Pair of original Altec diaphragms for 604B through 604D 16 ohm duplex HF drivers, as well as 802B, 802C, and 802D 16 ohm HF drivers. These have been stored in a foam-lined box in a temperature controlled environment for probably 25 years. They are original Altec 20275 aluminum voice coil 16 ohm units in near mint condition. I personally removed these from a custom home installation where they had been used very lightly since new. You won't find a nicer pair. $700
