Metamaterials have attracted tremendous research interest due to their fascinating unusual properties that are not available from nature, such as negative refractive index, reverse Doppler Effect, negative compressibility, etc. [1]. However, conventional metamaterials are simply structures as their special properties are independent to intrinsic properties of building blocks, which tarnishes their application perspectives to a large extent. Ferromagnetic microwires have been reported feasible to create electromagnetically double negative (DNG) medium by arranging them in a parallel [2] and orthogonal manner [3]. Recently we proposed the concept of metacomposites containing Fe-based microwires and revealed their DNG properties in line with advantages such as structural integrity and economic processing over metamaterials [4, 5]. Herein, as a step further, metacomposites containing hybrid Co- and Fe-based microwire arrays with different topology are designed and fabricated. A tunable DNG feature under external dc magnetic field is observed in the metacomposite containing continuous wire arrays evidenced by transmission windows and a negative dielectric permittivity dispersion. A DNG/band stop characteristic is observed in the metacomposite containing short-cut wires confirmed by a dip at 6 GHz in the transmission spectrum.