im still confused on pros and cons on locking LR or all or all unlocked and also Q setting.
Locking L/R is simply a convenience feature. Leave it locked. The empeg's equalizer has the ability to control the left side and the right side separately. In some rare situations, you might want to unlock it so that you can EQ the left channel differently than the right. But it's so rare that I hesitate to even mention it. Usually, you want to EQ the left and the right exactly the same way.
As was mentioned before, the "Q" and bandwidth settings are explained in the FAQ forum of this BBS. However, in your case, I strongly suggest that you don't touch the Q or bandwidth settings at all. If using a plain-old equalizer is confusing you, then you've definitely got no use for the parametric functions yet.
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Tony Fabris