REISSUE Rumor: Mark IIC+ and 2ch Recto

[Doug Doppler]

Wanted to take a moment and wish everyone here a heartfelt HAPPY HOLIDAYS. This is a great community that I'm grateful to be a part of - thank YOU

 

[bandit2013]

I thought I remembered the reference on the JP2C in relation to the fixed resistors in place of the Volume 1 control. the channel mods the fixed resistor values in place of the Volume 1 pot, the pull on the gain also changes that as well. Been a while since I looked at the manual for the JP.

PULL GAIN This feature, along with the PULL voicing on the PRESENCE controls, was not on the original II-C+ amplifiers. We have added both in response to John’s questions and wish list of features. The PULL GAIN allows a slight BOOST… what amounts to a number more, on the (missing here) VOLUME 1 Control as it applied to the original MARK II-C+. Again, that control is preset internally after MUCH testing and consideration as to John’s requirements and our own feelings about the optimum setting of this sensitive part in the circuit. To describe what occurs in the pushed-in and pulled-out Modes in MARK II-C+ terms, it is basically like having two VOLUME 1 settings; In Channel 2–the slightly lower gain “Crunch Rhythm Channel”–that offers the un-activated, pushed-in setting of about 6.0 (or 1:00) and the activated PULL setting of 7 ¼ (or 2:15) or so. In Channel 3–the hotter “Lead Channel”–it shakes out like this; an un-activated, pushed-in setting of approximately 7 ½ (or 2:30) and the activated, PULL setting of 9.0 (or 4:00). The settings are referred to here as “approximately” or “about” because no two pots are ever exactly identical resistance-wise, and there is a fair amount of play in the older MARK II-C+ Pull Pots, so the number settings are general reference points and are approximate. The actual settings here in the JP-2C are achieved with a network of resistors per Mode (internally preset “missing” pot) with values that were arrived at through relentless scrutiny and are very precise.

 

[Joey1970]

I thought I remembered the reference on the JP2C in relation to the fixed resistors in place of the Volume 1 control. the channel mods the fixed resistor values in place of the Volume 1 pot, the pull on the gain also changes that as well. Been a while since I looked at the manual for the JP.

PULL GAIN This feature, along with the PULL voicing on the PRESENCE controls, was not on the original II-C+ amplifiers. We have added both in response to John’s questions and wish list of features. The PULL GAIN allows a slight BOOST… what amounts to a number more, on the (missing here) VOLUME 1 Control as it applied to the original MARK II-C+. Again, that control is preset internally after MUCH testing and consideration as to John’s requirements and our own feelings about the optimum setting of this sensitive part in the circuit. To describe what occurs in the pushed-in and pulled-out Modes in MARK II-C+ terms, it is basically like having two VOLUME 1 settings; In Channel 2–the slightly lower gain “Crunch Rhythm Channel”–that offers the un-activated, pushed-in setting of about 6.0 (or 1:00) and the activated PULL setting of 7 ¼ (or 2:15) or so. In Channel 3–the hotter “Lead Channel”–it shakes out like this; an un-activated, pushed-in setting of approximately 7 ½ (or 2:30) and the activated, PULL setting of 9.0 (or 4:00). The settings are referred to here as “approximately” or “about” because no two pots are ever exactly identical resistance-wise, and there is a fair amount of play in the older MARK II-C+ Pull Pots, so the number settings are general reference points and are approximate. The actual settings here in the JP-2C are achieved with a network of resistors per Mode (internally preset “missing” pot) with values that were arrived at through relentless scrutiny and are very precise.

 

[Joey1970]

The combination of the VOL1 control and Lead Drive control settings really depends on the guitar that you are using. That is why I like the original setup.

 

[Joey1970]

I thought I remembered the reference on the JP2C in relation to the fixed resistors in place of the Volume 1 control. the channel mods the fixed resistor values in place of the Volume 1 pot, the pull on the gain also changes that as well. Been a while since I looked at the manual for the JP.

PULL GAIN This feature, along with the PULL voicing on the PRESENCE controls, was not on the original II-C+ amplifiers. We have added both in response to John’s questions and wish list of features. The PULL GAIN allows a slight BOOST… what amounts to a number more, on the (missing here) VOLUME 1 Control as it applied to the original MARK II-C+. Again, that control is preset internally after MUCH testing and consideration as to John’s requirements and our own feelings about the optimum setting of this sensitive part in the circuit. To describe what occurs in the pushed-in and pulled-out Modes in MARK II-C+ terms, it is basically like having two VOLUME 1 settings; In Channel 2–the slightly lower gain “Crunch Rhythm Channel”–that offers the un-activated, pushed-in setting of about 6.0 (or 1:00) and the activated PULL setting of 7 ¼ (or 2:15) or so. In Channel 3–the hotter “Lead Channel”–it shakes out like this; an un-activated, pushed-in setting of approximately 7 ½ (or 2:30) and the activated, PULL setting of 9.0 (or 4:00). The settings are referred to here as “approximately” or “about” because no two pots are ever exactly identical resistance-wise, and there is a fair amount of play in the older MARK II-C+ Pull Pots, so the number settings are general reference points and are approximate. The actual settings here in the JP-2C are achieved with a network of resistors per Mode (internally preset “missing” pot) with values that were arrived at through relentless scrutiny and are very precise.

 

[Fiveband]

Has anyone with Mesa connections tried to order a replacement 2C+ faceplate to replace a scratched up OG?

 

[IronSean]

Came across this today and had to laugh out loud... although it is over the top and not 100% based in reality, IMHO. But the fact that some dude went to this level of effort to write and record this catchy tune about such an esoteric topic was pretty funny. Hopefully you folks can appreciate at least the silliness of stuff we sometimes take too seriously (myself included!).

And for the record, the non-metal tones dialed in by Mr. D sounded good to me, good meaty rock and roll tones. The Sweetwater video was kind of hard to watch, though.

The same channel also has a good song about appreciating your amp tech!

He didn't write and record that, that's the output of an AI song generation tool where you feed it a genre and topic and it generates the lyrics and music and outputs the song. It's fun for making quick joke songs about your friends hair or whatever.