---
product_id: 314634663
title: "S8.4"
brand: "krk"
price: "128083 kr"
currency: ISK
in_stock: null
reviews_count: 8
category: "Krk"
url: https://www.desertcart.is/products/314634663-s8-4
store_origin: IS
region: Iceland
---

# 109W Class D amplification 8" glass aramid woofer 4-position selectable crossover S8.4

**Brand:** krk
**Price:** 128083 kr
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your mix with bass that commands attention.

## Quick Answers

- **What is this?** S8.4 by krk
- **How much does it cost?** 128083 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/314634663-s8-4)

## Best For

- krk enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Integration:** Exclusive bypass control keeps full-range audio flowing without interruption.
- • **Precision Bass Mastery:** Experience deep, tight bass down to 30Hz with crystal-clear accuracy.
- • **Customizable Soundscape:** Four-position crossover lets you tailor the sub perfectly to your monitors.
- • **Power Meets Portability:** Lightweight yet powerful Class D amp delivers 109W of punch without bulk.
- • **Sleek & Flexible Design:** Curved front-firing bass port fits effortlessly into any studio setup.

## Overview

The KRK S8.4 is a premium 8-inch powered studio subwoofer featuring a glass-aramid composite woofer and a powerful 109W Class D amplifier. It delivers precise bass extension down to 30Hz with a max SPL of 112 dB, enhanced by a four-position selectable crossover for seamless integration with studio monitors. Its curved design with a front-firing bass port offers flexible placement, while the exclusive bypass control ensures uninterrupted full-range audio. Ideal for professional music production and audiophile listening, the S8.4 combines compact form with high-end performance.

## Description

"The S8.4 powered studio subwoofer builds upon KRK’s legacy for sonic accuracy in a compact form factor. The custom-voiced, glass-aramid woofer delivers tight, defined bass, while the Class-D power amplifier dramatically increases transient response, control and punch. The four-position selectable crossover lets you adjust the subwoofer setting easily to your existing monitors. Pairing the S8.4 subwoofer with KRK or another studio monitor delivers an optimized mixing and listening experience with extended low end, while the exclusive bypass-control feature provides full range audio to the monitors without switching off the subwoofer. KRK’s S8.4 subwoofer doesn’t just deliver precise bass and a rich feature set: it’s the next dimension in subwoofer performance."

Review: Does bass <30hz & does it with accuracy. - A perfect match to my KRK V4S4 with the crossover set at 80hz. My JBL LSR310 sub had problems keeping up with the V4S4 output, even at -3db. Turning the JBL up to match output caused it to bottom out on bass heavy movies. The S12.4 stays clean & makes the bass needed to blend with the V4S4 with headroom to spare. Combined they are a soundbar killer. I've never heard a $4k soundbar but I'm guessing that's the starting point to match SQ of my set up. I'm using a Geshelli J3 DAC with V7 Classic opamps & a Topping A70 Pro as the preamp.
Review: Very nice for music (heavy, solid, no rattles/booms, no hum, perfect back-panel controls) - I was looking to add a sub to enhance the bass in my music. I'm a long-time audiophile who has owned many subs over the decades. My fronts (JBL 530s) are beautiful but have only 5.5" drivers and drop off precipitously below 70hz. The bass in my music is played by instruments, not computers- nothing below 35hz is needed. This placed me in the market for a tight 8" sub. A key attribute I demanded was the ability to defeat the "Standby" setting, as a sub turning on and off is unlistenable to. (Don't believe the BS that you can't hear this.) The KRK 9 emerged and I purchased it. It has a perfect set of back-panel controls. I calibrated and evaluated everything using test-tone webpages and careful listening to music I know by heart, a method easier and far more accurate than YPAO. This sub is heavy, solid (no rattles/ "booming"), no hum, and plays well in the octave I need. Yes, it's expensive, but it actually enhances my sound quality for music. I've attached a photo of the optimal controls when paired with very capable bookshelf speakers. There is a 2009 remaster of "Seconds Out" by Genesis and in the song "Firth of Fifth" you hear clearly and distinguished the bass guitar and bass drum. This is a new revelation to me for an important piece of music. Bravo!

## Features

- 8" glass aramid composite woofer
- Bass extension to 30Hz with a max SPL of 112 dB
- Footswitch control enables/disables sub and crossover filter (footswitch not included)
- Curved design with front-firing bass port for placement flexibility
- Powerful, lightweight Class D amplification

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0939NWYJR |
| Additional Features | Hi Res Audio |
| Age Range Description | Adult |
| Antenna Location | For Music Players |
| Audio Driver Size | 8 Inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #7,137 in Musical Instruments ( See Top 100 in Musical Instruments ) #1 in Studio Subwoofers |
| Brand | KRK |
| Built-In Media | Subwoofer |
| Color | Black |
| Compatible Devices | Desktop |
| Connectivity Protocol | XLR |
| Connectivity Technology | XLR |
| Control Method | Touch |
| Controller Type | Corded Electric |
| Customer Reviews | 4.6 out of 5 stars 303 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Enclosure Material | Glass Aramid Composite |
| Frequency Response | 133 Hz |
| Is Waterproof | False |
| Item Dimensions D x W x H | 16.12"D x 11.5"W x 11"H |
| Item Type Name | KRK S8.4 S8 Generation 4 8" 109 Watt Powered Studio Subwoofer |
| Item Weight | 26.5 Pounds |
| MP3 player | No |
| Manufacturer | Gibson |
| Model Name | S8.4-NA |
| Model Number | S8.4-NA |
| Mounting Type | Tabletop Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 5.1 or 7.1 |
| Number of Items | 1 |
| Power Source | Corded Electric |
| Processor Count | 1 |
| Signal-to-Noise Ratio | 92 dB |
| Speaker Maximum Output Power | 109 Watts |
| Speaker Size | 8 Inches |
| Speaker Type | Woofer |
| Specific Uses For Product | music production, recording studios |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 8 Inches |
| UPC | 711106052465 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Woofer Diameter | 8 Inches |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** KRK
- **Connectivity Technology:** XLR
- **Frequency Response:** 133 Hz
- **Speaker Maximum Output Power:** 109 Watts

## Images

![S8.4 - Image 1](https://m.media-amazon.com/images/I/61fQv2Rm--S.jpg)
![S8.4 - Image 2](https://m.media-amazon.com/images/I/61xmpkf+llS.jpg)
![S8.4 - Image 3](https://m.media-amazon.com/images/I/615qtKFYjcS.jpg)
![S8.4 - Image 4](https://m.media-amazon.com/images/I/71bz71C+0HS.jpg)
![S8.4 - Image 5](https://m.media-amazon.com/images/I/718uBbdVm2S.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does bass <30hz & does it with accuracy.
*by A***R on December 28, 2025*

A perfect match to my KRK V4S4 with the crossover set at 80hz. My JBL LSR310 sub had problems keeping up with the V4S4 output, even at -3db. Turning the JBL up to match output caused it to bottom out on bass heavy movies. The S12.4 stays clean & makes the bass needed to blend with the V4S4 with headroom to spare. Combined they are a soundbar killer. I've never heard a $4k soundbar but I'm guessing that's the starting point to match SQ of my set up. I'm using a Geshelli J3 DAC with V7 Classic opamps & a Topping A70 Pro as the preamp.

### ⭐⭐⭐⭐⭐ Very nice for music (heavy, solid, no rattles/booms, no hum, perfect back-panel controls)
*by C***R on April 6, 2025*

I was looking to add a sub to enhance the bass in my music. I'm a long-time audiophile who has owned many subs over the decades. My fronts (JBL 530s) are beautiful but have only 5.5" drivers and drop off precipitously below 70hz. The bass in my music is played by instruments, not computers- nothing below 35hz is needed. This placed me in the market for a tight 8" sub. A key attribute I demanded was the ability to defeat the "Standby" setting, as a sub turning on and off is unlistenable to. (Don't believe the BS that you can't hear this.) The KRK 9 emerged and I purchased it. It has a perfect set of back-panel controls. I calibrated and evaluated everything using test-tone webpages and careful listening to music I know by heart, a method easier and far more accurate than YPAO. This sub is heavy, solid (no rattles/ "booming"), no hum, and plays well in the octave I need. Yes, it's expensive, but it actually enhances my sound quality for music. I've attached a photo of the optimal controls when paired with very capable bookshelf speakers. There is a 2009 remaster of "Seconds Out" by Genesis and in the song "Firth of Fifth" you hear clearly and distinguished the bass guitar and bass drum. This is a new revelation to me for an important piece of music. Bravo!

### ⭐⭐⭐⭐⭐ When it kicks... it hits.
*by T***I on February 16, 2026*

Hands down the best subwoofer for a medium-sized room. Insanely responsive! It can hit those 20 Hz minimums without breaking a sweat. This thing gets LOUD. It's a hefty boy due to having the amp installed. We call these active speakers, kids. It is compact and will easily slide underneath your desk. I paired my subwoofer with the KRK Rockit 7 Gen 4s and have absolutely no regrets. The flat harmonics make this setup perfect for monitoring and music production.

## Frequently Bought Together

- KRK S8.4 S8 Generation 4 8" 109 Watt Powered Studio Subwoofer
- Cable Matters 2-Pack Premium XLR to XLR Cables - 6ft, Male to Female Microphone Cable, Oxygen-Free Copper (OFC) Mic Cord, Black
- Cable Matters 2-Pack 1/4 Inch TS to TS Electric Guitar Cable - 6ft, Guitar Amp Cord, Instrument Cable for ElectricGuitar, Mandolin, Bass AMP, Keyboard, Mixer, Equalizer

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-19*