No single transducer can handle a full 20 to 20khz frequenc. In the olden days, acceptable single driver to wideband drivers, typically covers from above 50's to near 16 khz signal, something that specs out like 80-16khz, or 70-15khz, enough to have a crossoverless mid; and no associated phasing problems than typical designs that employ crossover. Some people attest too that these driver units are better off partnered with tubed electronics. System integration? most likely.
What are the specs of a full range speaker?
I've noticed that this term is used pretty loosely around here and I'm wondering what you think of when you read it in an ad. What does "full range speaker" really mean? Is it 20Hz to 20 Khz? I've always considered it to mean a speaker that reaches down into the 30s with some weight. What's your interpretation?