Help on Polk Audio SDA2


I just inherit a pair of these. The smaller verison with 2 5.5" bass and and 12" passive. The connection is very different. Beside the regular inputs from the amp. There is another connection using a proprietary "interconnect cable", connecting the two speakers together. I don't have the "interconnect cable".
Can I drive them without the "interconnect cable"?
What is the effect without it?
Do you know the sensitivity of the speakers and impedance?
Thank you for any suggestion.
atranz

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