Get the 218 and you have your best optical input.
Then you have that choices:

1) Take a 75 ohm coax cable between the "digout" from the 218 and your master DSP. A S5-lead or slave cable from the master to the slave DSP.
So you audio go from your TV over 218 and volume control via the MSR.
Type the DSP for usage with non Meridian source.

2) Similar to 1) but add a "SL to comms" cable between your 218 SL Master out to the comms-in of the master DSP.
You only need the comms wires-not audio as using just wires for audio is a disadvantage for the sound. The audio runs still over the 75 ohms cable.
The advantage here is that you can use the "IP control" app for the 218 if you like, where you can do a lot things>> Read the manual.

3) Similar to 1) and 2).
Buy the 218 and a AC12 or Reviver that gets connected between the 218 SL Master output and your RCA input and comms on your master DSP (and of course still need the S5-lead between the DSP`s)

So you can use the 218 app and have one Cat cable that carry the audio and controls and sounds slightly better then with coax.

4) Or add to 3) a second cat cable between the 218 SL slave output and the slave DSP and remove the S5 lead between the DSP's.
Then you just have to use two Cat cables between the 218 to the DSP.
No cable between the DSP and the two revivers hangs up behind the DPS`s with integrated short (8") cables.

You can do that also with AC12 but need (short) M5 and S5 cables as the AC12`s are best behind the DSP's.

With 3) and 4) you are future proofed and have the best sound of the choices.

All these solutions are cheaper as a 861v4.


800v3/218/271/8k.2/5k5s smile /5kC/DSP3200/Reviver/
TT-ELP/Graham Slee Revelation/Trinnov Altitude 32/OPPO 205
__Ayon/HB/Shunyata/Miltzow -- power cables,
__Ayon/Jungson/Miltzow --analog, Miltzow-- digital,
__Vortex/WMA ,