Rcprince is correct, all multichannel SACD's have a 2 channel layer as part of the standard. I only own a 2 channel SACD player, but all of the multichannel players I've seen have a method for selecting the 2 channel layer as well.
If you only want to listen to 2 channel SACD I'd recommend you get a 2 channel player though so that you don't even have to deal with selecting that layer, (i.e. it would do it by default). Many of the high end SACD players are only 2 channel anyway (Accuphase, Shandling, Xindac, older Sony's).
If you only want to listen to 2 channel SACD I'd recommend you get a 2 channel player though so that you don't even have to deal with selecting that layer, (i.e. it would do it by default). Many of the high end SACD players are only 2 channel anyway (Accuphase, Shandling, Xindac, older Sony's).