The undisputed go-to guitar amplifier for scores of rock, hardcore and metal bands for its raw tone, relentless power and road-proven reliability, the 6505 features five 12AX7 preamp tubes and four 6L6GC power amp tubes, with presence and resonance controls and three-band EQ for taming its notorious tone.These features, combined with its classic ultra-high gain preamp capabilities and monstrous 120 W power section, result in an amp with awesome stage presence and enough volume for any gig.