Craigslist

[djg]

Anyone?

https://minneapolis.craigslist.org/ram/ele/d/saint-paul-set-of-three-vintage-mid/7441377603.html

[fpitas]

Weird

[fpitas]

I saw an old 50s sci-fi movie using a 511 horn as a death-ray machine. So maybe I can't talk too much about weird looking speakers

[Paul Carmody]

Looks like something out of "Logan's Run"

[djg]

Farrah Fawcett looked good in that movie.

[DeZZar]

I've seen stuff like this used in professional audio for auditoriums, halls, schools etc....not in HiFi

[fpitas]

I've seen stuff like this used in professional audio for auditoriums, halls, schools etc....not in HiFi

What advantage is there over a common 8" ceiling driver etc? No room required above the ceiling?

[billfitzmaurice]

Reduction of the high frequency hotspot below the speaker.

[fpitas]

Makes sense

[jhollander]

I'd buy them. Might be fun to experiment with and make something similar to Duevel speakers.

[rumreich]

I looked up the patents (US3,819,005 and 3,819,006) filed in 1974. The inventor, James Westlund of Arizona filed a third related patent US4474258 in 1982. The patents focus on the mechanical construction of the designs and give very little explanation of the advantages or principles of the designs.

[Chris Roemer]

I (myself) can HARDLY wait to read the content that rum creates for all of us to learn by !

[DeZZar]

https://www.amazon.com/Mark-Rumreich...t_bibl_vu00_i1 ??? ¯\_(ツ)_/¯

[Chris Roemer]

Seems ligit? Sorry rum - I thought you were just messin' with us.

[invaderzim]

They make a newer 110B that is sold for paging

https://www.youtube.com/watch?v=29cmYuy8QBk

[djg]

There's probably a subreddit.

[Paul Carmody]

They make a newer 110B that is sold for paging

https://www.youtube.com/watch?v=29cmYuy8QBk

https://www.fullcompass.com/prod/598...r=36058-598533

Wow 96 dB sensitivity! This thing is not messing around.