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Multi-Watt™ 10, 45 or 90 (Channel Assignable)

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

Graphic EQ, Reverb, FX Loop & Solo

Foot switchable Functions

Ch. 1, 2, 3, Solo, Reverb, FX Loop, Graphic EQ, Mute

Speakers Impedance

1 - 8 Ohm Celestion Custom 90 / Total Load = 8 Ohms


65 Lbs.


18 3/4" H x 22 3/4" W x 11 1/2" D

Available Formats

Head & 1x12 Combo

Amp Type


Rectifier Type

Selectable Dual Rectification (Ch 1 & 2 - 45 watt modes) with Patented Recto Tracking™ (Patent 7,193,458). Recto Tracking™ auto-matches the correct Rectifier compliment for the number of Power Tubes in use. 10 Watt Modes = Tube Rectification, 45 Watt Mode = Selectable Tube or Silicon Diode Rectification on Channels 1 & 2 - Silicon Diode only on Channel 3, 90 Watt Mode = Silicon Diode Rectification.

Rectifier Tubes

1x Mesa 5U4

Variac PowerSwitch

Full/Tweed Power Switch

Preamp Tubes

7x Mesa 12AX7

Power Amp Tubes

4x Mesa 6L6 (or EL-34)

Maintenance Free Fixed Bias


Wattages Quick Reference

10, 45 or 90 Watts - Channel Assignable - See Power Amp Details for more information

Built In Power Amp Attenuation


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

Number Of Style Modes


Number Of Style Modes Per Channel


Channel Controls

Each Channel features Independent 3-Position Style Mode Switch, Graphic/Contour 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 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) - 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

Graphic Eq And/or Contour

Selectable 5-Band Graphic EQ and Contour (Footswitchable, Channel Assignable or Off)

Reverb Effects Bypass Options

Footswitchable, All-Tube, Long Spring Reverb with Independent Channel Controls (back panel)

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

Global Output Level Control

Yes (Over all channels when activated) - See True-Bypass Options below for more information

Global Solo Level Control

Yes (Over each channel when activated) - See True-Bypass Options below for more information

True Bypass Options

True-Bypass Switch removes FX Loop, Output & Solo Level Controls

External Switching Jack Options And/or Midi

External Switching Jacks for Channels 2, 3 (Ch. 1 is default), EQ & Solo

Speaker Outputs

Two 8 Ohm and Two 4 Ohm

Cabinet Simulation Direct Live recording Output


Internal Amp Load For SpeakerLess Performance


Headphone Output


Slave Output

Yes with Level Control

Extra Features



Included - 4x4 - 8 Button Footswitch (Bottom Row: Ch. 1, Ch. 2, Ch. 3 & Solo - Top Row: Reverb, FX Loop, EQ & Tuner Mute)

Slip Cover

Included - Fitted Slip Cover

Cabinet Material

Marine Grade, Baltic Birch

Standard Finish Options (No Extra Cost)

Black Bronco Vinyl, Black Jute Grille, Black Handle & Corners

Custom Finish Options

See Custom Finish Gallery

Speakers Impedance

1 - 8 Ohm Celestion Custom 90 / Total Load = 8 Ohms


Included - Track-Loc™ Removable Casters

Extra Features



65 Lbs.


18 3/4"


22 3/4"


11 1/2"

Disclaimer: In order to continually improve the design, quality and performance of our products and to use the best materials at all times, MESA/Boogie reserves the right to substitute or change specifications (including parts or coatings) without notice.



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