They are better than the Altecs, in this application at least. From what I've found online, they were made to compete with the Altec speakers back in the day.
Very good drivers, as are the tweeters.
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson