N Stuff Music | 2 decades ago

http://www.nstuffmusic.com/p-10222-mesa-boogie-markvhead-medium-head.aspx Simul-Class Power Amp (Patents 4,532,476 & 4,593,251) featuring Multi-Watt (Patent Pending) and Duo-Class (Patent 7,173,488) technologies which provide three power and three operating class options that are channel assignable via 10/45/90 Watt Power Switches: Choose 2 power tubes operating in pure vintage Class A (single-ended), producing 10 Watts - 2 tubes running in time-honored Class A/B producing 45 Watts or 4 tubes running in Mesa's legendary, patented Simul-Class Power that blends the best of Class A and Class A/B simultaneously to produce 90 Watts of pure tonal magic / 4x6L6 (or 4xEL-34), 7x12AX7, 1x5U4 .

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