"With 5-series Ayre components, the idea of running balanced from disc
player through preamp to amp is appealing, but it doesn't provide for
bass management."
If you are looking to take extremely high quality, near state of the art gear, and turn it into an aspiring mid fi system, this is exactly how you do it. All I can say is that if you are looking for advice like you're getting now, just go to Best Buy. Charles is not going to get too involved and take part in an argument like this. I can't speak for him, but I'm pretty sure he's tired of getting into debates like this. If I were in your position, I would be more inclined to seek info from people that own and use the same type of gear you have.
"Personally I would retain the Ayre purity using balanced connections and
finding a better way. I have an all Ayre system balanced from
cartridge/CD player through amp and am very satisfied."
I agree. Bass management is for HT systems. There's a reason that no one with the level of gear you have uses it. For best results, you need to do it yourself.