---
product_id: 318577445
title: "Infinity Alpha 4020 175 WATTS 4\" 2-Way COAXIAL Speaker"
brand: "infinity"
price: "₱7446"
currency: PHP
in_stock: true
reviews_count: 5
category: "Infinity"
url: https://www.desertcart.ph/products/318577445-infinity-alpha-4020-175-watts-4-2-way-coaxial-speaker
store_origin: PH
region: Philippines
---

# 175W Peak Power 75Hz-20kHz Frequency Range 88dB Sensitivity Infinity Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker

**Brand:** infinity
**Price:** ₱7446
**Availability:** ✅ In Stock

## Summary

> 🔊 Elevate your sound game — don’t just listen, experience every beat!

## Quick Answers

- **What is this?** Infinity Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker by infinity
- **How much does it cost?** ₱7446 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/318577445-infinity-alpha-4020-175-watts-4-2-way-coaxial-speaker)

## Best For

- infinity enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Mighty:** 4-inch coaxial design fits sleekly into your setup without sacrificing performance.
- • **Wide Frequency Range:** From deep bass to sparkling highs, enjoy a full 75Hz-20kHz sound spectrum.
- • **Seamless Compatibility:** Plug and play with smartphones, tablets, TVs, and more for effortless audio upgrades.
- • **Precision Audio Clarity:** 88dB sensitivity ensures your playlists hit every note with vibrant detail.
- • **Power that Packs a Punch:** 175W peak power delivers crisp, room-filling sound that commands attention.

## Overview

The Infinity Alpha 4020 is a 4-inch 2-way coaxial speaker engineered for powerful, clear audio with 175W peak power and 88dB sensitivity. Covering a broad frequency range of 75Hz to 20kHz, it delivers rich bass and crisp highs. Designed for versatile use with smartphones, tablets, and vehicle audio systems, this compact speaker offers professional-grade sound in a sleek, easy-to-install package.

## Description

INFINITY Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker

Review: bit tiny
Review: Good speakers great sound

## Features

- Power Handling: 25W RMS
- Peak Power: 175W
- Ohms: 4 Ohms
- Sensitivity (@2.83V): 88dB
- Frequency Response: 75Hz-20kHz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07TRT1SF1 |
| Age Range Description | Adult |
| Antenna Location | For Music Players, For Computers, For Televisions, For Smartphones or Tablets |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Audio output mode | Stereo |
| Brand | Infinity |
| Built-In Media | 1 x Speaker |
| Color | black |
| Compatible Devices | Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop |
| Connectivity Technology | Coaxial |
| Connectivity technology | Coaxial |
| Control Method | Touch |
| Customer Package Type | standard packaging |
| Customer Reviews | 3.8 out of 5 stars 33 Reviews |
| Frequency Response | 20000 Hz |
| Frequency response | 20000 Hz |
| Impedance | 4 Ohms |
| Is Waterproof | FALSE |
| Item Weight | 1.1 Pounds |
| Manufacturer | HARMAN INTERNATIONAL |
| Model Name | Alpha 4020 |
| Model Number | ALPHA 4020 |
| Mounting Type | Coaxial |
| Mounting type | Coaxial |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Signal-to-Noise Ratio | 88 dB |
| Speaker Maximum Output Power | 175 Watts |
| Speaker Size | 4 Inches |
| Speaker Type | Coaxial |
| Speaker maximum output power | 175 Watts |
| Specific Uses For Product | vehicle audio, general-purpose audio |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4 Inches |
| Tweeter Diameter | 1 Inches |
| Water Resistance Level | Not Water Resistant |
| Woofer Diameter | 4 Inches |

## Images

![Infinity Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker - Image 1](https://m.media-amazon.com/images/I/61gZmk9EWkL.jpg)
![Infinity Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker - Image 2](https://m.media-amazon.com/images/I/61TPhK27YcL.jpg)
![Infinity Alpha 4020 175 WATTS 4" 2-Way COAXIAL Speaker - Image 3](https://m.media-amazon.com/images/I/719MsCKLYKL.jpg)

## Customer Reviews

### ⭐⭐⭐ bit tiny
*by C***R on 3 March 2025*



### ⭐⭐⭐⭐⭐ Good speakers great sound
*by J***. on 5 November 2021*



### ⭐⭐⭐⭐⭐ Exclend
*by J***K on 8 July 2020*

Supere

---

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**Shop now:** [https://www.desertcart.ph/products/318577445-infinity-alpha-4020-175-watts-4-2-way-coaxial-speaker](https://www.desertcart.ph/products/318577445-infinity-alpha-4020-175-watts-4-2-way-coaxial-speaker)

---

*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-10*