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Multi-Watt™ 25, 45, or 90 (Channel Assignable)

Channels & Modes

3 Channels / 9 Modes

Mode Voicings styles

Ch. 1 = Clean, Fat, or Crunch Ch. 2 = Fat, Crunch, or Mark VII™ Ch. 3 = Mark IIB™, Mark IIC+™, or Mark IV™

Graphic Eq Reverb Fx Solo

Graphic EQ, Reverb, FX Loop, CabClone IR

Foot switchable Functions

Ch. 1, 2, 3, Reverb, FX Loop, & Graphic EQ

Speakers Impedance

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


58 Lbs. / 26.31 kg.


18 1/4" H x 18 3/4" W x 11 1/2” D 46.36 cm H x 47.63 cm W x 29.21 cm D

Available Formats

Head, Rackmount Head, & 1x12 Combo

Amp Type


Rectifier Type

Silicon Diodes

Rectifier Tubes


Variac PowerSwitch


Preamp Tubes

5x Mesa 12AX7

Power Amp Tubes

4x Mesa 6L6 (or EL34)

Maintenance Free Fixed Bias


Wattages Quick Reference

25, 45, or 90 Watts - Channel Assignable - See Power Amp Details for more information

Built In Power Amp Attenuation


Power Amp Details Class Wattage

MESA/Boogie's exclusive Simul-Class™ Power Amp featuring Multi-Watt™ (Patent 7,602,927) with Incremental Wattage Reduction (Patent 9,917,560) which provide three power and two operating-class options that are channel assignable via 25/45/90 Watt Power Switches: Choose 2 power tubes operating in Class A Triode, producing 25 Watts - 2 tubes running in Class A Pentode, producing 45 Watts, or 4 tubes running in MESA/Boogie’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 EQ Assignment Switch (On, Off or Footswitchable), Patented Watt Multi-Watt™ 90/45/25 Power Amp Switch, Gain, Treble, Mid, Bass, Presence, & Master Controls, Reverb (Footswitchable), and an 8-Position CabClone IR Select Control (back-panel)

Graphic Eq And/or Contour

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

Reverb Effects Bypass Options

Footswitchable, All-Tube, Long Spring Reverb with Independent Channel Controls

Effects Loop Bypass Options

Tube-Buffered FX Loop (Footswitchable)

Global Output Level Control


Global Solo Level Control


True Bypass Options


External Switching Jack Options And/or Midi

MIDI Switchable/Programmable via Control Change and Program Change messages, with 256 Preset Location (MIDI IN, MIDI Thru/Out, MIDI Channel, & Store Switches) – Controls Channels 1, 2, 3, Reverb, FX Loop, & Graphic EQ

Speaker Outputs

Two 8 Ohm and Two 4 Ohm

Cabinet Simulation Direct Live recording Output

Built-in, channel assignable, MESA CabClone™ IR Cab Simulator featuring 8 MESA Cabinet IRs, USB Connection for IR transfers, Internal Amp Load for cabinet-free use, Input Level Control, IR Balanced XLR Direct Output, (Dry) Line Output (Uncompensated, +4db Direct Line Output for external cab sim/IR use, Re-Amping, etc.), Headphone Output, IR Output Level Control & Ground/Lift Switch

Internal Amp Load For SpeakerLess Performance

Yes (see Cabinet Simulation for more information)

Headphone Output

Yes (see Cabinet Simulation for more information)

Slave Output


Extra Features



Included - 3x3 - 6 Button Footswitch (Bottom Row: Ch. 1, Ch. 2, & Ch. 3 - Top Row: Reverb, FX Loop, & Graphic EQ)

Slip Cover

Included - Fitted Slipcover

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



Extra Features



58 Lbs. / 26.31 kg.


18 1/4" / 46.36 cm


18 3/4" / 47.63 cm


11 1/2" / 29.21 cm

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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