Neptune Diamond

Purist Audio Design’s Diamond Revision Neptune series cables represent the pinnacle of our Fluid shielded cables! Every cable in Neptune series utilizes our refined, patented Fluid Damping Technology. For years, our Fluid Damping Technology has been a favorite among audiophiles, delivering a warm tone and delicate midrange performance. The interconnects use 22 AWG single-crystal copper conductors. Compared to Venustas series, Neptune cables offer a wider soundstage and reveal astonishing detail in the midrange! These cables deliver breathtaking musicality, allowing listeners to be completely immersed in the music! They are available in both single-ended (RCA) and balanced (XLR) configurations. If your system requires a custom configuration, please contact us. We can customize to your needs!

As part of Purist Audio Design’s Diamond Upgrade Program, we’ve redesigned and significantly improved the RCA connector, using beryllium copper and increasing the thickness of the gold plating. Additionally, we’ve also significantly improved the XLR connector, using beryllium copper and gold-plating the leads.
Neptune Interconnect Technical Specifications
Conductors SCC
Metals Copper
Shielding Braid 100%
Dielectric Material P.P.
gauge (effective) 22 AWG
Dampening Material Fluid
Capacitance 30 pF/FT (pin to shield)
Resistance 0.055 Ω/m (conductor)
Estimated Break-In Time 250 Hours
Cable Diameter 5/8″ OD
Connector Type Purist RCA & Modified XLR
Material Treatment Triple (3x) Cryomag©