SDA 1C speaker wire connections

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While recently moving my 33 year old SDA 1Cs, the movers broke the speaker wire plug-ins on the back of one the speakers. I looked at the manuals I have and there is no part number for them. I am assuming these would be standard and easy to change out. Can anyone provide me the part numbers for the replacement parts? Also, where might I get these parts from?

Thanks for the help. Great speakers and enjoyed them for a long time.
jimmyZ

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