---
product_id: 621561757
title: "2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo"
brand: "salbsever"
price: "€ 21.36"
currency: EUR
in_stock: true
reviews_count: 5
category: "Salbsever"
url: https://www.desertcart.it/products/621561757-2-pcs-speaker-sub-box-terminals-cup-for-subwoofer-box
store_origin: IT
region: Italy
---

# Gold-plated contacts for superior signal 3-inch diameter for universal fit Spring-loaded terminals for secure connection 2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo

**Brand:** salbsever
**Price:** € 21.36
**Availability:** ✅ In Stock

## Summary

> 🎵 Plug into premium sound—upgrade your bass game now!

## Quick Answers

- **What is this?** 2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo by salbsever
- **How much does it cost?** € 21.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/621561757-2-pcs-speaker-sub-box-terminals-cup-for-subwoofer-box)

## Best For

- salbsever enthusiasts

## Why This Product

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

## Key Features

- • **Durable Build:** Robust plastic and metal construction designed to withstand years of high-performance use.
- • **Effortless Wiring:** Color-coded, quick-disconnect spring terminals make installation a breeze—no tech degree needed.
- • **Dual Binding Posts:** Supports 2-way speaker setups for versatile home or car audio customization.
- • **Universal 3-Inch Fit:** Perfectly sized 75mm diameter terminals to seamlessly upgrade any subwoofer box.
- • **Premium Signal Clarity:** Gold-plated contacts ensure crystal-clear audio transmission with minimal loss.

## Overview

This 2-piece speaker sub box terminal kit features 3-inch round, spring-loaded binding posts with gold-plated contacts, designed for easy, secure wiring in home or car subwoofer systems. Built from durable plastic and metal, these terminals offer reliable, high-quality audio connections with color-coded quick-disconnects for simplified installation.

## Description

Product name: 2pcs speaker box terminalColour: BlackMaterial: plastic + metalPacking list: 2pcs speaker terminal cup

Review: Works good smooth
Review: Good high quality

## Features

- Contents: Kit includes a pair of speaker terminal cups with dual binding posts, good for home and car audio enthusiasts looking to customize their sound systems.
- Quality Material: Constructed from robust plastic and metal, these subwoofer box terminal are designed for longevity.
- Size: Each speaker connectors terminal features a 75mm (approximately 3”) outer diameter and a 30mm (1.2 inches) thickness.
- User-friendly: The rear connectors come with quick-disconnect capabilities and color-coded indicators (red for positive, black for negative) for simplified wiring.
- Installation: The spring-loaded terminals provide a secure connection and the gold-plated contacts ensure optimum signal transmission.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CX59CCPJ |
| Item model number | 573288_1_Jz0hCJe9V |
| Manufacturer | salbsever |
| Product Dimensions | 18 x 10 x 3 cm; 82 g |

## Images

![2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo - Image 1](https://m.media-amazon.com/images/I/613bA6g76ZL.jpg)
![2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo - Image 2](https://m.media-amazon.com/images/I/61KfpKLkW8L.jpg)
![2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo - Image 3](https://m.media-amazon.com/images/I/716YRzzYbaL.jpg)
![2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo - Image 4](https://m.media-amazon.com/images/I/71QQojJo1iL.jpg)
![2 Pcs Speaker Sub Box Terminals Cup for Subwoofer Box Black 3 Inch Round 2-Way Spring Loaded Jacks Wire Connector Binding Post Cup Connector Subwoofer Plug for Speaker Sub Home Car Stereo - Image 5](https://m.media-amazon.com/images/I/71R0z6JW+6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***F on 21 October 2025*

Works good smooth

### ⭐⭐⭐⭐⭐ Review
*by T***. on 16 November 2025*

Good high quality

### ⭐⭐⭐⭐ Review
*by K***M on 11 February 2025*

These worked great for my son’s system. They send 2 of them. Easy to install and a great value for the money.

---

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---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-05*