I'm far from an expert but I will give to you a few of my thoughts. The most immediate change I would make are your interconnects/speaker wires. The line conditioners you mentioned are not going to give you as much improvement as changing the interconnects/spk. wires. I would replace your electrical outlet which supplies power to your equipment. This very inexpensive change could yield noticeable results.
Turn off all dimmer switches/fluorescent lights when listening to your stereo. Don't go over-board w/magazine reviews. I've found that in most cases you get what you pay for. (Buy used and save a bundle.) Buy a turntable and some records. Bill
Turn off all dimmer switches/fluorescent lights when listening to your stereo. Don't go over-board w/magazine reviews. I've found that in most cases you get what you pay for. (Buy used and save a bundle.) Buy a turntable and some records. Bill