Welcome. Here is my stash: I plan on measuring and documenting the smaller items I have from this site here and post some complete builds as well. The heart of everything I'll be using comes from this page here: http://www.diysoundgroup.com/waveguides/other-waveguides.html I've designed the: WAF-1 WAF-1.mtm WAF-2.x (unavailable as the performance isn't that of the WAF-2.y) WAF-2.y Jack of All Trades 8 I have passive and active version for most of my designs. Most of the active versions are just a simulation and should be used with caution. Let me know if you're interested in active and I'll try and measure it. Please contact me or post here if you'd like any measurements, designs, feedback, help with cross overs, etc. Most of these builds focus on size, looks, and cost. I try and get the most performance out of them as I can, but size and cost cut into performance compared to the larger builds popping up around here. They'll be good options for apartments, budget minded, surround duty, WAF, etc. Thanks.