Dave Smith Tempest. Awesome drum machine/synthesizer. Fantastic sequencer and performance capabilities. In depth drum synth which can be used as standard polyphonic synth if required. Drum sounds can be created from 4 layers (2 synth layers and 2 sample layers) meaning this machine is capable of some monstruous drum sounds. The sequencer is one of best out there having been designed by Roger Linn. This box is a future classic. Only selling due to cash flow problems, will be sad to see it go.