This question was prompted because I was watching some Mordaunt Short MS 817 speakers on an auction site. These are a bigger version of my own 815's. An extra bass driver means they go deeper. They looked great value but nobody bid and they failed to sell at £200.( I couldn't afford them). They have elliptical shaped drivers that look a bit odd these days but I think mine sound fantastic. People on here tend to have very recent speakers but elsewhere you see afficiendoes extolling the virtues of ancient Rogers, Harbeths, Tannoys, Lowthers etc. I know there has been a trend towards smaller speakers, maybe because houses are smaller or the need to fit six or seven speakers in a living room perhaps. But are there technical or technological reasons for why a modern speaker may be better?