David: I would definitely concur with Brent. I don't have experience with Harmonic Tech. cord, but was using original MIT cords and have listened to the XLO cords. I took a chance and bought 2 Edge Power Cords, and let me tell you they are excellent! They're good right out of the box and get better (much smoother and relaxed) with a couple weeks of break-in. I'm using one into my Arcam Alpha 8SE CD player and one into an Inouye Line Conditioner (which my CD player and Michell Gyrodek are plugged into). The combination of both cords has resulted in greatly increased resolution, with a "hear through" quality and transparency that just wasn't there before with the other cords. High frequency info is much clearer with less digital "hash and splash". Everything just sounds much more like real music, not reproduction! The turntable even sounds much better with the cord on the line conditioner. These cords are a great deal and are capable of letting you hear what your equipment is really able to do. And they're not expensive! Phenomenal value! Blake