What is ultimate for one person is different for another, since a while back, I thought having a combo of a Roland V-Synth GT ver 2.0 and a Roland G70 together would have worked for me.
Now I would be happy with a Korg Pa4X 61 and a Nord 6D 61, but each to their own.
Allan
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The problem is not the problem...The problem is your attitude to the problem.