Yes, it would have been a very worthwhile upgrade. In their day, the Bozak aluminum midrange drivers were some of the best you could buy. By adding an 8 ohm B209 midrange and an N-10102A X-over, the B300 became the three way model B302A...an excellent sounding loudspeaker. Plus, all their their cabinets were furniture grade. You can often find the necessary parts on Ebay.