AtlasIED SMP-15 - 15-Inch 2-Way Passive Portable LoudspeakerThe AtlasIED SMP 15 is a 2 way passive speaker that includes a single 15" woofer and a high frequency, horn style compression driver. 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 SMP 15 is a passive models that features the same 2 way design as the powered version but is designed to be used in conjunction with