I wonder what's going on with those. That whole base situation seems a bit off lately. They keep backing up, and the new ones a clearly different. Good luck.
I have a cherry base on the Taboo, from around June 2013, and a walnut base that just came on the CSP. They are different in construction. The cherry base has a rabbet joint at the corners, with the front panel the full width of the base. The walnut base has a miter joint at the corners, like a picture frame type joint. The rabbet joint is probably stronger but really probably doesn't make a difference. It's not a high-stress application, lol. Different methods....something changed I guess
I plan on making some custom bases for my amps, as soon as I get around to it. If anyone is interested I may be able to make some for others. The woods I have on hand right now are bird's eye maple, bloodwood, kingswood, quarter sawn oak, purpleheart, walnut and maybe a couple others. Anyone with a walnut base want to swap for my cherry base? It would be nice to have mine match until I get around to making some.
WNBC- the bases are very easy to swap out, a few screws on top and the amp comes right off.
Longbow- good luck with the sale, it should be a no-brainer for someone to pick that up quickly.
On another note, I have had the French made Mazda 5Y3GB in place of the Philips 5R4GYS rectifier in the CSP3 for a day or so. Too early to give any sound impressions because it needs to burn in for some time. Also tube rolling is a bit overwhelming with 8 tubes in play in the pre/taboo. I may have to roll it into the Taboo after it's broken in and listen to just the Taboo to really get some worthwhile impressions to share.
But I can say one thing - - -
DAMN this tube is beautiful! It's hard to get good pics, but this is the best I can do. Much better in person.