That's a bit tricky. A lot of preamp manufacturers haven't sorted out how to do the equalization properly in a balanced phono section, unless they are using an input transformer to convert to single-ended operation. So I've seen a few that made balanced phono sections and then later stopped.
We've been making balanced phono sections in our preamps now for 30 years, but we don't offer any that are outboard.
We've been making balanced phono sections in our preamps now for 30 years, but we don't offer any that are outboard.