Sorry it's been so long for a response. The MC-7 is an exceptional unit!! However, yes you will find it a pain matching gain but after a while incomes natural, I use my Mac mini for music so I just use the inferior volume control on iTunes (I can't hear a difference, does ahpnything else matter).
As far as gain goes, Holy cow batman,this thing has so much gain its INSANE!! Phono I don't think quite as much but the linestage gain MORE than makes up for it.