I already inquired about this at the DIYSG web site. Here's what I wrote Erich: SO Erich, after spending hours trying to keep my room column design slim and trim (I've got low ceilings), it finally dawned on me that the width of the HT8 waveguide means I can't reduce the enclosure width at all (12.5"). To accommodate that width plus speaker frame molding and a decent edge space, the columns end up looking too fat and squat. I'm now hoping the Volt 8's will allow for a narrower column design - Here's my current column design. I can go deeper if I need to, but I'd like to keep the width or even narrow it a bit... Just to be clear, I am building a box for the speaker. ATM I've got 11 inches of width to fit a speaker baffle up against the frame cloth: So, how shallow a box can I make for the Volt 8's with a box width of 11 inches? I've got lots of vertical room... Thanks!