usually we should plug in the short plug for RCA or pin for XLR. Coz certain power amp model may have the same output curcit for both RCA and XLR. New amp design should have the 2 separated.
For old design, amp will read signals even you are not utilizing the plug. And thats create the hum sound.
Krell and Meridian are typical brands which need the shorting plugs.
For old design, amp will read signals even you are not utilizing the plug. And thats create the hum sound.
Krell and Meridian are typical brands which need the shorting plugs.