I am very happy with my Martin Logan Vignette. I use ML Mosiacs for mains and will soon be upgrading to the ML Vistas but for a good center I find the Vignette a great choice.
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MY SYSTEM: Outlaw 7500, McIntosh MC-252, MartinLogan Vantage (2), Definitive Technology BP7600 (4), Golden Ear SS-3 (1)