Neotech NC-01675RH Rhodium-Plated Pure Copper Banana Plugs (4pce/set)

Neotech NC-01675RH Rhodium-Plated Cryo-Treated OFC Copper Banana Plugs Premium speaker cable termination from Neotech. The NC-01675RH combines cryogenically treated OFC copper contacts, durable rhodium plating and an expanding four-lamella contact design to provide a secure, high-quality connection between your speaker cable and binding posts. ✔ Cryogenically treated OFC copper contacts ✔ Premium rhodium-plated contact surface ✔ Four-lamella expanding banana contact ✔ Increased contact area inside the binding post ✔ Accepts substantial cables up to Ø8mm ✔ Secure two-screw cable termination ✔ Supplied as a set of four ✔ Genuine Neotech product from the official Australian importer & distributor The Neotech NC-01675RH is a premium banana plug designed for high-performance speaker cables where conductor quality, mechanical contact and long-term reliability all matter. At its core is a cryogenically treated OFC copper contact rather than the conventional brass commonly found beneath the plating of many speaker connectors. The contact is finished in rhodium, providing a hard-wearing surface with excellent resistance to oxidation and corrosion. Neotech goes further with an intelligent four-lamella expanding contact. Once inserted into a compatible binding post, the four sections expand outward to create firm mechanical pressure and maximise the available contact area. Combined with its substantial Ø8mm cable capacity, the NC-01675RH is particularly well suited to large-gauge and reference-level speaker cable construction. OFC Copper Where It Matters The conductive material beneath a connector's plating is an important part of its overall design. While brass is widely used because of its strength and relatively low manufacturing cost, its electrical conductivity is considerably lower than copper. Neotech instead constructs the NC-01675RH contact from OFC copper, maintaining a high-quality copper-based conductive path between the speaker cable and equipment terminal. The contacts also undergo cryogenic treatment as part of Neotech's manufacturing process, complementing the high-purity copper construction and premium positioning of the connector. Rhodium-Plated for Long-Term Durability The OFC copper contact is protected by a rhodium-plated surface. Rhodium is exceptionally resistant to corrosion, oxidation and surface wear, making it particularly well suited to connectors that may be inserted and removed repeatedly over many years. This provides the NC-01675RH with a durable contact interface while retaining OFC copper as the primary conductive material underneath. Expanding Four-Lamella Contact One of the most interesting features of the NC-01675RH is its four-lamella central contact. Rather than relying on a simple fixed banana pin, the contact expands after insertion into the binding post. The four individual sections apply outward pressure against the inside of the terminal, helping create a firm mechanical fit with a large contact area. This design helps maintain consistent physical contact between the banana plug and binding post while reducing the possibility of a loose-fitting connection. Built for Substantial Speaker Cables With support for cables up to Ø8mm, the NC-01675RH can accommodate substantially larger cable constructions than many conventional banana plugs. The cable is secured using a two-screw termination system, providing strong mechanical retention and straightforward installation. This makes the NC-01675RH an excellent partner for larger Neotech speaker cables and other premium high-gauge cable designs where smaller connectors may simply not provide sufficient cable capacity. Key Features OFC Copper Contacts – high-conductivity copper rather than conventional brass Cryogenic Treatment – applied to the contacts during manufacture Rhodium Plating – highly resistant to oxidation, corrosion and wear Four-Lamella Contact – expands inside the binding post for a secure connection Large Contact Area – designed to maximise physical contact with the terminal Ø8mm Cable Capacity – suitable for substantial audiophile speaker cables Two-Screw Termination – provides secure mechanical cable retention Technical Specifications Model Neotech NC-01675RH Product Type Banana Plug Contact Material OFC Copper Contact Plating Rhodium Treatment Cryogenic Contact Design 4-Lamella Expanding Contact Maximum Cable Diameter Ø8mm Cable Mounting Two-Screw Termination Dimensions 57mm × Ø15mm Colour Black Quantity Set of 4 Why Buy Neotech From Audiophile Shop Australia? Audiophile Shop Australia is the official Australian importer and distributor for Neotech, supplying genuine Neotech cables, connectors and accessories with local Australian stock and support. We also use Neotech products extensively through our A.L.A Audio custom cable workshop and can assist with cable selection, connector matching and professionally assembled custom speaker cables.