There were many folks that dissected the JP2C for what it is not. It is not a IIC+ HRG, well Duh, look at the controls on the front panel, is that not enough to see what is missing? I believe there was only one GEQ on the HRG model. I do not recall any midi or cab clone on the originals. Let alone the guts did not look like this:
I may never have owned or played through an original IIC+ and at their going prices I doubt I ever will. Sure, I had a Mark III DRG combo, I do have some regrets selling it off back in 2012. I am over it. I bought into the JP2C for what it was and not for what it was not. Not a dream theater follower, actually never heard of John Petrucci before the JP2C was announced. I bet he is a cool dude, and watching some of his videos on the subject and other things he has done, he has my respect. Thanks to his efforts and working with Mesa we get a fine amp to use. Get the right power tubes in this amp and it just rips. I bought mine in 2016 after they did the roach mod (you can see the added parts to the gain pot in the bottom left of the image) as it had something to do with the send level of the clean channel in the FX loop. I believe the marketing hype centered around that it is a Reissue.
And YES, it’s a MARK IIC+! A next generation Re-Issue of the legendary amp so many Recording Artists, MESA enthusiasts and Tone Freaks the world over covet, often searching high and low to find. Only THIS IIC+ pulls in an enhanced feature set born from our collaboration with John over a period of three decades of research and development.
I can say it does sound good and is a keeper for me anyways.
If you can read and understand what it is you are looking at when it comes to the chicken scratch of the older designs to something more readable of recent designs in the Mark Line up. The heart and soul of the IIC+ circuity still present. Sure, with tweaks and changes of this and that in hopes to redefine the next generation Mark amp. The Mark V90 was a bit of a stretch in some ways to include other features either loved or hated by owners of the amp. It is just an evolution of an amp first built in the 80's. The first 4 gain stages minus a volume 1 pot right off of the tone stack to drive V1B stage. Most of the major mods occurred on the back end of the amp, the exception to this was the Mark V. The JP2C did bring back some of that classic circuitry but with a modern approach due to LDRs and transformers. It was a good starting point for the next best thing, the Mark VII. sure it has its characteristic issues with different signal levels in the FX loop as some have discovered. The kitchen sink was still added into the mix much like it was with the mark V, but at least all modes are great. Not enough emphasis on the IIC+ or IV modes as that is only on one channel. I can say one thing that the Mark VII is another killer amp.
Considering the short print of specs I would speculate that the output section is based on the Mark VII in many ways, and it does deliver that sound so I would expect the IIC+ IR to be on similar footing. It is not that far off of the JP2C when comparing the IIC+ mode. Just revise the preamp section to the original design and you will get what they promise. It will have the appearance of the IIC+ on the outside until you look at the back and see all 6L6GC tubes. Layout may also be a bit different. I would assume to meet requirements it has a removable power cord like most Mesa amps these days. Just take out all of the relays that alter most of the signal paths and control connections and it is not hard to realize it is possible to recreate the IIC+. Getting it to sound authentic is the harder part and I have faith that Mesa engineers can pull it off. Not sure why Randall never wanted to go back to an iconic amp. We will find out soon enough if Mesa delivered their promise and will it pay tribute to an amp that most of us cannot afford. After 40 years since the IIC+ amps rolled out, I would not expect an exact replica of the original in terms of nuts and bolts, boards, wires, etc. But I will expect the same quality of sound and build that Mesa has provided with their amps. OK, I am being optimistic here as I committed to buying one of these amps. It may just be my last amp I buy for some time to come. Prices just keep going up and I am tired of spending money. If they do a reissue on the Road King I may not be able to resist the urge but will hold off and wait and see what others say about it.