According to the product page, these will offer pin-point imaging while expanding the soundstage.

With my non-LFR v4, I swear one can be fooled into believing I have surround on most songs when in 2.0 or 2.1. I haven't tried with movies.

With the LFR Actives, do I need the 160 and QS10? Do I really need an 800?

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated