I have not heard the LFM-1 so I cannot really speak to it's performance . The outlaws here seem to think it is a pretty stand up sub though .
The Klipsch RW subs I have sold for years and I am telling you to stay away from them . You probably will not get the performance that you expect from the RW series . Even bigger problem with them was the revolving door effect . As soon as they went out the door . They were on their way back in for repair . People were cranking the volume up on them and burning them out .
The RSW subs are a step up and do a nice job with home theater and music both . However, the Klipsch will run you more $$$ than the LFM-1 .