A dsp will provide improvements in EQ power and crossover point/type selection. The graphic eq on the pioneer is a global eq that affects all channels at once. A dsp will provide you with parametric eq on each active speaker, which allows you to match the left and right side independently (which is the basis of a solid center image). The features of the pioneer are a good starting point to get an idea of using TA and EQ for a rough tune, but the power of DSP (in the right hands) will completely revolutionize the system.

Sent from my SM-N960U using Tapatalk