Cardas · Bi-Wire Jumpers

Cardas CJP Jumper Plates

From $50

Cardas · Bi-Wire Jumpers

Solid copper plates stamped to bridge binding posts on 38 mm centres: the simplest replacement for the metal strips supplied with bi-wirable speakers.

Price is for a set of four plates, enough for one pair of speakers. Choose bare copper or plated in the selector.

Set of 4
enough for one pair of speakers
38.1 mm
post spacing (1.5 in)
Solid
Grade 1 copper
6.3 / 9 mm
dual spade size
Options and pricing

Authorized Cardas dealer · Delivery and installation by Pearl Audio · Trade-ins welcome

The story

CJP Jumper Plates are stamped from solid Grade 1, 99.9999% pure oxygen-free Cardas copper to fit binding posts on 1.5 in (38.1 mm) centres. The dual spade profile fits standard 6.3 mm or larger 9 mm posts, and the plates can be carefully bent to suit a particular terminal layout.

They come in two finishes: CJP R, plated in silver with a flash of rhodium like Cardas connectors, and CJP C in bare copper. Sold in sets of four, enough for one pair of speakers.

Measure centre to centre between the bass and treble posts on one speaker; the plates are made for 1.5 in (38.1 mm) spacing. Choose the plated version where the plates will be handled or exposed to humid air; bare copper will tarnish over time. For posts on other spacings, Cardas 9.5 AWG or 11.5 AWG cable jumpers are the alternative.

Key technologies

  • Ultra Pure Cardas Copper. Grade 1, 99.9999% pure oxygen-free copper, drawn and annealed slowly through silver dies, then given a single poly-nylon coat to prevent oxidation and crosstalk between strands.
  • Silver/rhodium plating. The R version carries the same silver plate with a flash of rhodium as Cardas's machined connectors; the C version is bare copper.
  • Dual spade profile. Each plate is stamped to fit standard 6.3 mm or larger 9 mm binding posts on 1.5 in (38.1 mm) centres and can be bent carefully to fit.
  • Made in Bandon, Oregon. Made at the Cardas factory on the southern Oregon coast, alongside the cables and connectors.
Specifications
Type Bi-wire jumper plates
Material Stamped solid Grade 1, 99.9999% OFC
Finish Silver/rhodium plate (CJP R) or bare copper (CJP C)
Fit 1.5 in (38.1 mm) post centres; 6.3 mm or 9 mm posts
Sold as Set of four
Warranty Not published by Cardas
Made in Bandon, Oregon, USA

Cardas CJP Jumper Plates product page and specifications Specifications from cardas.com and the Cardas 2025 Dealer Catalog (Spring 2025 Retail). Lengths are metric; Cardas builds any length to order.

Where it sits in the range

Cardas bi-wire jumpers, for running a single speaker cable into speakers with separate bass and treble terminals.

Plan your Cardas system with Pearl Audio

Pearl Audio is an authorized Cardas dealer. We can measure your runs, recommend terminations for your amplifier and speakers, special-order lengths and connectors that are not in the selector, and let you hear Cardas cabling in our Portland showroom by appointment. Call (503) 222-2599 or email sales@pearlaudio.com.

The Pearl Audio experience

How we work with you

A system at this level should be heard, thoughtfully matched, and properly set up. From the first audition to long-term ownership, you work with the same people, in person.

  1. 01

    Listen first

    Hear the CJP Jumper Plates by appointment in one of our two purpose-designed demonstration rooms, with your own music and time to compare without pressure.

  2. 02

    Delivery and installation

    We deliver and install throughout the Portland area, taking care of placement, connections, ventilation and system configuration ourselves.

  3. 03

    Support for as long as you own it

    We support everything we sell for as long as you own it, whether the answer comes by phone, in your home, or through factory service.

  4. 04

    A path for what comes next

    Trade-in assistance and qualifying 100% Trade-Up options give you flexibility when your listening priorities or your system change.

Search