The ETI-Research BP-20C 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-20C 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-20C 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.
With a 20mm post length, the ETI-Research BP-20C is ideally suited to amplifier chassis mounting and speaker terminal plates. Supporting both soldered and screw-secured cable connections, it offers installation flexibility without compromising its precision-engineered construction. Combining OCC copper, nickel-free gold plating and intelligent isolation, the BP-20C delivers premium binding post technology at exceptional value.
