Do Preamp jumpers really make huge difference like this guy claims? This reads like a shill piece or am I missing something? : r/audiophile
NEW Audioquest RCA Preamp Jumpers Stereo Cables Out Main Preamp Jumper sku1847 | eBay
AudioQuest Preamp Jumpers (1 Pair)
Why are these pre out / main in just connected like this? And also, would you use this to hook up a powered subwoofer? Technics SA-R921 receiver. : r/BudgetAudiophile