mostly for locution, sometimes for the finished work, but more often for castin locutors, throw them some lines and record them, i've put my marshall stack in there, but it seems to need more space, the true is that it saves me money for casting, so i can bring some voices to choose to the client but i have found it worthless for other things a friend even came with this calibrator thing, and we did a equalisation for my monitors in this room, even put some of the material in the ceiling of the room and a big blanket in the back wall 'cause he said so, but it's my home studio, the true for bigger work i use other studio, when i already have the budget and some advance money, i'll hear your samples. cheers.