Hi,
I have a pair of Altec Lansing 604 duplex speakers with crossovers in custom cabinets that I got from my grandfather years ago and I have no idea what the real value may be. They originally came out of a theatre in NYC.
They work, the cones are in good shape and they seem to be the original model because there is no letter designation after the model number on the speaker. But one person did advise me that because of the 20 ohm impedance they were 604A's.
Does anyone have a good knowledge of these speakers?
Thanks,
Richsich