The drivers do appear to be all original equipment. The woofers are the usual suspects: cast frame RCA 34633. The compression drivers are the OEM 902 ferrite units.
As VOTT says, the woofers would be expected to be refoamed, and indeed that appears to be true. I think they were done professionally, it looks to be very good work on both woofers. Some pro sound shop in NYC must have done them, as they put their stickers on there. Good news is that original cones and VCs appear to remain in place and look to be in great shape. Can someone with original drivers let me know what the cone number is?
Both woofers sound good. One VC shows a DCR of 8.0, the other 4.0
The HF drivers both show good DCR. As mentioned, they are the OEM 902s with no back cover and the loading caps. On one of them, I heard the tell-tale occasional buzzing sound and upon inspection the phase plug is loose. I suppose I will need to do a little research on how to shim it and glue it down. Maybe remove the loading caps and replace with felt while I'm at it?
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