Q Concerto Meta3 way bookshelf speaker The Q Concerto Meta HiFi speaker is the largest in our Q Series bookshelf speaker collection. Paying tribute to the original 1969 Concerto, which was our first 3 way standmount speaker, this modernised version delivers professional high end audio quality. Thanks to its 3 way design and Metamaterial Absorption Technology (MAT), this wired speaker is sure to deliver high fidelity performance.