I have a pair of Sonus Fabers Venere 2.5 and found similiar issues controlling bass roll off. I have them a thick carpet laying on a concrete slab foundation. I corrected issues by going to my local granite stone company and had them cut and polish 2-16"x16"x1.5" 20 lbs dead weight per platform plinths and placed the speakers with the spikes protectors on platform with equip spikes and found not only tightening the foundation bass but had a great improvement overall on the mid range too!
I also bi-amp with a Krell KSA 250 on low and Audio Research VT 130 se on the high and all I can say was wow now these Venere's are really performing with a huge sound stage and very black deep sound. Overall like a total different performance!
Enjoy music!
I also bi-amp with a Krell KSA 250 on low and Audio Research VT 130 se on the high and all I can say was wow now these Venere's are really performing with a huge sound stage and very black deep sound. Overall like a total different performance!
Enjoy music!