Is my 1611 broken?
The last few weeks I have noticed a hissing sound coming from my speakers when using my 1611. I at first was thinking I didn't connect everything up correctly (loose speaker connection perhaps), after all I just recently moved into a new house and when i set up the 1611 in my bedroom I did it kinda quick and dirty. Yesterday I finally had some time to investigate the issue and what I found is that there is hissing (not hum, hissing static like white noise) that is coming from the speakers no matter the source. I followed some basic troubleshooting steps as in disconnecting all sources and adding one back in at a time, reset the microprocessor and re-ran audyssey, tried different outlets and power strips, even different hdmi cables and nothing remedied the issue. I did discover by complete accident that if I set the 1611 to "direct" mode there is no hissing detectable from the listening position (apprx 7 ft from speakers).
The hissing noise is very noticeable when I have source on with no content playing, ie the home screen on the PS3, the receiver defaults to mult ch in and hissing is very noticeable at reasonable volume (-30 - -20 on the avr) from 7 ft away. The only way to make it stop hissing is to run it in direct mode. All other surround formats and audyssey settings produce the hiss. When playing content, say dd 5.1 from a dvd, the hissing is very slightly noticeable in the background in all but direct mode. Hitting fast forward thus stopping sound from the disc and the hissing is very noticeable. Also, it may be my imagination, but it seems that the longer the avr is on the louder (slightly) the hissing is perceived, but again it may be my imagination.
Dish Network HD DVR (cannot recall model number) connected via hdmi.
Older Pioneer CD Player (connected via optical)
Sony PS3 connected via hdmi.
I have also connected other sources from my main HT set up to see if there was a difference, sources included a second PS3, and xbox and a denon blu-ray player, and no change. I have tried all the HDMI inputs on the 1611 and no change. I have not tried connecting anything by utilizing analog connections.
Polk Monitor 50's
Polk CS1 center
I also have had my monitor 30s connected to the main left and rights and hissing was present.
My warranty is up Jan 1st and I plan on calling Denon on Monday to inquire about my issue, but wanted to get some feedback here to see if there was anything I may have missed in my troubleshooting.