Mesa Boogie

IT TOOK 40 YEARS of Randall Smiths experience designing high-performance tube amps to get this much TONE under one roof and keep it easy to dial. More than a collection of amplifiers, the MARK FIVE is a living history of MESAs contributions and a tribute to the evolution of electric guitar tone.

Simul-Class Power Amp (Patents 4,532,476 & 4,593,251) featuring Multi-Watt (Patent 7,602,927) 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 Mesas 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

Bias Select Switch (6L6/EL34)
Fixed Bias for Consistent, Maintenance Free Performance
Full Power/Variac Power Switch (Patent 5,091,700)
3 Fully Independent Channels with 9 Modes (Channel 1 = Clean, Fat or Tweed, Channel 2 = Edge, Crunch or Mark I, Channel 3 = Mark IIC+, Mark IV or Extreme)
Normal/Bold Switch on Channel 1, Normal/Thick Switch on Channel 2 (Mark I mode only), Normal/Bright Switch & Pentode/Triode Switch on Channel 3
Each Channel features: Independent Gain, Treble, Mid, Bass, Presence, Master, Footswitchable or Auto-Assignable Contour Depth Control, Footswitchable All-Tube, Long Spring Reverb Control, Rectifier Tracking (Auto-selects Tube for all 10 Watt Modes, Diode for all 90 Watt Modes, selectable Tube or Diode for 45 Watt Modes on Channels 1 and 2, Diode for 45 Watt Mode on Channel 3 - Patents 5,168,438 & 7,193,458)
5 Band Graphic EQ is Footswitchable, Channel Assignable and Selectable between 1 group of 5-Band Sliders or 3 channel specific, variable depth Contour Controls
Footswitchable, Channel Assignable or True Bypassable Fully Buffered FX Loop with Send Level Control (over all channels when activated)
Output Level Control (over all channels when activated)
Footswitchable Solo Level Control Patent 6,724,897 (over all channels when activated)
True Hard Bypass Switch removes FX Loops, Output Level & Solo Level Controls from signal path
Tuner Output w/Footswitchable Mute
Slave Out w/Level Control
Fan Cooled with On/Off Switch
External Switching Jacks for Channels 2, 3 (channel 1 is default), EQ & Solo
Aluminum Chassis New 4x4 - 8 Button Footswitch (Bottom Row: Channel 1, Channel 2, Channel 3, Solo Top Row: Reverb, FX Loop, EQ & Tuner Mute)
Slip Cover
Kitchen Sink, Ice Maker, Beer Cooler (just kidding) but easier to use than this list suggests (not kidding)!