---
product_id: 314634663
title: "S8.4"
brand: "krk"
price: "€ 951.83"
currency: EUR
in_stock: false
reviews_count: 13
category: "Krk"
url: https://www.desertcart.at/products/314634663-s8-4
store_origin: AT
region: Austria
---

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

**Brand:** krk
**Price:** € 951.83
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your studio sound—where precision meets power.

## Quick Answers

- **What is this?** S8.4 by krk
- **How much does it cost?** € 951.83 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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

- • **Pro-Level Control:** Footswitch-enabled bypass and crossover filter (footswitch sold separately) for instant workflow flexibility.
- • **Compact Powerhouse:** Sleek curved design with front-firing bass port fits effortlessly under your desk without sacrificing punch.
- • **Seamless Integration:** Four-position crossover lets you tailor subwoofer output perfectly to your monitors for flawless mixing synergy.
- • **Lightweight Yet Mighty:** Advanced Class D amplification delivers powerful transient response in a surprisingly portable 26.5 lb frame.
- • **Precision Bass Mastery:** Experience ultra-tight, defined bass down to 30Hz with 112 dB max SPL—feel every beat with studio-grade clarity.

## Overview

The KRK S8.4 Generation 4 powered subwoofer features an 8" glass aramid composite woofer driven by a 109-watt Class D amplifier, delivering deep bass extension down to 30Hz with a max SPL of 112 dB. Its four-position selectable crossover and footswitch control enable seamless integration with studio monitors, while the compact curved design with front-firing bass port offers flexible placement. Ideal for professional music production and recording studios, it combines precision, power, and portability in one sleek package.

## 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: When it kicks... it hits. - 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.
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.

## 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 | #7,229 in Musical Instruments ( See Top 100 in Musical Instruments ) #2 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 4.6 out of 5 stars (306) |
| 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)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Perfect addition to v8’s
*by S***. on February 6, 2026*

Amazing sound. Finally got to pair the 8 inch sub with my krk v8 series 2 monitors I got in 2004, which still to this day, are my daily monitors for my log cabin studio. This added that low end I was lacking. Now just to get a center and surrounds. I think I’ll aim for a small rokit kit for this.

## 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 Austria*
*Store origin: AT*
*Last updated: 2026-05-04*