E-Loops are built by Exemplar Audio, a company that makes reference-level amps and preamps. Stillpoints was so impressed, it offered to distribute them. E-Loops clean up the ground plane and allow the signal to flow unimpeded. You will hear increased microdetail through a reduction in the noise floor, and added realism from any musical presentation. Each set comes with either two banana or two spade connectors for your amplifier’s negative speaker terminals, plus one pair of RCA E-Loops for connection to any unused input.