder if I might ask you an unrelated but similar topic question. Have you heard of Linea researche's Linea Impulse Response(LIR) filter. They have created a linea phase filter with almost zero delay. There is a whitepaper at http://linea-research.co.uk/wp-content/uploads/LR%20Download%20Assets/Tech%20Docs/LIR_LinearPhaseCrossovers.pdf Do you think this will be something the open source comunity will be able to recreate one day? Would be great for us DIY enthusiasts! Thank you and regards, Alex -- Sent from: http://linux-audio.4202.n7.nabble.com/linux-audio-user-f5.html _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx https://lists.linuxaudio.org/listinfo/linux-audio-user