Yes, some interesting rooms and tables at The Show in Newport Beach this weekend through Sunday.
As vinylguy4 notes, Eastwind Import has some 5.1 Multichannel SACDs (U.S. and Japanese releases) and a number of the Stereo SHM-SACDs from Japan for sale. Elusive Disc and Acoustic Sounds are in the same room and also have some Multichannel SACDs for sale.
Be sure to check out the Iso Mike room where they are playing 4.0 Surround from their catalog of direct to DSD recorded SACDs. On sale at the show for 50% off ($20 each vs. $40 each for SACDs). I'm told this catalog will be available in the near future as Multichannel DSD downloads - including their out of print SACDs. See
http://www.isomike.com
AIX Records has Surround titles for sale as vinylguy4 notes. They also offer headphone demos of their discs via the Smyth Realiser in 7.1 Surround Sound using the Oppo PM-1 headphones and HA-1 headphone amp.
Another interesting demo for Quad/Surround Sound fans is right next to AIX Records. Darin Fong Audio has a $149 software program for Windows and soon Mac named "Out of Your Head" that simulates 7.1 Surround Sound. Similar to the Smyth Realiser but much more affordable. Very cool! See
https://fongaudio.com/out-of-your-head-software/ to downoad a free demo to try on your computer.
Across from AIX and Darin Fong Audio is On A Higher Note. On Friday they had a session with pianist Fiona Joy from Australia. They played her albums on Stereo Vinyl but you can get them on Multichannel SACDs. And yes, she is even more attractive in person than on the SACD cover!
Ted Smith, inventor of the DirectStream DSD DAC from PS Audio is at the show Friday and Saturday from 11am to 3pm each day demoing his new DAC. A Multichannel fan, Ted hasn't ruled out a Surround Sound edition of the DirectStream down the road. You can't miss him in that colorful Hawaiian Shirt!
Down the hall on the 8th floor is the exaSound/JanZen Speakers room with George Klissarov demoing the exaSound DAC. George is a big Surround Sound fan. Be sure to chat with him about Surround. Speaking of exaSound and their e28 Multichannel DAC, one floor down in Room 711, David Robinson at Positive Feedback Online is demoing some Double Rate (DSD128) and Quad Rate (DSD256) material on the exaSound e28 DAC in Stereo.
Tomorrow (Saturday) you may see Marshall Blonstein from Audio Fidelity and Mastering Specialist Steve Hoffman (room 814, Audio Note) at The Show. Also worth putting on the calendar, some announcements on upcoming releases during the DSD Panel starting at 4:00 pm. Be sure to check that out. (See
https://www.quadraphonicquad.com/forums/showthread.php?19160-DSD-Panel-at-The-Show-Newport-Beach)
Enjoy!