The MARK V™ is really a collection of amplifiers. There are far too many circuits and sounds to think of it as merely an amp. It is also a living history of our company. From the groundbreaking MARK I™ that introduced the world to high-gain with it’s cascading pre amp, to the Mark II™ - the world’s first high gain Dual Mode Channel Switching amplifier and it’s later siblings that introduced Simul-Class™ power. From the MARK III™ that ushered in the era of 3 Channel footswitching performance, to the MARK IV™ which gave all this power individual control, the MARK V is the embodiment of the last 40 years of guitar amp history.

Mesa Boogie Mark V112 Features:

• Wattage Multi-Watt™ 10, 45 or 90 (Channel Assignable)
• Power Tube Type 4x6L6 (or EL-34)
• Channels & Modes 3 Channels / 9 Modes
• Mode Voicings / Styles Ch. 1 = Clean, Fat or Tweed
  Ch. 2 = Edge, Crunch or Mark I™
  Ch. 3 = Mark IIC+™, Mark IV™ or Extreme
• Graphic EQ / Reverb / FX / Solo Reverb, FX Loop & Solo
• Footswitchable Functions Ch. 1, 2, 3, Solo, Reverb, FX Loop, Graphic EQ, Mute
• Speaker(s) & Impedance 1 - 8 Ohm Celestion Custom 90 / Total Load = 8 Ohms
• Weight 65 Lbs.
• Dimensions 18 3/4" H x 22 3/4" W x 11 1/2" D
• Available Formats Head & 1x12 Combo

Mesa Boogie Mark V112 Specifications:

• Amp Type Tube
• Chassis Material Aluminum
• Rectifier Type Tube or Silicon Diodes with Patented Rectifier Tracking™ (Auto-matches 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 - Patent 7,193,458)
• Rectifier Tubes 1x Mesa 5U4GB
• Variac Power Switch Tweed Power Switch
• Preamp Tubes 7x Mesa 12AX7
• Power Amp Tubes 4x Mesa 6L6 STR 440
• Bias Switch for Alternate Power Tubes Types Bias Select for 6L6 or EL-34
• Maintenance Free Fixed Bias Yes
• Wattage(s) Quick Reference 10, 45 or 90 Watts - Channel Assignable - See Amp Details above for more information
• Built-In Power Amp Attenuation n/a
• Power Amp Details (Class & Wattage) Mesa's exclusive Simul-Class™ Power Amp 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 Mesa's legendary Simul-Class™ Power that blends the best of Class A and Class A/B simultaneously to produce 90 Watts of pure tonal magic
• Convection or Fan Cooling Fan Cooled with On/Off Switch
• Number of Footswitchable Channels (or Modes) Three Channels
• Number of Style Modes Nine
• Number of Style Modes Per Channel Three
• Types of Style Modes Per Channel Ch. 1 = Clean, Fat or Tweed
  Ch. 2 = Edge, Crunch or Mark I™
  Ch. 3 = Mark IIC+™, Mark IV™ or Extreme
• Channel Controls Each Channel features Independent 3-Position Style Mode Switch, EQ Assignment Switch (On, Off or Footswitchable), 90/45/10 Watt Multi-Watt™ Switch Gain, Treble, Mid, Bass, Presence, Master, Footswitchable or Auto- Assignable Contour Depth Control, Footswitchable All-Tube, Long Spring Reverb Control, Patented 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 - Patent 7,193,458)
• Graphic EQ and/or Contour 5-Band Graphic EQ and Contour
• Reverb / Effects & Bypass Options All-Tube, Long Spring Reverb with Independent Channel Controls - See True-Bypass Options below for more information
• Effects Loop & Bypass Options Fully Buffered Series FX Loop w/Send Level Control - Footswitchable, Channel Assignable or True Bypassable - See True-Bypass Options below for more information