The Avantgarde Acoustic UNO SD is a compact horn loudspeaker that delivers the speed, clarity, and dynamic expression of horn-loaded design in a space-efficient format without sacrificing musical realism. Featuring a precision-engineered spherical horn for midrange and high frequencies and an active bass section for low-frequency support, the UNO SD produces an immediate, lively sound with exceptional efficiency and tonal accuracy. Controlled dispersion ensures consistent room interaction, while the active bass system provides tight and articulate low-end performance. The UNO SD is ideal for listeners who want authentic horn sound in smaller or medium-sized rooms while maintaining a refined and engaging listening experience.