Gallo Acoustics For over 20 years the Gallo name has been synonymous with spherical loudspeaker design. Their acclaimed products are designed around spheres, thus eliminating resonance and internal diffraction, the two main causes of loudspeaker distortion. Quite simply, Gallo produces the world’s finest compact speaker systems, blending real hi-fi performance with contemporary industrial design, wrapped up in an installation and décor-friendly package – guaranteed to deliver