The AtlasIED SMA-12 is a 2-way powered loudspeaker featuring a single 12" woofer and a high-frequency horn-style compression driver. The unit features an integrated Class D amplifier that includes RCA, XLR, and 1⁄4" microphone inputs. While most commonly used as main speakers, the wide frequency response and adjustability of this series make them ideal for use as stage monitor speakers for concerts or productions. The SMA-12 also features a Speak-ON output. ™ to connect to another SMA model or a passive SMP model. The SMP-12 is a passive model that features the same 2-way design as the motorized version, but is designed to be used in conjunction with the motorized SMA model. Each enclosure includes a Speak-ON™ connector for connecting to the powered version, making them easy to install and share a source.