Further cleaning/purging of the gear to help empty out the house.
These are prototype diffuses from when I was experimenting with different materials and assembly methods. The big one isn't well finished, but is to the correct math and measurements (and a big PITA to build). The two "smaller" ones are poplar and would look amazing stained.
They are too big to ship really, so pickup, or possible delivery in the Chicagoland area. Ping me if you are interested.
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The largest diffuser is a HUGE 33" x 48" by 12" deep QRD 29 (meaning it's a non-repeating prime 29 sound diffuser). It's very broadband, more than most anything else on the market. It's a prototype, so it's not perfect, but it's only $100 for a huge diffuser! It's heavy, around 65 pounds. Made from Plywood, MDF, and dense polyfoam for the well bottoms. Glued up with special adheasive made specifically for this type of foam.

The Middle sized is an all hardwood (poplar) QRD 11 sound diffuser. it's roughly 36" x 24" x 6" and ready to be sanded and stained, or painted. $100

The smallest is also an all hardwood (poplar) QRD 7 + 1 diffuser, is roughly 25" x 24" x 6" Ready to sand and stain or paint. $100
Sorry for the poor lighting, but this one is just a slightly smaller version of the one above. Same materials.

Message me here, or feel free to E-mail me at LonelyRaven@hotmail.com