Forum to discuss all matters relating to the MPC1000 and MPC2500 operating systems created by 'JJ' (all versions).
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By Scherer Fri Jul 07, 2023 12:19 pm
Hi guys,

thinking about upgrading my MPC to JJOS2XL and recognised that when purchasing a key, you also seem to get access to JJOS3.

The JJ comparison chart shows a load of different features… does someone possibly have experiences to share, where JJOS3 is better than OS2XL? How’s the performance? What are the main workflow differences between these two? What else to know?

By alexbuga Wed Sep 06, 2023 11:08 am
There's a comparison chart on the JJOS website

In OS3, you get lazy chop, and a few nice workflow improvements, but you lose some (important for me) features for sound design like LFO, aftertouch, etc.

Also projects are not cross compatible, so I suggest you save OS3 projects in a separate folders (don't be like me). You can then swap back & forth between OSs. Although I wouldn't recommend doing it on a daily basis not to damage the flash memory.
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By inflict3 Thu Sep 07, 2023 4:17 am
Jjos3 is like a breath of fresh air for your mpc.