What kind of speakers are these?

[myfirstamplifier]

I’m trying to find the plans to build some small bench speakers like this. Anyone know what they are?



photo from Papas bench!

 

[Wik]

it seem cpu casing over at the top of speaker

 

[Galu]

They could be compact transmission line speakers.

 

[Richard Ellis]

Yep, those are transmission-line enclosures just flipped upside down...

------------------------------------------------------------------------------------------------Rick...

 

[Nelson Pass]

I had a pair of those long ago- trying to remember the name... maybe The Cable Company...

Those are upside down.