Vox Night Train The Vox Night Train NT15, an 18-watt EL84 powered amp head. This one belongs to my wife. It suffers from the fizzy decay issue. Did some mods but no real improvements, amp only started to sound worse so I reversed most of the mods. Links My Les Paul Forum - Some mods for the Vox Night Train Metropoulos Forum - Night Train mods Music Electronics Forum - Problem with this fizzy sound