Not manufactured any more.

The Pioneer S-1ex.   Love them .  Looking for a pair of Pioneer S2-ex’s

[@oldhvymech] decooney, I wonder what those Bohemoths weigh? Mercy I like um!! I know they sounded good, probably still do. :-)

re: AR MGC-1, old article specs show they weigh 150lbs each...heavy!

re: Snell B, shows two active 10" woofers on the spec per speaker. One 10" on  front and there is one more [rear-firing] woofer plus another alloy Vifa tweeter on the rear of the speaker too...,pic below of rear of Snell B. Fwiw, I’ve used those exact same Vifa small 5-6" woofers and same Vifa aluminum tweeter in a custom MTM configuration I did years ago. IMO, It still needed other woofers and/or sub to fill in the bottom end a bit more.

Snell B, rear:

One last photo of the AR-9 from audio-database, and just because its a cool photo.

https://audio-database.com/AR/amp_speaker/ar-9-e.html

decooney, what are the 3 round gizmos below the third driver on the front baffle? 

You got all kinds of goodies..