What makes a cabinet sound boxy?

[SanDiegoHarry]

Harry—your Epifani 210 is sealed? I've had a UL1 210, an NYC t-210, and UL1 410. All ported. I've never seen a sealed Epifani with 10's. Is it new?

I could certainly be mistaken!

 

[chadds]

You have to remove it from the carton. I know it's all packed nicely and Fedex or UPS didn't mess it up but you won't hear that cabinet really stretch and blossom and reach it's full potential.