Yes, definetely. The 1/3 octave EQ for each channel is almost a must for fine tuning the sound, plus the x-overs control is much better. In the hands of a good tuner it will make your system sound much better.
As for the rest of your system, it helps to hear it to determine it's weak points. I suppose it's OK, I would want more bass than 2 8's, but it's up to you.