---
product_id: 451583841
title: "Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack"
brand: "wjstn"
price: "3326 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Wjstn"
url: https://www.desertcart.is/products/451583841-flex-pin-banana-plugs-to-4mm-female-banana-jack-speaker
store_origin: IS
region: Iceland
---

# Flexible pin design for versatile connections 24K Gold-plated copper for max conductivity Compatible with spring-loaded terminals & multiple plug types Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack

**Brand:** wjstn
**Price:** 3326 kr
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound setup with flawless connections — don’t let your audio fall behind!

## Quick Answers

- **What is this?** Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack by wjstn
- **How much does it cost?** 3326 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/451583841-flex-pin-banana-plugs-to-4mm-female-banana-jack-speaker)

## Best For

- wjstn enthusiasts

## Why This Product

- Trusted wjstn brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Color-Coded Sleeves:** Red and black markers eliminate wiring confusion, guaranteeing perfect polarity every time.
- • **Flexible Pin Design:** Effortlessly adapts to spring-loaded terminals, making setup quick and hassle-free.
- • **Durable & Long-Lasting:** Built to withstand frequent use with robust materials, ideal for home theaters and professional sound systems.
- • **Universal Compatibility:** Seamlessly connects bare wires, banana plugs, and shovel plugs to 4mm female banana jacks.
- • **Premium 24K Gold-Plated Copper:** Ensures superior signal clarity and corrosion resistance for pristine audio quality.

## Overview

The WJSTN Flex Pin Banana Plugs to 4mm Female Banana Jack Adapter 4-Pack offers high-quality 24K gold-plated copper construction and flexible pins designed for spring-loaded terminals. Compatible with various plug types and color-coded for easy polarity identification, these adapters provide reliable, long-lasting connections for amplifiers, speakers, and home theater systems.

## Description

These Flex Pin Banana Plugs to 4mm Female Banana Jack adapters are perfect for connecting speakers, amplifiers, and other audio devices. With a 4mm female banana jack, they are compatible with a wide range of devices, including speakers, amplifiers, karaoke machines, and more. The flexible pins make it easy to connect and disconnect wires, and the sturdy construction ensures long-lasting performance. Whether you're setting up a home theater system or just need a reliable audio adapter, these Flex Pin Banana Plugs to 4mm Female Banana Jack adapters are a great choice.

Review: Works like a charm for older amps - I have a vintage Denon POA-2200 amp which doesn’t have banana plug connectors. I saw there are DIY kits but cost several hundred dollars after professional installation. Instead, these flex pin banana plugs are the best and most cost effective. Easy to install and I was able to connect 14 AWG speaker cables without problems. Great product!
Review: Modern Solution - I bought these as a last-ditch effort before taking my vintage Diatone DS-77Z speakers to a repair shop, and I’m honestly shocked at how well they worked. My angled banana plugs wouldn’t make proper contact in the older JIS-style binding posts on the Diatones, even though they worked fine with my KEF LS50s. I assumed the speakers were failing. These flex-pin adapters, however, made full contact the moment I tightened the terminals and sound came alive instantly. Bass is deep and clean, mids are warm, and everything plays perfectly now. If you have older Japanese speakers that seem “dead” or inconsistent with banana plugs, try these before assuming anything is broken. They saved me time, money, and two great speakers. Highly recommended.

## Features

- Flexible pin plugs to 4mm female banana jack.
- This adapter is made of high-quality all copper 24K Gold Plated，Durable and flexible, with a long service life.
- This adapter has multifunctional output/input and can be installed and used with different plugs such as bare wire, banana plug, shovel plug, etc.
- This adapter is most suitable for spring terminal connectors, speaker cable connectors, wall panels, home theaters, audio/video receivers, amplifiers, and sound systems
- Designed with black/red plastic sleeves, it is easier to distinguish between positive and negative electrodes. Red represents the positive pole, and black represents the negative pole.
- You will receive: 4pcs (2 red and 2 black)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2KP39FN |
| Best Sellers Rank | #442 in Audio & Video Connectors & Adapters |
| Customer Reviews | 4.6 4.6 out of 5 stars (193) |
| Date First Available | May 27, 2022 |
| Item Weight | 3.2 ounces |
| Item model number | Flex -type-3inch |
| Manufacturer | WJSTN |
| Package Dimensions | 6.02 x 1.54 x 0.63 inches |

## Product Details

- **Brand:** WJSTN
- **Color:** Red/Black
- **Compatible Devices:** Speaker
- **Item Package Quantity:** 1
- **Number of Ports:** 8

## Images

![Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack - Image 1](https://m.media-amazon.com/images/I/61ObI0ExoDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works like a charm for older amps
*by G***A on December 6, 2025*

I have a vintage Denon POA-2200 amp which doesn’t have banana plug connectors. I saw there are DIY kits but cost several hundred dollars after professional installation. Instead, these flex pin banana plugs are the best and most cost effective. Easy to install and I was able to connect 14 AWG speaker cables without problems. Great product!

### ⭐⭐⭐⭐⭐ Modern Solution
*by J***N on November 8, 2025*

I bought these as a last-ditch effort before taking my vintage Diatone DS-77Z speakers to a repair shop, and I’m honestly shocked at how well they worked. My angled banana plugs wouldn’t make proper contact in the older JIS-style binding posts on the Diatones, even though they worked fine with my KEF LS50s. I assumed the speakers were failing. These flex-pin adapters, however, made full contact the moment I tightened the terminals and sound came alive instantly. Bass is deep and clean, mids are warm, and everything plays perfectly now. If you have older Japanese speakers that seem “dead” or inconsistent with banana plugs, try these before assuming anything is broken. They saved me time, money, and two great speakers. Highly recommended.

### ⭐⭐⭐⭐⭐ Works Great!
*by J***O on September 6, 2025*

I previously purchased a similar product (https://www.amazon.com/dp/B0B218673M?ref=ppx_yo2ov_dt_b_fed_asin_title) and was underwhelmed. See my review of it for further details. The additional length of the pigtails (almost too long, for my taste) allowed plenty of room for the connections with no danger of shorting out and made connections easy. Unlike the previous adapters, the pigtails are insulated (color coded, too), as are the 'shoulders' of the binding posts where spade lugs (the application I used, in order to facilitate bi-wiring my speakers) are inserted. Not only does this alleviate the possibility of the connections shorting, the plastic insulation on the shoulder provided additional purchase area allowing the connections using spade lugs to be nice and tight. I highly recommend these to anyone requiring an adapter of this type to make connections to their components. The quality of their construction is very good, especially considering their modest price.

## Frequently Bought Together

- WJSTN Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack
- CNCESS CESS-220 Pin Banana Plug to 4mm Female Banana Jack/Speaker Wire, 4 Pack (Braided-Type to 4mm)
- Suanqi Flex Pin Banana Plugs to 4mm Female Banana Jack Speaker Audio Adapter for Spring Loaded Terminals Amplifier Speaker Sound Systems 4Pack (Flex -Type to 4mm Female).

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-23*