Child Damage Mitigation

I agree with the other parents in this thread. It's easy to tell who they are! 1) Congrats! Becoming a parent is a really wonderful phase of life.

2) From now on your kid will always be the most important thing in your life, period. More important than your gear for sure, and even more important than your wife. She'll eventually agree with that too if she doesn't already. 

3) Personally, I went to replace my B&W 802M on SoundAnchor stands with their bottom woofer dust caps at eye-level with something smaller (805M + sub so I can have a respectable-if-older surround system in future) on weighted stands. By the time I got around to filling the stands, my son had learned not to touch the 802s. So they still sit where they started out.

4) I did install a large piece of Plexiglas-type material in a wood frame across the front of my system. That's been a huge help to keep his little hands out. Now he can reach the top of it but still leaves it alone... for now.

5) As the other parents here have pointed out, start thinking about how to secure your large speakers (and EVERYTHING else) from falling on your child. Sure it's fun to joke about protecting the speakers in various cruel ways but your mindset will eventually morph into seeing things as a parent whose job it is to protect the child from dangers. This is no one else's responsibility, quite a large realization as a new parent if you ask me.

Babyproofing is challenging and fascinating unto itself, but is nice because it goes in phases. Do you need to secure the kitchen drawers when they can't yet stand? Nope. Should you watch your child's development and sort out in your head what might need doing next? Yes! Should you crawl around on the floor with them to see things from their perspective? Yes! And bring a vacuum, Swiffer, etc. with you. Good luck! 

Machine gun emplacement with landmines has worked for me.  Seriously if you can't move them to another more secure room, I would fence them for the first two years then teach them not to touch afterwards.  Either way, you have to assume that they will touch it and possibly damage it.  My buddy opened his Oppo player tray only to find it packed with Peanut butter.  If it does happen it gives you a good reason to upgrade and the wife can't argue. 

I also recall a friend's child tried to play a PB&J sandwich in their VCR.

I find it interesting that some posters think that buying monitors and placing them on stands (whether weighted or not) is a wise move.  To me it is a recipe for disaster.

As a young kid my son would open the glass door of the stereo cabinet and push on the power button of my then integrated.  Then one day he managed to do it concurrent with turning the volume to 11.  Shocked both of us, and funny he was more reluctant to mess with the stereo thereafter..  

"I also recall a friend’s child tried to play a PB&J sandwich in their VCR."

This reminded me of something unrelated to speakers.

If you have a CD/DVD player or something like that and you cannot find some CDs/DVDs in their cases, take the cover off, remove all 10 CDs/DVDs that you daughter managed to push in the player without you noticing, put the cover back on. It is surprising that these players play with a bunch of discs crammed inside (not on the tray, though).