Get rid of those crappy transparent speaker cables those resistor networks screw up everything if you really want to try a good speaker wire that just lets everything good or bad through switch to OCC single crystal wire it has been proven now for 40 years to be the best wire for audio.
Why did you choose the components and speakers that are in your system?
I have an opportunity to build another system and I'm looking to mix up the sound I seek and it occurred to me to ask the 'goners! So..... why did you choose the components in your current system? In other words- what was important to you when building it?