O ottvantor macrumors newbie Original poster Aug 18, 2019 1 0 Toronto Aug 18, 2019 #1 2 day old iMAC has very muffled sound on video play - same video on my 6 year old MacBook Air is perfect. On the phone twice with Apple, suggestion to reset NVRAM did not work. They are clueless. Tips? I'm using Mojave 10.14.6
2 day old iMAC has very muffled sound on video play - same video on my 6 year old MacBook Air is perfect. On the phone twice with Apple, suggestion to reset NVRAM did not work. They are clueless. Tips? I'm using Mojave 10.14.6