In my system different interconnects and speaker cables sound different. I have run blind tests and others have heard differences. They may be and usually are subtle but they are there and audible. My first wife could walk in the door hear my system in the den downstairs and tell if I had changed an interconnect. She had extraordinarily good hearing. She clued me in to some of the things she heard and didn't hear. She helped me become a better listener. Because my gear is better now than 25 years ago when I was married to her the differences are more audible.

Those who talk the loudest about wires and cables making no difference almost always own a receiver. The kinds of changes that I'm talking about are very subtle. Your average receiver (especially AV in 2 channel mode for music) and the speakers they are usually driving don't have the resolution to hear the subtle differences that wires and cables make. So, if you are using a receiver and don't hear the changes I'm speaking of please don't write a rude post about me and others being delusional and wasting money. I'm sorry, but your gear just isn't good enough to hear these things. Please don't complain about my "dissing" your gear. I'm not. I'm only speaking the truth.

I can't/won't speak about power cords yet. I've just purchased a couple of "high end" ones from usedcable.com and will post my findings fairly soon. Fairly soon being a month or two. Subtle changes that wires and cables produce need some time to be noticed. The DBT scheme of ten second samples with a given device doesn't work with subtle differences. In my opinion, small and or subtle differences are only discernible under long term listening. Simply connect a device, cable or whatever. Listen to it for 10 days or so. Keep informal notes of your listening observations. Change to the other "whatever" and repeat the test. If you report no differences that's OK. It means you can save some money on things that sound the same by purchasing the cheaper one. If you hear differences, well, welcome to the club. Your audio life just got a lot more complicated.

All receiver owners who disbelieve this are cordially invited to come over for a demonstration. I'll be more than happy to demonstrate the differences in cables and wires. We can listen to some music and cure the worlds ills. Please bring some beer as a gift for the host. If you don't hear a difference, so what. We'll drink some brew listen to some music and have fun. Visitors bringing any kind of light beer will be refused entrance. I may even sic my dog Electronimo on them.