Actually soundstage speakers are JBL.
If you like your speakers, who am I to judge - my speakers (tSc) are rebranded Saphire speakers from Tweeters. But I bought these after very detailed and positive AH review. I have no regrets - they are good speakers, but I also have no illusions. They are far from perfect.
Does it makes me all warm and tingly since tSc was a child company of D&M -( ie Denon & Marantz) - no, Not really - since I knew darn well what they are and D&M engineers only done minor tweaks to original design.
http://thespeakercompany.blogspot.com/
My next upgrade (after getting a real sub) would be new speakers, NOT to replace my aging Onkyo AVR.
That said - Sorry, but I find absolutely no evidence of any relation of soundstage and any large speakers brand