recommended speakers for SET amp?

Mmccoy: The only affordable (in this case) speakers that come to mind, with efficiency and dimensions such as this, are the modern Klipsch models (probably get a better deal used) and also a speaker kit from hammerdynamics.com that retails for around $600. With the kit you have to supply the materials for and build the cabinets yourself (or have them built). There should be quite a bit of info on both plus many other possibilities at audioasylum.com, which also has a high efficiency speaker forum. Bottlehead also has speaker kits available, but I am not very familiar with them. If you are using the Zen amp from Decware (there are two Zen amps) I found that the earlier model seemed to do very well with 4 ohm speakers when I tried one out for a weekend. I do not know if this is true of the later versions though. Unfortunately, it has been my experience that the specs (efficiency & impedance) do not really tell you how a speaker will perform within a particular setup (sometimes those with less favorable specs perform better than ones with great specs). So, other than setting up auditions at home, you are doing the second best thing that you can do by hitting the forums. The SET amp that I have is not commonly used, and hopefully you will have better luck finding owners of your particular amp to share info with.

Mmccoy: Yes, I am in the same boat as far as building the cabinets myself and the use of a jointer would be needed in order to get a proper fit (why do it half arsed)? I know that Lak at this site was using Klipsch speakers with a 2A3 amp (I found the Zen that I tried to be "similar" to these types of amps in both current and linearity at the frequency extremes). Perhaps he will see this thread and comment. The problem is that your room is fairly large, otherwise you could probably get by with a more run of the mill speaker. You may also want to contact Steve at Decware as far as choices as I suspect that a high impedence speaker may not be the best choice with this particluar amp (I seemed to have better luck with a pair of 4 ohm speakers, which was a bit odd, but which was a reality of the pairing).