Obviously you need to spend $150 on a power cable because the other power cables slow down the electricity. But that's like putting a "NO FEAR" sticker on your Ferrari without the 22" chrome wheels. POINTLESS. THINK about it. Your $150 power cable is probably connected to a cheap consumer grade electrical outlet. They're probably made in China and designed to be as cheap as possible without catching on fire. That's not good for full spectrum sound response! DUH! Quit being such an amateur and upgrade today. You'll hear the difference immediately. Once you try these babies out, you'll never go back to those cheap consumer-grade electrical outlets. Full disclosure: I am not paid or compensated in any way for my endorsement. Tru-Tone Duplex covers Fuller disclosure: This endorsement is for amusement purposes only. However, I CAN play quarter notes at DOZENS of bpm, and I can tune a bass guitar without an electronic tuner, INCLUDING drop-D.