Matchless Cobra 30 112 Combo Cappuccino/Silver Piping (039)The single channel Cobra is a 30 watt amplifier based on the C 30 power section and offers both Reverb and Tremolo making it one of our most feature packed amplifiers! Controls are volume, master tone, tremolo speed, tremolo depth, reverb, cut and master volume. High low power switch, speaker phase selector. It has one EF86, four 12AX7s, four EL84s, and one 5AR4 GZ34.