Peter Snell's patent from the mid 70's had a rendition that predicted the floor speaker inneraction and the geometry to overcome this problem. Mr Snell's patent is a thing of beauty and describes in detail a speaker and many of its boundary reactions. Some models worked out to be more effective than others.
Mr Snell actually brought a pair of his new speakers to my home for a sales meeting to demo how this new concept worked in a real life situation. The cabinet was tilted back at a perceived angle of 30 degrees and having both the woofer and the tweeter almost at floor level with an angled ramp that attached to and extended outward and down ward at an angle that met the floor surface. The group on hand broadly decided the image was on or near the floor. Very much the same as I heard at Stanwal's house using the Mapleshades under Stan's then speaker of choice ... only 35 years later. Tom
Mr Snell actually brought a pair of his new speakers to my home for a sales meeting to demo how this new concept worked in a real life situation. The cabinet was tilted back at a perceived angle of 30 degrees and having both the woofer and the tweeter almost at floor level with an angled ramp that attached to and extended outward and down ward at an angle that met the floor surface. The group on hand broadly decided the image was on or near the floor. Very much the same as I heard at Stanwal's house using the Mapleshades under Stan's then speaker of choice ... only 35 years later. Tom