Yes I do own pair of Charney Audio Maestro with the Omega RS7 driver, Listening to them now as I write this. I have never listened to Cube Audio but have listened to everything that Charney produces. I live about an hour from Charney and occasionally stop by for a listen. Brian is a great guy and will call to set up a listening session from time to time.
His speakers are designed on the Tractrix theory and not "boxed in" like other designs. In a nutshell the horn expands on all sides as the sound moves through it. No nasty corners that cause congestion and cancellation. Music is lifelike with a spooky real image and soundstage. Bass is clean, quick and deep with no need for augmentation even with the 6" drivers. Charney's goal is to create a speaker that sounds "real" and conveys an artists emotion and intent. He has succeeded on both counts! When I listen, I'm engaged in an emotional and intimate way with the artist. No matter what you listen to from Bach to rock Charney will get you there and keep you there.
True story, my niece and her boyfriend stayed with us last May over the Memorial Day weekend. After dinner we retired to my offfice/listenig room to spin some discs. I never knew she could sing! She was soloist in her high school chorus that won all state in GA. She sat in the chair and couldn't get enough! Her boyfriend just kept movin' and groovin' as we went through a bunch of songs from Eva Cassidy, Tracey Chapman, Pink Floyd, and demo tracts that really shine. What I though was going to be a quick session went for 3 hours. When we were done she said to me "This system is the kind were you listen to the whole album and not just different songs. Next time when we come back can we do that?" Uhh Yes! I replied. She gets it! A 26yr old Millennial got it!
Any of Charneys creations will do you right. If your budget and room can suppot them, the 8" Voxativ is a great way to go. My room is 11x15x8 which is too small for the 8" but the 6" shine in here. Charney lent me a pair of the 6" Voxativ Companions for a week. Just wanted to hear then in my room to possibly upgrade. Well I was sold and saving up to make the change next year.
Chris