DS18 Flush/Surface Mount 1-Channel Monoblock Class D Amplifier w/Acrylic Cover - 1x900W RMS @ 1 Ohm [FX1]Flush Surface Mount 1 Channel Monoblock Class D Amplifier with Acrylic Cover 1x900W RMS @ 1 Ohm DS18s FX1 packs a punch with high quality sound output while maintaining a small footprint, making it perfect for those who value both power and space efficiency! What sets DS18s FX1 apart from other amplifiers on the market is its unique flush or surface installation mode. With the included surface mode adapter, you have the freedom to install this