RD-0194/ SRS 2.3 (sl2000) upgrade

I ordered 6 RD0194 to upgrade the SL2000's in my SRS 2.3's. They ring. It's not just one. I've swapped back and the ringing disappears. It's frequency specific. So far it's Dire Straits - Telegraph Road, and also Mannheim Steam Roller - The Holly and the Ivy. I'm extremely disappointed as this is the direct replacement speaker. The problem is, one of the original Sl-2000's is dead. It just stopped working, and shows open when I took my VOM Meter to it. That's what prompted the upgrade. You can't just change one given the age of the others and the difference there would be. Is this common or is it something else?

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