@jsalerno277 in fact I Responded to you Directly ! back in 1973 KEF was the first loudspeaker firm in the world to implement the use of computers in loudspeaker design and measurement. The LS3/5a was the original mini monitor, inspired by KEF drivers and designed at the BBC, that transformed the audio experience in 1975. as an retired BBC sound engineer we have had massive benefits having those monitors various applications on the other hand some of my sound engineer colleagues & I always admired capability & purity of Mighty American made Altec monitors. not sure why you do not understand uploading Altec video on you tube ? frankly you do not have to be brain surgeon nor rocket scientist to figure it out. Here it is another Altec video ,,,,https://www.youtube.com/watch?v=bI0PeIfivCo&t=101s&pp=ygUcaHR0cHM6Ly95b3V0dS5iZS9iaTBwZWlmaXZjb9IHCQnHCQGHKiGM7w%3D%3D
Have fun and enjoy whatever you do .

