I just did an experiment where I tried “porting” the enclosure in an aristo loco. To my ears, there’s a dramatic improvement in sound. I put the topic, with some sound samples, in power and sound
http://www.largescalecentral.com/LSCForums/viewforum.php?id=5
I hear a clear difference, but I could be imagining it. The samples were recorded in the same room using th same equipment on exactly the same settings