Help identifying speaker driver from photos please? Possibly ATC?

[digitallake]

Hi there, am trying to help out someone identify some speaker drivers. Have enclosed photo's I was wondering if anyone recognises these please?

 

[burnett]

Hi there, am trying to help out someone identify some speaker drivers. Have enclosed photo's I was wondering if anyone recognises these please?

Volt

http://www.voltloudspeakers.co.uk/

 

[Charles Darwin]

Yep, looks like a Volt to me too.

ATC is one of the very few manufacturers using an underhung voice coil design which requires a much, much larger magnet.