The ETI Research BP-50C Binding Post stands out as a top-tier high-performance binding post designed for exceptional audio quality. Crafted from OCC Copper, the BP-50C has direct gold plating over pure copper, without a nickel
The ETI-Research BP-50C Binding Post is a high-performance speaker binding post engineered for exceptional signal conductivity and outstanding value. Manufactured from premium 1100 Series OCC (Ohno Continuous Cast) Copper, with a conductivity rating of 102% IACS, the BP-50C offers superior electrical conductivity compared with conventional brass binding posts, making it an excellent choice for high-quality audio connections.
To preserve signal integrity, the BP-50C features direct gold plating over pure copper, without a nickel underlayer. Unlike conventional gold-plated connectors that use nickel between the copper and gold, this design eliminates an additional, less-conductive metal from the signal path. The result is a carefully engineered connection designed to minimise unnecessary electrical resistance and maintain excellent signal transfer.
The innovative aluminium and polymer housing is designed to provide protection against electromagnetic and radio-frequency (EM/RF) interference. Its threaded polymer construction isolates the conductive copper post from surrounding metal components, while a high-density, non-conductive polymer securing nut further minimises unwanted conductive contact. Together, these features help maintain a clean, electrically isolated connection.
The ETI-Research BP-50C Binding Post supports both soldered and screw-secured cable connections, offering installation flexibility for amplifier chassis and speaker terminal plates. Combining OCC copper construction, nickel-free gold plating and intelligent electrical isolation, the BP-50C delivers premium binding post technology with exceptional value for discerning audio enthusiasts.