---
product_id: 618292205
title: "Infinity REF307F 3.5 Inch 2 Way Car Speakers - Pair"
brand: "infinity"
price: "NT$7586"
currency: TWD
in_stock: true
category: "Infinity"
url: https://www.desertcart.tw/products/618292205-infinity-ref307f-3-5-inch-2-way-car-speakers-pair
store_origin: TW
region: Taiwan
---

# Plus One™ oversized woofer for deeper bass 50W max output power Adjustable tweeter output control Infinity REF307F 3.5 Inch 2 Way Car Speakers - Pair

**Brand:** infinity
**Price:** NT$7586
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your drive with sound that speaks volumes — don’t just listen, belong.

## Quick Answers

- **What is this?** Infinity REF307F 3.5 Inch 2 Way Car Speakers - Pair by infinity
- **How much does it cost?** NT$7586 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/618292205-infinity-ref307f-3-5-inch-2-way-car-speakers-pair)

## 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

- • **Audiophile-grade clarity:** Experience smooth, non-fatiguing highs with edge-driven textile tweeters designed for crystal-clear sound at any volume.
- • **Tailored sound, your way:** Adjustable tweeter output lets you fine-tune high frequencies to perfectly match your car’s acoustics or personal taste.
- • **Seamless fit for any ride:** Compact, flush-mount design fits effortlessly into most factory speaker locations—upgrade without the hassle.
- • **Bass that commands attention:** Plus One™ patented oversized woofers deliver more cone area, pumping out richer, deeper bass that transforms your drive.
- • **Trusted quality & reliability:** Backed by Infinity’s engineering excellence and a 1-year limited warranty, ensuring your sound investment lasts.

## Overview

The Infinity REF307F 3.5 Inch 2 Way Car Speakers pair audiophile-grade textile tweeters with patented Plus One™ oversized woofers to deliver clear highs and powerful bass. Featuring adjustable tweeter output control and a compact flush-mount design, these speakers fit most vehicles and provide customizable, high-fidelity sound. With 50 watts max power and a 1-year warranty, they’re the perfect upgrade for millennial professionals seeking premium in-car audio.

## Description

New Reference speakers are designed to deliver Infinity’s signature sound in more vehicles. They feature edge-driven textile tweeters for smooth, clear highs and the larger models offer an adjustable tweeter output level control for high-frequency optimization based on installation location or the listener's preference. Oversized Plus One™ woofers offer more surface area for higher bass output and enhanced midrange performance. Plus our newly engineered baskets are optimized to fit most factory speaker locations. Available in a range of standard sizes - 3-1/2", 4", 5-1/4", 6-1/2", 6" x 8" and 4" x 6" coaxial, 6" x 9" 3-way, and 5-1/4", 6-1/2", and 6" x 9" component - they’re the perfect upgrade from factory speakers.

## Features

- The audiophile-grade tweeters used in Infinity's new Reference speakers deliver smooth, non-fatiguing sound even at high output levels.
- The larger Reference multielement and component systems offer a tweeter output level control to optimize system linearity to suit installation location or the listener's preference.
- Harman’s patented (US patent #7,548,631) Plus One cones provide more overall speaker-cone area than other cones in its class - the result is higher sensitivity, increased low-frequency output and accurate music reproduction.
- Reference speakers are available in a range of standard sizes, and feature a compact design that allows them to fit just about any vehicle on the road today.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CV4HFR9Z |
| Additional Features | Lightweight |
| Antenna Location | For Surround Sound Systems |
| Audio Driver Size | 8.9 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #19,368 in Electronics ( See Top 100 in Electronics ) #126 in Car Coaxial Speakers |
| Brand | Infinity |
| Built-In Media | REF307F |
| Color | black |
| Compatible Devices | Desktop, Laptop, MP3 Player, Projector, Smartphone, Tablet, Television |
| Compatible with Vehicle Type | & SUVs, Select Cars, Truck |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Customer Package Type | FFP |
| Customer Reviews | 4.7 4.7 out of 5 stars (94) |
| Enclosure Material | Plastic |
| Frequency Response | 21 KHz |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 8.46"D x 2.95"W x 5.35"H |
| Item Weight | 1.8 Pounds |
| MP3 player | No |
| Manufacturer | Infinity |
| Model Name | REF307F |
| Model Number | INFSPKRF307FUS |
| Mounting Type | Flush Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 50 Watts |
| Speaker Size | 3.5 Inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | Car audio systems and home surround sound systems |
| Subwoofer Connectivity Technology | Wired |
| Tweeter Diameter | 3.5 Inches |
| UPC | 050667379957 |
| Unit Count | 1.0 Count |
| Warranty Description | 1-Year Manufacturer Warranty |
| Warranty Type | Limited |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 8.89 Centimeters |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Infinity
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 21 KHz
- **Speaker Maximum Output Power:** 50 Watts

## Images

![Infinity REF307F 3.5 Inch 2 Way Car Speakers - Pair - Image 1](https://m.media-amazon.com/images/I/61lfOOqLRVL.jpg)

## Frequently Bought Together

- Infinity REF307F Reference Series 3.5" Extreme-Performance Automotive coaxial Speakers
- RED WOLF Front Dash Tweeters Speaker Wiring Harness Adapter Connector Plug Replacement for Dodge Ram Jeep Chrysler 2005-2022 Aftermarket Dash Tweeters Audio Cable Plug 2PC
- Metra 72-6514 Speaker Harness for Select Chrysler/Dodge Vehicles

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**Shop now:** [https://www.desertcart.tw/products/618292205-infinity-ref307f-3-5-inch-2-way-car-speakers-pair](https://www.desertcart.tw/products/618292205-infinity-ref307f-3-5-inch-2-way-car-speakers-pair)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-07-29*