Weak ROTEL phono section

Double check the wiring to your cartidge.With the unit off,cycle the MM/MC switch a couple of times to see if it is not making a good contact.Make sure you have it in the correct position before turning the unit back on.Last resort,hopefully you have another TT to try in place of that one.Owners manual link>>[http://www.rotel.com/content/manuals/rc1090_multi.pdf]

If the cd works ok,there shouldn't be any problems with the balanced outputs to your amp,otherwise the cd would show the same characteristics.If your new to vinyl,it maybe the difference in dynamic range.When cd's first came out,I thought I was going to blow my speakers(plus have a heart attack)the first time I played a cd at home.I imagine if I was new to vinyl,I may think it sounds weak at first if I was used to cd's only. If its a new cartridge,it may sound different from your old one.I don't have all the knowledge like Almarg does,but I've been through a lot of different audio equipment also,and like he says,the volume difference has been common for me also.Hopefully its nothing so you can enjoy the music.