I've lived with this for a while, but thought I'd post for suggestons. My set-up is a C-2 Pre/pro, Marantz SA-11S1 SACD player connected via balanced inputs, a Denon DVD 5910 connected via RCA inputs or coax. My main amp is a Pass Labs X-250 and front speakers are Revel Ultima Studios.
When I set the C-2 for balanced inputs (to play CD's & SACDs on the SA-11S1), the system is very quite - no buzz or hum through the speakers. However, when I switch to coax or the RCA inputs to listen to CDs or play DVDs, there is a signifivant buzz/humm heard through the speakers. This is not affected by the volume control, and happens whether the 5910 is connected or not. I have tried different power cables & removing the grounding pin on either the C-2 or the amp, but it makes no difference. I have also tried unhooking the input from the cable system as I have seen that it is often the cause.
Does anyone have any suggestions? Many thanks. Maybe I just have a noisy C-2 (except when balanced)...
When I set the C-2 for balanced inputs (to play CD's & SACDs on the SA-11S1), the system is very quite - no buzz or hum through the speakers. However, when I switch to coax or the RCA inputs to listen to CDs or play DVDs, there is a signifivant buzz/humm heard through the speakers. This is not affected by the volume control, and happens whether the 5910 is connected or not. I have tried different power cables & removing the grounding pin on either the C-2 or the amp, but it makes no difference. I have also tried unhooking the input from the cable system as I have seen that it is often the cause.
Does anyone have any suggestions? Many thanks. Maybe I just have a noisy C-2 (except when balanced)...
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