@emergingsoul Yup those old speakers were something else. I grew up with my father's Bozaks. The problem is those large enclosures resonate like crazy. They are musical instruments. The bass drivers of the day were not capable of long excursion with any degree of linearity. Modern speakers use smaller enclosures and smaller woofers in multiples. The low bass is separated out and sent to subwoofers which have very specialized drivers able to push out huge bass in smaller less resonant enclosures.
Many systems are better off without subwoofers, I would venture to say most because the subs are poorly integrated and/or resonate and give themselves away. In a great system with properly integrated subs you would never know the subs were there until you shut them off. If you are reading the specs of your speaker, flat to 28 Hz is at one meter. That is a far cry from flat at 12 feet. Not only this but getting realistic bass in a normal size room requires a 10 dB boost at 20 Hz starting at 100 Hz gradually upsloping. Every system can benefit from subwoofers but to do it right requires digital bass management which most people are not using. Integrating subwoofers with an analog low pass filter will only create a result that a seasoned audiophile will cringe at.