As far as I know, and I have spoken to Leonard at ARC just last week, that is correct. LS5 is symmetrically balanced and has only XLR connectors. You can probably use RCA through XLR2RCA converters. . . and YMMV., caveat emptor, we make no explicit nor implied warranties of fitness nor merchantability for this nor any other applications, offer not available in Iowa, external use only, keep refrigerated, etc. . .