The Spark SMG-200 is a small amplifier with a huge sound. Combined with Spark's super efficient, high fidelity 8" coaxial speakers you can experience the same volume and clarity of premium 10" loudspeaker systems. The class D technology driving the SMG-200 creates clear, realistic and musical sound reproduction along with remarkable power in a very small package. The front panel features 1/4" left and right inputs from your mixer and a 3.5mm in for an iPod for between set music. Also included is an overall volume control, separate subwoofer gain and a frequency control. The frequency control allows you to incrementally add levels of midrange to the subwoofer. The back panel includes left and right out to speakers, subwoofer out and a stereo line-out to go to recording devices or in-ear monitor systems.