Transparent newer cables at the same level you are using will out preform the older model.
New McIntosh C22 - Upgrade Transparent Balanced Musiclink Plus
Just purchased a McIntosh C22 mk V preamp. I am using a ML No. 333 amp that I purchased 20 years ago, as well as, using the transparent balanced and speakers cables that I purchased on the same time. Looking for advice if I should upgrade the cables? I don't plan on changing out the amp for atleast a year or if if i need to recap. Most likely I will add a MC312 for MC462 amp.