Like the entire MG line, there are four channels on the MG102FX: Regular input, Foot controller, Headphone/line out, and MP3/line in (for playing along to MP3s). The MG footcontroller allows you to change tones from clean to distortion on the fly. The emulated headphone jack of the MG102FX allows you to hear yourself playing through headphones while the amp itself stops making noise. This feature is ideal for night time practicing. The 2010 Marshall MG102FX is an updating of previous models in that it has a Frequency Dependent Dampening (FDD) switch, which gives the sound of this amplifier depth, and mimics the classic tone of Marshall's all-tube amplifiers. The on-board digital effects (chorus/phaser/flanger/delay) are also a new feature. You can have one of these effects on at the same time as the digital reverb effect. This amp is a step up from the lower cost MG101FX in that it has a pair of 12" Custom speakers instead of just one. Like the entire MG series of guitar amps, the MG102FX comes in a classic black color.