We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Pair of dual 4mm banana plug terminals red black gold hexagon binding posts 43 x 15 x 35mm

Ruth's sister

Ruth's sister Dual 4mm Banana Plug Terminal Red Black DX25 internal power cable

SKU CH-X4KK-WN795

Dual 4 mm banana-plug terminals with gold-plated copper contacts, screw-locking and colour-coded insulation for amplifier connections

  • Dual 4 mm banana sockets accept standard plugs
  • Gold-plated pure-copper contacts resist corrosion and minimise resistance
  • Screw-lock terminals secure wires without soldering
  • Red and black colour coding simplifies polarity identification
  • Compact 43 × 15 × 35 mm body fits tight chassis spaces

Dual 4mm banana terminals for amplifier builds

The Ruth's sister DX25 provides a pair of gold-plated binding posts with red and black insulation for quick polarity identification. Each post accepts a 4 mm banana plug on one side and a 5 mm male-thread connector on the other, secured by screw locking without soldering. The pure copper, non-magnetic construction aims to keep signal paths clean for audio enthusiasts assembling or repairing amplifier connections.

Compact hex body with screw-lock convenience

Measuring 43 x 15 x 35 mm, the double-hexagon housing fits tight chassis spaces while offering a firm grip for tightening. Colour-coded jackets simplify wiring checks during installation or maintenance. The screw terminals eliminate the need for a soldering iron, letting builders make secure, reversible connections on the bench or in the field.

Single terminal pair ships ready to wire

The package includes one dual female banana plug terminal, delivering both positive and negative posts in a single unit. No additional adapters, cables or software are supplied, so installers simply match the red and black posts to their amplifier outputs and tighten the set screws. The minimal bundle keeps cost and clutter low for straightforward stereo hook-ups.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 7,839 comparable items (median $14.99).

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Specifications

No published specifications for this item yet.

Questions about this item

What does the 4 mm banana socket accept and what is the male thread size?

The socket takes a standard 4 mm banana plug while the opposite end has a 5 mm male thread for panel mounting.

What are the exact outside dimensions and the hole spacing needed to mount it?

The body measures 43 x 15 x 35 mm so the panel cut-out must clear a 5 mm thread and allow 15 mm width for the hexagon flats.

How do you secure a wire without soldering and which step is often missed?

Strip the wire, insert it into the rear of the terminal, then tighten the gold-plated set screw; the step people skip is fully tightening that screw so the copper conductor cannot pull out.

More in Internal PSU & Riser Cables

Similar items