Dave:
>My NAIM NAIT 2 has a very similar chassis. The only difference is that instead of 2 aluminum Ls, it has a steel U. Same 4 screws hold it together.<
Some of the Spectral preamps used this same type of chassis for their remote transformer box. Rectangular tube aluminum extrusion, aluminum U, and 4 screws serving double-duty as feet. The sliding U-part carried all of the electronics and made servicing and repair extremely easy.
jonathan carr