I have been looking at HK receivers this week and looked at some of the manuals on their web site. Your HK AVR 135 will have to be set up before you can pick your crossover points. When this is done, your sub will have a choice of 40,60,80,100,120 and 200 hz to choose from. This set-up is called "triple crossover system", it will give you the option of setting up your crossover point for you mains, center and surrounds instead of just large and small. That L+R+lfe means your sub crossover point is not crossing over your mains, they are playing full range.( this is a default setting )

You will have to go to your manual, which is online at the HK website and follow pages 17, 18 and 19,( SYSTEM CONFIGURATION ) this is the speaker set-up and it will have to be followed, if not you will stay in your default settings.

**** The crossover setting for the sub is explained on page 18. It looks like the mains, center and surrounds crossover points will determine you subs crossover point. It may be kind of confusing but it's has to be done.