Hi,
I tried to hook up my new AVR as follows:
When I watch a movie from Apple TV and select Input 6 on my Amp, I get hum/noise through the front speakers (IIRC even if I pause the movie). Disconnecting the HDMI output to the TV stops the noise, I'm suspecting because I may have a ground loop as both the TV and the Rega DAC are 3-prong power cords plugged into different outlets, with RCA (and HDMI) between the units.
The AVR only has unbalanced pre-outs, but the AMP has balanced inputs - would an RCA to XLR cable between the two resolve the issue? If not, I have read good reviews about the Jensen Iso-Max CI-2RRRCA Stereo Line Input Isolator Hum Eliminator but that is kind of pricey at $240 (plus another interconnect and potential for impact on sound). Are there recommended alternatives that have been tested that are less expensive? Something similar for HDMI connections?
If all else fails, I can change the wiring in the basement - would the two outlets have to be on the same circuit, or just on the same 120V leg in the electrical panel?
Appreciate any advice!
Frank
I tried to hook up my new AVR as follows:
When I watch a movie from Apple TV and select Input 6 on my Amp, I get hum/noise through the front speakers (IIRC even if I pause the movie). Disconnecting the HDMI output to the TV stops the noise, I'm suspecting because I may have a ground loop as both the TV and the Rega DAC are 3-prong power cords plugged into different outlets, with RCA (and HDMI) between the units.
The AVR only has unbalanced pre-outs, but the AMP has balanced inputs - would an RCA to XLR cable between the two resolve the issue? If not, I have read good reviews about the Jensen Iso-Max CI-2RRRCA Stereo Line Input Isolator Hum Eliminator but that is kind of pricey at $240 (plus another interconnect and potential for impact on sound). Are there recommended alternatives that have been tested that are less expensive? Something similar for HDMI connections?
If all else fails, I can change the wiring in the basement - would the two outlets have to be on the same circuit, or just on the same 120V leg in the electrical panel?
Appreciate any advice!
Frank