Thanks Altec Best !

Just to get a second confirmation on what options I got I also sent an email to greatplainsaudio.

The Altec Lansing 604E Duplex speaker elements (the ones I got) has fins on the backside - this means that the 604E model in the Duplex series
only can be mounted from the rear.

This means that all previous messages regarding the bevel along the opening in the 612C cab with the use of the 604E model is useless.

This is because it is NOT possible to mount the 604E speakers from the front.

In the email I got back from great plains it was also explained to me that the bevel cannot be cut out with a rear mounted speaker ( 604E?s ) because in my case the of the use of 3/4 " plywood ; that is too thin - the mounting screws will go through the bevel edge in the plywood front.


- tralalalala