---
product_id: 607398786
title: "KICKER 51KSC6504 KS-Series 6.5\" Coaxial Speakers with .75\" tweeters, 4-Ohm, Pair"
brand: "kicker"
price: "$368.62"
currency: USD
in_stock: true
reviews_count: 5
category: "Kicker"
url: https://www.desertcart.us/products/607398786-kicker-51ksc6504-ks-series-6-5-coaxial-speakers-with-75
store_origin: US
region: United States of America
---

# 43Hz-21kHz frequency range 100W RMS power handling 1.8in shallow mount depth KICKER 51KSC6504 KS-Series 6.5" Coaxial Speakers with .75" tweeters, 4-Ohm, Pair

**Brand:** kicker
**Price:** $368.62
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your drive with sound that commands attention!

## Quick Answers

- **What is this?** KICKER 51KSC6504 KS-Series 6.5" Coaxial Speakers with .75" tweeters, 4-Ohm, Pair by kicker
- **How much does it cost?** $368.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/607398786-kicker-51ksc6504-ks-series-6-5-coaxial-speakers-with-75)

## Best For

- kicker enthusiasts

## Why This Product

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

## Key Features

- • **Ready to Upgrade Your Ride:** Includes grilles and supports 15-100W amps for seamless integration and powerful performance.
- • **Universal Fit, Zero Mod Hassle:** Ultra-thin design with minimal tweeter protrusion fits almost every vehicle perfectly.
- • **Precision Polypropylene Woofers:** Internally dampened cones with rubber surrounds deliver punchy, distortion-free sound.
- • **Silk-Dome Tweeters for Crystal Highs:** Neodymium magnet tweeters produce natural, silky treble that pleases audiophiles.
- • **Concert-Level Volume, Refined Clarity:** Play loud without losing smooth, detailed highs and rich midbass.

## Overview

The KICKER 51KSC6504 KS-Series 6.5" Coaxial Speakers combine high power handling (up to 100W RMS) with a wide frequency response (43Hz-21kHz) to deliver concert-quality audio in your vehicle. Featuring polypropylene woofers with rubber surrounds and silk-dome tweeters with neodymium magnets, these speakers produce clear highs and deep midbass. Their shallow 1.8-inch mounting depth and minimal tweeter protrusion ensure a hassle-free, universal fit behind factory grilles, making them an ideal upgrade for discerning drivers seeking premium sound without modifications.

## Description

KICKER The KS Series speakers let you play at concert-like volume, but retain the smoothness and fineness to delight even the most selective ear. The high-performance woofers use interior dampened polypropylene cones and durable rubber surrounds for excellent midrange detail and striking bass. All KS Series woofers feature an ultra-thin mounting depth and fit easily into most factory speaker locations.

Review: Best set of speakers to fit into and replace oem Subaru liberty GT my10 dash mid range speakers.
Review: Took me awhile to find out who sold this size speaker. Kinda an odd size nowadays, but I wanted the best quality. And these are one of the best speaker brands in today’s market. You won’t be disappointed at all. Very easy to install, professional quality and excellent sound. Definitely worth the money.

## Features

- KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear.
- The high-performance woofers utilize internally dampened polypropylene cones and tough rubber surrounds for outstanding midrange detail and pounding bass!
- Completely redesigned with new cones, voice coils and crossovers, KS-Series Coaxial Speakers are a serious upgrade from your factory sound.
- Featuring zero (or minimal) tweeter protrusion, you get a perfect fit in almost every vehicle on the road today, without modifications.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRLGQBCN |
| Additional Features | Hi Res Audio |
| Age Range Description | All Ages |
| Antenna Location | Automotive |
| Audio Driver Size | 6.5 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #16,288 in Electronics ( See Top 100 in Electronics ) #43 in Coaxial Car Speakers |
| Brand | KICKER |
| Built-In Media | 51KSC6504 |
| Color | white |
| Compatible Devices | Car Audio Systems |
| Compatible with Vehicle Type | Car |
| Connectivity Protocol | 3.5mm audio jack |
| Connectivity Technology | 3.5mm audio jack |
| Control Method | App |
| Controller Type | Button |
| Customer Reviews | 4.6 4.6 out of 5 stars (550) |
| Enclosure Material | Polypropylene, Rubber, Silk |
| Frequency Response | 21000 Hz |
| Impedance | 4 Ohms |
| Is Waterproof | FALSE |
| Item Dimensions D x W x H | 4.8D x 7.8W x 7.8H centimeters |
| Item Weight | 5.7 Pounds |
| MP3 player | No |
| Manufacturer | KICKER |
| Model Name | 51KSC6504 |
| Model Number | 51KSC6504 |
| Mounting Type | Flush Mount |
| Number Of Circuits | 2 |
| Number of Audio Channels | 2.0 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Speaker Maximum Output Power | 200 Watts |
| Speaker Size | 6.5 Inches |
| Speaker Type | Coaxial |
| Specific Uses For Product | Car audio systems |
| Subwoofer Connectivity Technology | Wired |
| Tweeter Diameter | 0.75 Inches |
| UPC | 713034058410 |
| Unit Count | 2.0 Count |
| Warranty Type | Limited |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | No Wireless Communication Technology |
| Woofer Diameter | 6.5 Inches |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** KICKER
- **Connectivity technology:** 3.5mm audio jack
- **Frequency response:** 21000 Hz
- **Speaker maximum output power:** 200 Watts

## Images

![KICKER 51KSC6504 KS-Series 6.5" Coaxial Speakers with .75" tweeters, 4-Ohm, Pair - Image 1](https://m.media-amazon.com/images/I/81lwbwgmAnL.jpg)

## Available Options

This product comes in different **Model** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***M on 4 February 2025*

Best set of speakers to fit into and replace oem Subaru liberty GT my10 dash mid range speakers.

### ⭐⭐⭐⭐⭐ Review
*by O***0 on 25 April 2026*

Took me awhile to find out who sold this size speaker. Kinda an odd size nowadays, but I wanted the best quality. And these are one of the best speaker brands in today’s market. You won’t be disappointed at all. Very easy to install, professional quality and excellent sound. Definitely worth the money.

### ⭐⭐⭐⭐⭐ Review
*by く***ん on 3 May 2026*

中高音の音質がとてもいい 別途でウーファーつけてますがバランスよく鳴ってくれます 値段相応で個人的に満足してます

## Frequently Bought Together

- Kicker 51KSC6504 KS-Series 6.5" Coaxial Speakers with .75" tweeters, 4-Ohm, Pair
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-20*