This is my first post smile , and I am about the order my first high end system, and I have been advised to go with Velodyne DD+12 from the dealer.

My room has poor acoustics (lots of different obstacles) 3.5m wide x 4.5m deep but opens up to a larger tiled area.

I am intended to go with a 5.1 setup:

861v8
HD621
DSP5200 Fronts and 5200HC centre
DSP3200 Sides
Oppo BD105

Do I need to get an analog output card to connect to an analog sub? Would I be better off to go with the DSW which has the DSP which may be more important? There just isn't much information on the DSW but the Velodyne is proven.

Also where would be the best place for the rear/side speakers? I can't really put it at the rear - would it be directly to the side or at an angle?

If I have asked some very basic questions please accept my apologies.

Many thanks for your help!

Lounge: 861v8 with ID41, 218, UHD722, Sonos Connect Wyred4Sound, AppleTV, Oppo 105, DSP8000SE, DSP5200SE
Streaming: Roon/Spotify
Currently not in use: DSP5200 x 2 pairs, DSP5200HC, DSP3200, 218 x 2, MS600, DSW x 2, MC200, Sonos Connect Wyred4Sound