Hello
I'm an intermittent lurker and 1st time poster looking for advice. I purchased the pair of 2C from a dealer back in the 80s and I've always loved them and they have been trouble free. I've been away from audio stuff for some time -home projects, career and vintage Alfas. Recently I started hooking up my old equipment again.
My Hafler DH101 pre amp has died so I hooked up my old Kenwood AV receiver KRV 9030 and was glad to be running the Vandys again. After a year of intermittent listening a slight hum emerged on one speaker and it was not noticeable when listening at volume. Several months after that one day the hum became noticeably louder. You still really can't hear it at volume but in between tracts or when you are loading the CD player it's there and its worrisome.
I've swapped cables and the issue persists no matter the channel so the fault seems to be with the speaker and I'm guessing the crossover network. My experience is limited in electronics but I'm recalling if I'd had no sound to look at the caps first when evaluating. With a hum, what is the most likely suspect? I'm no engineer but I've heard some sample hums on forum sites and it sounds to my untrained ear like a 60hZ thing and not an open loop.
The Vandy's design makes crossover access difficult and I don't want to start wildly taking stuff apart. My gut, however tells me the cross over needs to be evaluated regardless. A visual may ID burnt components and then its on to bench testing. I'm open to suggestions and your experience. If its bad resistor or another component, I'm thinking both crossovers need to be brought back at the same time-resistors, caps etc
Thoughts and suggestions appreciated
thanks
steve
I'm an intermittent lurker and 1st time poster looking for advice. I purchased the pair of 2C from a dealer back in the 80s and I've always loved them and they have been trouble free. I've been away from audio stuff for some time -home projects, career and vintage Alfas. Recently I started hooking up my old equipment again.
My Hafler DH101 pre amp has died so I hooked up my old Kenwood AV receiver KRV 9030 and was glad to be running the Vandys again. After a year of intermittent listening a slight hum emerged on one speaker and it was not noticeable when listening at volume. Several months after that one day the hum became noticeably louder. You still really can't hear it at volume but in between tracts or when you are loading the CD player it's there and its worrisome.
I've swapped cables and the issue persists no matter the channel so the fault seems to be with the speaker and I'm guessing the crossover network. My experience is limited in electronics but I'm recalling if I'd had no sound to look at the caps first when evaluating. With a hum, what is the most likely suspect? I'm no engineer but I've heard some sample hums on forum sites and it sounds to my untrained ear like a 60hZ thing and not an open loop.
The Vandy's design makes crossover access difficult and I don't want to start wildly taking stuff apart. My gut, however tells me the cross over needs to be evaluated regardless. A visual may ID burnt components and then its on to bench testing. I'm open to suggestions and your experience. If its bad resistor or another component, I'm thinking both crossovers need to be brought back at the same time-resistors, caps etc
Thoughts and suggestions appreciated
thanks
steve