Single driver speakers. Are they worth considering ?

Cube audio founder Grzegorz Rulka sent me a blueprint for cabinets. He recommended not to put these drivers into generic cabinet (which I also explored). Jim Salk did a great job and for the lowest price I could find (I took a couple of quotes). Salk prefers to work with MDF boards. I insisted on plywood which raised the price a bit. But Jim convinced me to put a second MDF board layer for the front baffle to stiffen it and reduce vibrations and provide more support for these heavy drivers. I think it was an excellent decision. Jim was super patient with me and worked on details for a long time. Highly recommended. PM me for details about the prices.
As for the picts - it does not look It is possible to insert in this forum? I chose a black finish to achieve more dramatic contrast for orange drivers.

Thanks. Could you perhaps post a link to a Google drive file (or similar)?

@tkukielk that’s a great idea having salk build the cabinets. I’m a big Salk fan. I have two pairs now (Song3’s and Wow1’s) and also had a pair of songtowers. I also recently purchased Cube Nenuphar Mini’s. I wanted a walnut finish and was thinking of contacting Jim to build a cabinet since Cube sells the driver and the speaker is very simple since it doesn’t have a crossover. However, when I contacted the dealer he said he had a special pair of walnut mini’s already on the way for himself and sold them to me. Just curious, how much did jim charge? His cabinetry is excellent so I wouldn’t hesitate using him to fabricate these speakers. Any pics?

Also love that you’re using the Evo 300 with them. I’m using a Canary M90 push pull 300b amp. Sounds great but is a bit polite as well. My first tube amp was a Primaluna Dialogue 1 and I really liked it. I’ve been thinking of trying the Evo 300 with these as I really like the EL-34 tubes. 

Per request, here is the link to a couple of photos of the cabinets made by Salk Sound for Cube F10 neo drivers:
Cube - OneDrive (live.com)

@tkukielk They look great! Thanks so much!