The difference in the distortion ratings at the various impedances will not make any difference to the performance of your system. The bass echo you have noticed in your room would not be eliminated by the speaker selection unless you decided to eliminate the low frequencies all together, which is probably not desirable. Have you tried moving the speakers out into the room slightly? This generally works pretty well for this kind of room problem.

Ian Colquhoun
President & Chief Engineer

Ian Colquhoun
President & Chief Engineer