1985 Mesa Boogie Mark IIc+ Simul-Class Black

SOLD!
Who buys vintage guitar amps? We do!
Call 530-570-1525 or email sales@maharsvintageguitars.com to sell your vintage guitar amp, guitar, bass, amplifier, etc - one piece or a collection! We are always ready to buy instruments, amps and effects from Fender, Gibson, Martin, Epiphone, Rickenbacker, Gretsch, Marshall, Vox and just about anything else related to musical instruments.

Considered to be the best amplifier Boogie ever made, the Mark IIc+ became the go to and the signature sound of Metallica, Prince and many others.  

Examples in this condition are extremely hard to find.  The amp was officially in production for a little over one year, with fewer than 3000 produced in total.

This particular amp was signed at the time of completion under the chassis in March or 1985.  The amp is just about perfect in every way.  It has always been stored under the original cover, which is included.  It was brought to Boogie within the last 5 years by our friend, the original owner, to be fully checked and serviced.  The speaker and footswitch are original, though we don't have a cable for the switch.

Everything functions just as it should and the tone is as you'd expect.  This is one killer amp!

*Shipping will be expensive.  To protect the amp from damage, we will ship it in three boxes: one for the speaker, once for the chassis, and one for the cabinet.  Assembly will be required on arrival.  If you are not comfortable with assembling the amp, please make arrangements to pick it up in person.  The weight of the speaker and chassis can cause damage to the cabinet or chassis when shipped as a single piece.

Some history on Mark II amp history for those who would rather not Google:

"The Mesa Boogie Mark II was introduced in 1978. It was the first ever guitar amplifier to feature channel switching, or more specifically, Mode Switching, as denoted by its patent application.

The Mark IIB was released in 1980, and it was the first guitar amplifier with a buffered effects loop. It was later offered in Simul-Class versions, whereby two power tubes operated in Class AB while the other two operated in Class A. At this point, the Mark II became known as the Mark IIA internally.

The Mark IIB used relays to facilitate switching channels, which made a loud “pop” when the channels/modes were swapped while guitar signal was present. So, despite the useful effects loop and great tone, it was retired for the next model in late 1983 in an effort to reduce this switching noise and improve the effects loop.

The Mark IIC was introduced in 1983, which remedied the Mark IIB’s noisy switching. However, further development revealed that its updated effects loop placement didn’t prove as optimal as initially thought. It was updated with an improved effects loop that also benefited the sound and dynamic sense. This update was signified internally by a “+” sign added in magic marker on the rear of the chassis above the power cord, thus creating the Mark IIC+.

The Mark IIC+ featured several updates to the initial IIC design, including an EQ Auto function on the EQ toggle that automatically triggered the Graphic EQ in the Lead Mode. An “Auto” option for the existing “Treble Shift” feature was also added to the Treble control’s “Pull Shift” that did the same. Additional revoicing of the preamp was included. The result was a more aggressive, more dynamic voice that was focused in the midrange, authoritative yet vocal in the top end, and super tight in the low end. This revoicing made it supremely well-suited to soaring lead sounds and huge crunch chords (with the EQ engaged), and it was catapulted to the forefront of pop and heavy music styles, with rock’s biggest artists increasingly using Mark IIC+ models for their recording and touring.

Mesa Boogie customers who had initially bought IICs were invited to send their IIC amplifiers back to the factory to have the IIC+ modifications performed, which Mesa Boogie didn’t charge for until demand for the modifications started to affect the production of new amplifiers. Well into the future and long after IIC+s earned their legendary status, Chief Mesa tech and Mesa Boogie’s longest-standing employee, Michael Bendinelli, continued to make the modifications for those who found and bought IIC models on the preowned market, though understandably, there was a charge for this service.

The Mark IIC+ proved to be a huge success and in hindsight, one of the most important guitar tone milestones of the 80s; a significant era for guitar and its radio popularity. Yet, despite its impact, the IIC+ remained in production for only a little more than a year, and a total of just under 3000 units were built before the amp was replaced by the feature-updated, 3-mode Mark III in 1985. However, its impact on the world of guitar and especially heavy music remains relevant, and it continues to be the most coveted vintage Mesa Boogie amp. So much so that subsequent Mark amplifiers such as the Mark V and JP 2C have included the infamous IIC+ circuit as the staple high gain lead channel."

Case/Cover?: Yes
Color: Black
Dimensions: 18" x 18.5" x 10.75"
Weight: 68lbs
Watts: 75 Watts
Date: 1985
Where is Date Noted?: Chassis
Speaker 1 Brand/Model: EV
Speaker 1 Size: 12"
Speaker 1 Cone: Original
Power Transformer Brand/Codes: Mesa 105-162318  EIA606-435
Output Transformer Brand/Codes : Mesa SC152019B  EIA606-425
Choke Transformer Brand/Codes: Mesa 38-15115  EIA606--424
Reverb Transformer Brand/Codes: Mesa 185225  EIA606--346
Extension Speaker Out? Yes
FX Loop?: Yes
Reverb or other effects?: Reverb
Power Tubes: 4 x 6L6
Power Tube Brand: Mesa
Preamp Tubes: 5 x 12AX7
Preamp Tube Brand: Mesa
Filter Caps: Original
Pedal: Rhythm/Lead Footswitch, no cable
Pots, Codes: Original, 137 8347
Grille: Original
Knobs: Original
Handle: Original
Power Cord: Original
Notes:

Shipping policy:
Shipments will require signature on delivery, no exceptions.  If there is damage, the buyer must retain all packing materials intact and picture them immediately and send them to sales@maharsvintageguitars.com.  Less than 1% of our shipments are damaged in transit, and we are committed to making sure your item arrives safely, but we are taking these additional measures to make sure you are happy with your purchase.