"1997 Vintage" REL Powered Subwoofer started making loud humming
I have had a Stadium II REL powered subwoofer in my home theater system since I bought it new in 1997. Over the past weekend, with absolutely no changes to my system, it started making a really awful humming noise which has gotten worse over the past several days. It's unplugged now.
I took the input cable off, no change. Cycled the power several times, and also ran a extension cord from another plug to it including a new power cable, same noise. Any ideas? I was thinking it was aging issue with perhaps cracked/dried capacitors(?). I have contacted the factory to see what they say. Any thoughts to cause? Is this something you would attempt to repair, or move on to new?
Thanks in advance,