---
product_id: 64563563
title: "CSJ620 300 Watt Speaker"
brand: "jvc"
price: "¥34842"
currency: JPY
in_stock: true
reviews_count: 10
category: "Jvc"
url: https://www.desertcart.jp/products/64563563-csj620-300-watt-speaker
store_origin: JP
region: Japan
---

# 4 Ohms impedance for efficient power use 6.5-inch dynamic driver 300W peak power CSJ620 300 Watt Speaker

**Brand:** jvc
**Price:** ¥34842
**Availability:** ✅ In Stock

## Summary

> 🎶 Upgrade your ride’s soundtrack — don’t just drive, arrive in style!

## Quick Answers

- **What is this?** CSJ620 300 Watt Speaker by jvc
- **How much does it cost?** ¥34842 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/64563563-csj620-300-watt-speaker)

## Best For

- jvc enthusiasts

## Why This Product

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

## Key Features

- • **Flush Mount Design:** Seamlessly integrates into your car’s interior for a sleek look.
- • **Powerful 300W Output:** Feel every beat with robust sound that fills your car.
- • **Optimized 4 Ohm Impedance:** Efficient power handling for consistent performance.
- • **Precision 6.5" Dynamic Drivers:** Crystal-clear audio clarity for your daily drive.
- • **Poly-Ether Imide Tweeter & Mica Cone:** Advanced materials deliver crisp highs and rich mids.

## Overview

The JVC CSJ620 is a 300-watt, 6.5-inch 2-way coaxial car speaker designed for clear, dynamic sound with efficient 4 Ohm impedance. Featuring a poly-ether imide tweeter and mica-injected polypropylene cone, it delivers crisp highs and balanced mids. Its flush mount design ensures a sleek fit in your vehicle, making it a top choice for audiophiles seeking quality and style on the road.

## Description

JVC CSJ620 300W 6.5" CS Series 2-Way Coaxial Car Speakers, 2 Set

Review: Good one - Good but top grill not in box
Review: Clear sound,bass average - Sound output is very clear , however bass pump is not that impressive.

## Features

- Designed as per the latest market trends
- Scores high in terms of functionality
- This product will be an excellent pick for you

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00OO1ENP4 |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #708,733 in Electronics ( See Top 100 in Electronics ) #237 in Car Coaxial Speakers |
| Colour | black |
| Compatible Devices | Car |
| Control Method | Touch |
| Customer Reviews | 4.4 4.4 out of 5 stars (9,387) |
| Date First Available | 16 July 2014 |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 00809198920240, 04975769413810 |
| Impedance | 4 Ohms |
| Included Components | 2 speakers, Screws and Warranty Card |
| Input Voltage | 12 Volts (DC) |
| Is Waterproof | false |
| Item Weight | 998 g |
| Item model number | CS-J620 |
| Manufacturer | JVC |
| Material | Mica Injected Polypropylene, Poly-Ether Imide |
| Maximum Range | 30 metres |
| Model Name | CSJ620X |
| Mounting Type | Flush Mount |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Other display features | Wireless |
| Power Source | Battery Powered |
| Product Dimensions | 19.3D x 34W x 9.1H Centimeters |
| Recommended Uses For Product | Car |
| Shape | Rectangular Prism |
| Speaker Size | 6.5 Inches |
| Speaker Type | Woofer |
| Special Feature | Poly-Ether Imide Tweeter, Rubber surround, mica cone |
| Special features | Poly-Ether Imide Tweeter, Rubber surround, mica cone |
| Specific Uses For Product | Car |
| Style | Single |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 5 Inches |
| Surround Sound Channel Configuration | 5 1 |
| Tweeter Diameter | 1 Inches |
| UPC | 613815616498 809198920240 796594442363 046838068355 823019870491 |
| Water Resistance Level | Waterproof |
| Wireless Communication Technology | Bluetooth |
| Woofer Diameter | 16.51 Centimetres |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** JVC
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 22000 Hz
- **Speaker Maximum Output Power:** 300 Watts

## Images

![CSJ620 300 Watt Speaker - Image 1](https://m.media-amazon.com/images/I/51FtKW0RGML.jpg)

## Questions & Answers

**Q: is it 30 watts rms each ? or 15 rms each to make it 30 rms?**
A: Pretty sure it's 30 each. Still not very high...These would be best suited to to run off a factory unit, or lower powered aftermarket head unit or small amp....It's not as much about the max watts so much as the rms, match that up to your amp whether it's the HU or external amp for best efficiency...

**Q: What size amp should i use if i buy 4 of these?**
A: U can use a 400 what's. With low frequency

**Q: do you need a wiring harness or any connector?**
A: Mine were direct replacements, the head unit i had bought 3 weeks earlier came with a new conversion harness, I did have to change the connectors on the speaker wires.

**Q: do these have to be broken in? My stock speaker is louder than them**
A: I doubt they need much breaking in. I wouldn't play them too hard maybe at first but these are a budget speaker at best, don't think you're going to get real great performance out of them. Your stock speakers probably are louder at the same volume on the radio due to better mid range sensitivity ...most regular oem systems have pretty ho-hum speakers, but do produce decent volume for mid-range sounds.

## Customer Reviews

### ⭐⭐⭐⭐ Good one
*by U***E on 28 March 2021*

Good but top grill not in box

### ⭐⭐⭐ Clear sound,bass average
*by R***. on 27 August 2021*

Sound output is very clear , however bass pump is not that impressive.

### ⭐⭐ Not good
*by P***R on 5 April 2021*

Waste of money

## Frequently Bought Together

- JVC CS-J620 300W 6.5" CS Series 2-Way Coaxial Car Speakers, Set of 2, 6.5" Mica Cone Woofer & 1" PEI Tweeter, Hybrid Surround, Easy Installation
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- BOSS Audio Systems CH6530 Chaos Series 6.5 Inch Car Door Speakers - 300 Watts (Pair), 3 Way, Full Range, Tweeters, Coaxial, Sold in Pairs

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-10*