Mundorf Binding Post Connector TPCU670E Pure Copper EVO

Mundorf TPCU670E MConnect TPCU Series Pure Copper Binding Post

Made in Germany from solid Oxygen-Free Copper (OFC), the Mundorf TPCU670E is a precision-engineered binding post designed to meet the highest demands in mechanical accuracy and acoustic performance. By eliminating metal plating layers, this pure unplated copper terminal post delivers exceptional signal purity, low transfer resistance, and natural tonal warmth.

The TPCU670 features a solid, lean profile suited for high-end loudspeakers and amplifier chassis. Its robust terminal design provides a high contact surface area for 6 mm spade lugs and standard 4 mm banana plugs.

Key Features & Applications:

• Solid OFC Copper Substrate: Precision-machined from solid 99.99% pure oxygen-free copper for high current transfer and minimal resistance.
• Unplated Pure Copper Finish: Omits surface plating to maintain an uncoloured, direct signal path for reference listening.
• Rotation & Polarity Protection: Custom insulation mounting hardware prevents the post from spinning and identifies channel polarity.
• Included Mounting Hardware: Comes complete with two securing nuts, one flat washer, and one spring washer for secure installation.

Specifications:

• Model Part Number: TPCU670E
• Series: MConnect TPCU Series
• Conductor Material: Solid Pure Oxygen-Free Copper (OFC)
• Finish / Plating: Unplated Raw Copper (E-style)
• External Connections: 6 mm cable lugs (spades) and 1x 4 mm banana plug
• Internal Connections: 6 mm cable lugs (spades) or direct solder terminal
• Quantity: Supplied as two pairs (two each red and two each black)
• Maintenance Note: Pure unplated copper should be cleaned periodically with copper polish or a mild vinegar-and-water solution to prevent surface oxidation.

Installation & Mounting Tips:

• Mounting Plate Selection: Mundorf strongly recommends using non-metallic mounting plates (such as acrylic, wood, or fiberglass). Metallic plates can induce eddy currents through counter-rotating magnetic fields, absorbing signal energy and degrading high-frequency detail.
• Keyed Hole Preparation: The mounting hole requires a small notch for the insulation washer's tab to engage, locking the post against rotation during cable tightening.
• Internal Termination: Solder your internal wiring to the solder tab or terminate with 6 mm spade lugs. Secure the assembly using the supplied washer, spring washer, and dual nuts.