ELECAUDIO ER-107R RCA for IC PTFE Gold Plated 24K Black (unit) - reviews - There are 4 reviews.

Good product
Solid connector for fair price.

Not the best for its color
Accurate and solid construction, pleasant appearance when mounted, but the left channel should be identified with the white color.
The real dimensions of the footprint are 5.08 and 10.16 mm (0.2 and 0.4 inches)

Good quality RCA jacks
I had first purchased some similar jacks from Ebay, but they were fragile and were a problem to work with. I replaced them with these, which are of much higher quality. Highly recommended.

je l'utilise pour refaire le cable interne de mes blocs mono marantz
J'ai noté un gain notable dans les aiguës et le médium mais une grosse perte de basse sur des MATIS DAVIS (peut être du à ma configuration qui y est associé = câble électrique associé Elecaudio + bornier haut parleur Rhodium + fiche IEC plaqué Or
Elecaudio)

Par contre sur des OFFRANDES de JMReynaud c'est impeccable