Adding additional PEQ bands to DSP Crossover by “re-amping”

I have a pair pf speakers in my secondary system that I’d like to better tune the response and I have a spare DSP, a Dayton Audio DSP-408, which offers 10 PEQ bands per channel. Without bi-amping and adding another amp, is it possible to add another 10 bands of PEQ per channel by re-amping, that is routing the stereo outputs back into the channels 3-4 inputs, then out to the amp, being mindful of the gain?