@jasonbourne71 1++
If you were using 32 gauge wire bi wiring might be a benefit, but with Cornwalls if you are using anything larger than 18 gauge bi wiring will do absolutely nothing except waste your money. Bi amping with an electronic crossover is another story. With Cornwalls the best tweak you can run , by a country mile, is two subwoofers with a 2 way crossover set to 100 Hz. The Cornwall's woofer is responsible for a large part of the midrange and very low frequencies will cause Doppler Distortion. Adding subwoofers and removing those frequencies from the Cornwalls will clean up your midrange substantially and increase your headroom by about 10 dB.