Tube amplifier. The basic layout of the Invader consists of an all tube driven head, that features 8 different gain stages in 4 separate channels that include four separate EQs. Powered by 4 EL 34 Tubes the Invader delivers a total amount of 100 watts. The idea behind the Invader is that guitarists need most flexibility and control for any given playing situation. Easy to handle ~n just focusing on pure tube tone. Named Channel 1, 2, 3, 4, these channels are able to produce different Overdrive/Gain structures each one from Crunch to High Gain. Every Overdrive Voicing in the channels is different. In conjunction with the Hi/Lo gain switch, which can be remote controlled and a separate EQ section for each channel, there will be no limits except the guitarist creativity. Channel 1: Silken Clean to Crispy Crunch, Channel 2: Fat & Bulky Crunch to NU-Rock/Metal Rhythm/Lead, Channel 3: Tight Warm Crunch to Classic Dynamic Rock/Metal, Channel 4: Modern Crunch to Singing Harmonic Leads. Dimensions: 710 x 270 x 290 mm. Weight: 23kg