Marshall JVM205H 50-watt Tube Amplifier Head Features:50-watt all-tube amp head2 totally independent, footswitchable channels - clean/crunch and overdriveEach channel has three footswitchable modes - green, orange, and redEach mode has switch memory (reverb on/off, effects loop on/off, master volume 1 or 2)Footswitchable, studio-quality digital reverbIndependent reverb controls for both channels2 footswitchable master volumes2 effects loops - 1 series and 1 parallel/seriesParallel/series effects loop is footswitchable on/offSpeaker-emulated XLR line-outProgrammable 4-way, 5-LED footswitch with memory capabilitiesAll switching can be done via MIDIMIDI in and MIDI thru jacks on rear panel