IMF woofer closeups

Thanks to Audiogon member Dipolemann, I have a few closeups of oval woofer similar to the ones used in the RSTL. These are actually of the IMF 128/20, which are used in some of the later IMF models, but they are visually very similar to the 3021GT 01 and 3021GT 02 used in the RSTL.

IMF 128/20 front view

IMF 300mm x 210mm woofer - front view

IMF 128/20 - rear view

IMF 300mm x 210mm woofer - rear view