A live pre amplifier. The Calypso XP has been designed to give fans a musical experience of a thousand nuances. It is possible to "browse" with the bass and mid-highs to search for the preferred sound, otherwise, by pressing a simple button you will have the natural sound of the pre amplification stage, the original recording of the song. Tone control is performed by means of two valves and a dedicated circuit, as well as the fully valve pre amplification and the mixed feed with diode and straightening valve. Equipped with a remote control with which you can control the volume, select the input between the 4 available and for the stand by function.