Not to derail this thread about the new speakers, but....
I purchased a pair of 4311b in (I think) 1976. I was still in high school, I know that, with money from my 1st part time job. I paid $550 and purchased from a dealer. According to the CPI calculator, that's equivalent to $2450 for a pair as of 2 months ago. You can see the loss of buying power in just a few years in the 70s.
Also, there isn't a consumer wage calculator that I see to tell us how much less money hourly wage earners are actually making based on our wages and benefits (lost insurance, pensions, etc) of that time to today. Anyone who has worked with their hands in the craft trades or manufacturing since that era will confirm the loss of buying power, though.
And, I assume, these speakers are completely manufactured in another country by folks aspiring to have an American(ish) middle-class lifestyle someday too. Nothing wrong with that, except in the 70s the money paid for a pair went to working Americans who could have probably afforded a pair and the money stayed in their local economy, blah, blah, blah.
You have to compare apples to apple, not apples to oranges. I'm sure they're fine speakers. If there was a corporate profit calculator on the interweb, I imagine we'd see the new speakers contributing more profit than the old ones.