Hola. I do believe that the Vantage model outperforms the SL3s. The self powered woofer and the new stat panels technology, do make to my ears, a better speakers. This is my liking, and not necessary others here at the forum. I do like both models too. Did you wash your SL3s stat panels? Some times with this process, you bring the stat panels back to life again, with crystal clear highs!. Happy listening!.