I have a 3000DSP and I will be running it in Dual Mono. I noticed yesterday it has a separate gain for ch. A, B. I also noticed on the software screen it has an input and output meter. I set the gain on my amp by playing a bass heavy track and adjusted the gain on the front panel till it starts to clip then backed it off one notch. Is this okay and I am only asking based on seeing the second gain setting on the software screen. Is there a more preferred way of setting the gain ?