nice.
so similar to my impressions. obviously the bass horns are not covering most of the FR, but still a good result for zero dollars. just there for the finding. we are on to something. passive speakers like grounding.
Actually Cessaro bass horns cover wider range of frequency ... from 30hz to my xover point of 130hz. The dont go down way low like your bass towers but they are quick. The designer said they look a bit imposing but dont work like subs. My bass horns are backload. I wish I could have a frontload but space doesnt allow me. The amplification of the bass horns are inside the main speaker towers. Here is a picture of my bass horn.
Tang