Epos cabinet sensitivity

R U talking about crack or scratch and/or dent?
Crack usually occurs with wood that hasn't been dried enough. The only way to prevent it is request a wartanty replacement for the brand new one.
If it's only dent or scratch than it's a nature of all solid wood. Wood composite or MDF doesn't have these problem but sound much worse. Strength of a finish does play a role and partsexpress sells finish that may turn out much stronger and may stop such extraneous sencitivity of a cabinet if you're able to refinish them yourself and if you're not than use a touch-paint or stick the missing piece back if found.

Now I guess it's spoken by not responsible company that doesn't cover fault of their own solely. If solid wood isn't dry enough, than it will eventually crack with or without extraneous force applied. I may make a not of their discusting customer service.
In your case I'd arm myself with epoxy mix, blanket, huge vise to grip the whole speaker and some prayers so the rest of wood planes are dry enough not to crack under moderate pressure(just to be enough to hold this cabinette for 24hrs). Vise is purchasable in Home Depot and if you won't need it for other projects you can return and get your money back right after using it.

Finally???
Mazeltov!!!