share 2 CH speakers with HT set up or use separate speakers for front end of a 7.2 HT?


My TV/Listening room currently has 2 separate front ends.
One for music and one for HT/TV.
The 2 channel set up is a Lyngdorf TDAI 2170 into Dali Helicon 800s towers.
The HT set up is Denon X3500 into an AV1213 front end utilizing book shelf speakers for L&R

The room is only 13’ wide and the speakers are kind of close to each other.
I’m wondering if I should ditch the cheaper AV123 book shelf speakers from the HT set up and use some kind of switcher, as long as it doesn’t degrade the signal I get out of my Lyngdorf / Dali 2 CH set up.

I was switching speaker cables for a while (with just one set of speakers for the front end) and I found myself not using my 2 channel set up much because the cable swap was a pain.

I'm sure the Lyngdorf has a HT bypass but my brain is having a hard time figuring out what that actually is, even after reading a few blogs on it,  or if I should be using it. 

What do you folks think?
128x128flavo
My suggestion is go for HT bypass, what you need is a pair of interconnect cable.
HT bypass means that the Lyngdorf gives up the the volume control.

No matter what level you were listening to music, when you use HT Bypass the volume gets taken over by your HT processor.
I had the same dilemma sometime back. I was using an AVR to drive Kef LS50s but wanted to get into 2 channel. I was limited to a smallish room. I picked up a used Peachtree Nova 150 which has HT bypass as suggested by the folks above. 

I connected the front out of the AVR to the Aux/HT Bypass input of the Nova 150 and it worked like a charm. As Erik mentioned; when the Nova was in HT bypass mode, the AVR controlled the volume.

My scenario was further complicated by the need to share my subwoofer between the two systems (love the LS50s but not very much bass) . I used a Schiit Sys to share the sub. It worked a treat but required manually flicking the Sys between the AVR and Nova 150.  

Your Lyngdorf has HT bypass and the owners manual walks you through the configuration. Just pick up that interconnect @imhififan mentioned.