My Chora 826 just completely stopped working. The terminals gave an OL reading but the bottom woofer I removed shows 8ohms. I can't see anything visually wrong with the crossover. I'm tempted to turn my volume way down and bypass the crossover. Each driver has its own leads from the crossover so I wouldn't think the problem is down the line. I have always wanted to upgrade a crossover. But hell as far as I know it could be anything. I tried multiple channels and cables and it's definitely the speaker