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My guess is that the speaker box is the problem. I got the box from J&R - the maker is Sima. The wiring connections are to terminal blocks which then snaps into the speaker box. I am thinking there could be a bad connection between the terminal block and the speaker box. This is as close to a...

I spoke with the HK Tech Supervisor and they are going to send me a 445 B stock unit. I am thinking about utilizing a second receiver instead of using the multi-room feature. The short seems to be there - both replacement receivers have fried after making adjustments to the speaker selector box...

I received another replacement receiver yesterday and hooked it up last night. Within about 10 minutes it died. The whole reason I bought the receiver was for its multi-room function - I wired speakers through out the 1st floor of my house. I have the multi-room speakers connected to a Sima...

I made my own with a Radio Shack coax cable and coax to RCA connectors. It cost me about 12 bucks and works extremely well.

The units stay in protected mode when everything is disconnected. HK Tech Support said there could be a short happening with the speaker wires? I've got everything connected via banana plugs so I am not sure how that could happen.

Has anyone had any problems with HK 335 or 340 Receivers going into permanent "Protect" mode which effectively kills the receiver. My HK 335 had some sort of issue after little over a year and the factory replacement (a 340) did the same thing after about a month. I have not had any electrical...