5560
Don’t think you’ll get the bass performance out of these speakers with the SIT3, 3ohms with -50 degrees of -phase angle not an easy load.
Kanta
https://www.stereophile.com/images/1018FoKan2fig1.jpg
Sopra
https://www.diyaudio.com/forums/multi-way/290768-completely-stumped-filter-type-help-post4702715.htm...
https://www.stereophile.com/images/417FSop3fig1.jpg
Cheers George