QUestion on HK510 (1 Viewer)

[Jay True]

I bought an HK510 about a year ago and i love it , but i have one problem for 15 to 30 minutes upon initial turn on there is a hum from all the speakers this completely goes away after the warm up period im just wondering is this normal ? has anyone else experianced this with the 510 or other hk models ? any feedback would be much appreciated?
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[Anthony F.]

I have a 510 and that doesn't sound normal. Do you have an external amp or pre-amp hooked up to the 510? The only time I had a hum was testing a (mismatched) pre-amp. As a precaution I'd check the speaker connections on both ends. After that it might be time to check tech support. Good luck.

 

[Jay True]

Thanks Anthony thats what i thought , ive checked the speaker wires and i dont have a pre amp , so luckily its under warranty still ...thanks again