I will try the biamping ( don't know if I pronounced this right) tomorrow. The jumper piece is currently on the speakers which bridges the tweeter and woofer together. Tomorrow , I will run another wire and connect each one to each post, then combine them at the 1050. Hope this helps. I do understand it's a linear volume. Just seems like at lower levels on the bottom of the line sony I have " still " has more bass at lower levels even.
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I just didn't think they made radios like this anymore then ....there's Outlaw !!