I use my Ruby 2 with the CAT signature phono stage. Seems like a match made in heaven, the Ruby likes to be loaded down to about 700 ohms,IMHO much airier and resolving than at the standard 47K.
Plenty of gain with the CAT, even had enough gain with my older Ruby that put out 0.2mv
Plenty of gain with the CAT, even had enough gain with my older Ruby that put out 0.2mv