Back in the 70s (I don't know what classic series of speakers these are clones of) JBLs were known for cleans. People put them in Twin Reverbs for sparkly clean. Very popular for C&W artists. EVs were put in by rental companies because they were virtually indestructible but didn't sound like much. What we usually used were Jensens, CTS, the ocassional Utah and for Marshalls..... Celestians of course. For Vox Fanes and Celestians. If it is for PA application, again JBL for sound quality and EV for reliability. Anyway, my old perceptions.