byoung
Well-known member
Have you ever heard of just one side of a DPDT relay failing? I've been going round and round with TC electronics tech support about my BM6a's that have the well know tweeter dropouts. I'd heard the problem could be the speaker protection relay, and tech support, while they still won't give out a schematic or outwardly admit these speakers have/had some issues, finally told me what the common issues were, first being the relay, second cold solder joints in the HF section, third chip MOSFET/HEXFET failure.
I popped open the speaker to check and resolder any suspect connections. I Thought it odd when I noticed a double Pole relay, I guess I thought there would be 2 single pole relays, and thought to myself...can one side fail and the other side still work? My guess with all the vibration that their is most likely a bad solder joint, especially with the symptoms, but I guess it could be any of the options I was given. I was most curious abut the relay possibly only having one side fail, I've never seen this before. I have yet to test it either.
I popped open the speaker to check and resolder any suspect connections. I Thought it odd when I noticed a double Pole relay, I guess I thought there would be 2 single pole relays, and thought to myself...can one side fail and the other side still work? My guess with all the vibration that their is most likely a bad solder joint, especially with the symptoms, but I guess it could be any of the options I was given. I was most curious abut the relay possibly only having one side fail, I've never seen this before. I have yet to test it either.