The Return of a Galactic Legend

At Interstellar Guitars, we’re honored to welcome back a true star-forged icon: the Mesa/Boogie Mark IIC+ Reissue. Revered across the galaxy for four decades, the IIC+ remains one of the most mythic amplifiers ever built—now reborn with every ounce of its original fire.

Based on the groundbreaking Mark II Dual-Mode architecture, the IIC+ delivers pure vintage Boogie energy with separate Rhythm (clean) and Lead (overdrive) modes sharing a deceptively simple single row of controls. Interactive gain stages, classic PULL SHIFT voicing, and the legendary 5-Band Graphic EQ give you deep control over every tonal constellation—from crystalline cleans to molten lead tones that shaped entire eras of rock guitar.

On the rear panel, modern practicality meets vintage soul: a buffered FX loop, global Presence and Reverb, multiple speaker outs, and a Power Select switch offering either 75-watt SIMUL-CLASS authority or 25-watt Class A warmth and earlier clip. The SLAVE output captures the full essence of the amp for IR loaders, wet/dry/wet rigs, and studio missions.

Painstakingly recreated after 40 years out of production, the Mark IIC+ Reissue is more than a tribute—it’s a resurrection. If you want legendary tone without hunting vintage relics, crave focused, articulate firepower, and prefer a classic layout over multi-mode galaxies, this amp is your destiny.

Be warned: once you play a IIC+, your perception of guitar tone may never return to Earth.

Format: Head
Channels/Modes: Single Channels Dual Mode (Rhythm & Lead)
Mode Voicings: RHYTHM - Traditional Clean to Vintage Gain, Independent Volume 1 (Gain) with Pull Bright & Master 1 with Pull Deep Controls to set initial gain independent of playing volume LEAD – Cascading High-Gain (Lead), Utilizes Volume 1 to set initial gain strength then features Independent Lead Drive (Gain) with Pull Lead (to manually mode switch) & Lead Master with Pull Bright Controls to adjust the level of cascading gain independent of the playing volume
Channel Controls: RHYTHM/LEAD Shared Controls: Volume 1 (sets initial gain strength for both channels), Treble, Bass, Middle, Assignable/Foot-Switchable 5-Band Graphic EQ, Reverb & Presence
Power Tube Type: 4x 6L6  
Graphic EQ: Selectable 5-Band Graphic EQ (Footswitchable, Channel Assignable or Off)
Fixed Bias: Yes
Power Amp Details: Simul-Class™ Power Amp – Provides the benefits of vintage Class A and modern Class A/B running simultaneously
Preamp Tubes: 5x 12AX7
Rectifier Type: Silicon Diodes
Fan Cooled: Yes
Effects Loop: Tube-Buffered (Series)
Reverb: All Tube, Long Tank Spring Reverb 
Slave Output: Yes, with Level Control
Wattage: 75 or 25 Watts (Global) 
External Switching / Midi: Reverb & Graphic EQ External Switching Jack
Speaker Outputs: One 8 Ohm and Two 4 Ohm
Foot Switchable Functions: Modes, Reverb & Graphic EQ
Chassis Material: Steel
Cabinet Material: Marine Grade Baltic Birch
Dimensions: 9 1/4" H x 18 3/4" W x 10 3/8" D
Weight: 39Lbs
Accessories: 1x Single Button = Modes, 1x 2-Button = REV/EQ, Fitted Slip Cover