This is a 1984 Mesa/Boogie Mark IIC+, the most sought-after amp of the Mark series and the sound behind the tight, aggressive high-gain tones of mid-'80s thrash and fusion. This head has the C++ modification done by Mike B. It's Mesa's own revision of the IIC+ lead circuit, made famous by Metallica's rigs, and it gives a hotter, more saturated lead channel while keeping the IIC+'s clarity and tight low end. It's fully loaded: Simul-Class power with four 6L6GC tubes, the footswitchable 5-band graphic EQ that defined the Mark sound, spring reverb, an effects loop, a slave out and a cooling fan. The serial number places it in the original 1984-85 C+ production run, and the "++" is hand-marked on the rear panel.

This amplifier is in excellent condition. Someone marked their go-to settings with paint pen on the knobs and the faceplate. The reverb tank has been taken out of the chassis; it works and comes with the amp, ready to reinstall.

Specifications

• Make: Mesa/Boogie
• Model: Mark IIC+
• Modification: ++ (C++) mod by Mike B
• Serial #: 12803
• Year: 1984
• Country: Made in USA (Petaluma, CA)
• Condition: Excellent
• Color: Black Tolex
• Type: Head
• Power Output: 75W Simul-Class / Class A (selectable)
• Power Tubes: 4 x 6L6GC
• Preamp Tubes: 5 x 12AX7
• Channels: 2 (Rhythm / Lead)
• Front Controls: Volume 1 (Pull Bright), Treble (Pull Shift), Bass (Pull Shift), Middle, Master 1 (Pull Deep), Lead Drive (Pull Lead), Lead Master (Pull Bright)
• Rear Controls: Presence, Reverb, Slave Level, Ground Toggle, Simul-Class / Class A Switch
• Graphic EQ: 5-band (80 / 240 / 750 / 2200 / 6600 Hz)
• Reverb: Spring (tank uninstalled, included)
• FX Loop: Yes (Send / Return)
• Slave Out: Yes, with level control
• Speaker Outputs: 1 x 8Ω, 2 x 4Ω
• Cooling Fan: Yes
  

What's Included

• Mesa/Boogie Mark IIC+ Amp Head
• Reverb Tank (uninstalled)