Sorry for the late reply. I'm onto other projects! Building another 901 will have to wait. If anyone wants to build another cabinet I have some 901 series 1 drivers I will donate along with the clone cabinet. Some of the old series 1 drivers have stiff surrounds that will need teasing.
Restoration - replication of 2/3 a set of a early 901 system
in Bose
Posted
I sent a pm about the extra box.