Is This "Bi-Wiring"?

For many years I ran all separate components in a 2 channel system and bi-amped speakers. That system was destroyed in a fire. I am now rebuilding and will start off modestly with a vingtage Luxman R-115 receiver (70w x 2) and set of KEF 105/3 speakers that survived the fire, and add a modern cd or blueray player.  These speakers have the double set of binding posts.  I thought of using both the A and B speaker outputs on the receiver, running one set to the low posts and one set to the upper posts, being sure to keep both speaker switches engaged.  Is this "bi-wiring"?   Is there any benefit to wiring up this way?  Will I substantially dilute the amplifier output (it's ability to properly drive the speakers)  by splitting the signal and running both speakers rather than just coming off the A terminals?