T62A-40 Crossover Issue
I have an original T series T62A-40. I replaced the electrolytic capacitors last fall, and saw a substantial sound quality improvement. However, recently, the crossover is not working correctly; at nearly any position, 60-75 Hz is at a lower volume than the rest of the 40-100 Hz range. The only way around this is to set the crossover almost at 250 Hz, which is less than ideal. Does anyone here have any idea which component on the amp to troubleshoot? I'm thinking one of the replaced capacitors may be failing prematurely, but I don't want to replace ALL of them again, and they look fine visually. I've also tried cleaning the level and crossover potentiometers. The 4 year old WF641.5 replacement woofer has a very small crack in the surround, but I don't think that would cause this type of issue….
I ordered a new BTA6250D to replace it, but I'd hate to throw the antique away when it may be something simple to repair, and then perhaps I could put it on eBay.