The Stage was smallest (and cheapest) Apogee speaker when it appeared in the middle of 1990.

The 2 drive unit used dual sandwich etched ribbons, doing this Apogee managed to get a much improved sensitivity. Impedance was still relatively low at 3ohms but it was considerably easier to drive than any previous Apogee’s.

The drive units on the Stage used Mylar as the backing material, as opposed to Kapton. The original ribbon tweeter was a double laminate of aluminum and Mylar, with 3 segments on the front and back. This was changed to a single sided 6 element etched Kapton ribbon around 1991. According to someone who used to work at Apogee, this was redesigned as heat problems over time could cause a front to back short. If you own the version with the earlier ribbon tweeter, don’t panic, the failure rate was small – presumably through driving at very high levels for a considerable time.