---
product_id: 573074761
title: "Onyx Studio 8 Portable Bluetooth Speaker Black 50 W"
brand: "harman kardon"
price: "£199.41"
currency: GBP
in_stock: true
reviews_count: 13
category: "Harman Kardon"
url: https://www.desertcart.co.uk/products/573074761-onyx-studio-8-portable-bluetooth-speaker-black-50-w
store_origin: GB
region: United Kingdom
---

# Waterproof design 50W powerful output 8-hour battery life Onyx Studio 8 Portable Bluetooth Speaker Black 50 W

**Brand:** harman kardon
**Price:** £199.41
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound game—wherever life takes you!

## Quick Answers

- **What is this?** Onyx Studio 8 Portable Bluetooth Speaker Black 50 W by harman kardon
- **How much does it cost?** £199.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/573074761-onyx-studio-8-portable-bluetooth-speaker-black-50-w)

## Best For

- harman kardon enthusiasts

## Why This Product

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

## Key Features

- • **Portable Powerhouse:** Weighing just 4.5 kg, this tabletop mount speaker moves with you—whether it’s home, office, or outdoor hangouts.
- • **All-Day Wireless Freedom:** Enjoy up to 8 hours of uninterrupted playback with quick 5-hour recharge—perfect for workdays and weekend vibes.
- • **Rugged Yet Refined Design:** Crafted with premium aluminum and waterproof casing, built to elevate your space and withstand life’s adventures.
- • **Immersive 50W Stereo Sound:** Experience crystal-clear, distortion-free audio that fills any room with rich bass and balanced highs.
- • **Seamless Bluetooth Connectivity:** Effortlessly pair with smartphones, tablets, and laptops within a 10-meter range for instant music on demand.

## Overview

The Harman Kardon Onyx Studio 8 is a premium portable Bluetooth speaker delivering 50 watts of powerful stereo sound with deep bass and clear highs. Featuring an 8-hour battery life, waterproof aluminum enclosure, and seamless Bluetooth connectivity up to 10 meters, it’s designed for professionals who demand exceptional audio quality and stylish durability on the go.

## Description

If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy HARMAN KARDON Onyx Studio 8 Black 50 W Portable Bluetooth Speaker at an unbeatable price. Colour: Black Connectivity: Bluetooth Power: 50 W Type: Bluetooth Speaker

Review: Phenomenal sound quality and volume at this price point - Phenomenal sound quality and construction quality. Fairly weighty (~3kg) much like the bass it produces! Can be carried easily from room to room within the house, looks great, and as long as it being a bit bigger isn’t problematic for you (i.e. you’re not planning to take it to the park) then this is the best quality sound and volume you can get at this price point! Very easy to connect to my iPhone first time, and effortless reconnection moving forwards. Haven’t yet tested the battery life.
Review: Bluetooth speaker speaker of good quality and of good price. Harman kardon - This is got to be one of the best portable Bluetooth speakers on the market at the moment. I can only tell you that I'm blown away by the sound quality. The sound is well balanced and even though music it's downloaded it's really good. The bass is amazing and the top end as well is equally impressive. Even when I play the speaker at full volume there is no distortion. The sound quality is still the same. Totally happy with this product. I can only say don't even bother to shorten it. Just get it. Just buy. It will be disappointed by your purchase

## Features

- Brand Portable Bluetooth Speaker HARMAN KARDON
- Colour: multi-coloured
- Dimensions: 21.8 x 19.7 x 18 cm
- Reference: S7821744
- If you are passionate about IT and electronics, you like to be up to date on technology and don't miss the details!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BLBW4R22 |
| Age Range Description | Adult |
| Antenna Location | For televisions, For gaming consoles, For smartphones or tablets, For computers, For surround sound systems |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 8 Hours |
| Battery Charge Time | 5 Hours |
| Best Sellers Rank | 501 in Portable Bluetooth Speakers |
| Bluetooth Range | 10 Metres |
| Box Contents | Gehäuse |
| Brand Name | Harman Kardon |
| Colour | multicoloured |
| Compatible Devices | Smartphone, Tablet, Laptop |
| Connectivity Protocol | Bluetooth |
| Control Method | Remote |
| Controller Type | Remote Control |
| Customer Package Type | FFP |
| Customer Reviews | 4.4 4.4 out of 5 stars (140) |
| Enclosure Material | Aluminium |
| Is Waterproof | True |
| Item Dimensions D x W x H | 8D x 8W x 8H centimetres |
| Item Weight | 4.54 Kilograms |
| MP3 player | No |
| Manufacturer | HARMAN KARDON |
| Maximum Speaker Output Power (in watts) | 50 Watts |
| Model Name | HKOS8 |
| Model Number | HK.HKOS8BLKEP |
| Mounting Type | Tabletop Mount |
| Network Connectivity Technology | Bluetooth |
| Number Of Circuits | 1 |
| Number of Audio Channels | 2.1 |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Power Source | Battery Powered |
| Processor Count | 1 |
| Product Features | Bluetooth |
| Series Number | 8 |
| Signal-to-Noise Ratio | 80 dB |
| Speaker Size | 12 Millimetres |
| Speaker Type | Portable Bluetooth Speaker, Outdoor Speaker |
| Specific Uses For Product | home_entertainment, outdoor, in-car |
| Subwoofer Connectivity Technology | Wireless |
| Tweeter Diameter | 12 Millimetres |
| Unit Count | 1.0 count |
| Warranty Type | Limited |
| Water Resistance Level | Waterproof |
| Wireless Technology Type | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Harman Kardon
- **Connectivity technology:** Bluetooth
- **Material:** Aluminium
- **Model name:** HKOS8
- **Mounting type:** Tabletop Mount
- **Speaker maximum output power:** 50 Watts
- **Speaker type:** Portable Bluetooth Speaker, Outdoor Speaker
- **Special feature:** Bluetooth

## Images

![Onyx Studio 8 Portable Bluetooth Speaker Black 50 W - Image 1](https://m.media-amazon.com/images/I/81LG8OTAqaL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Phenomenal sound quality and volume at this price point
*by G***S on 11 November 2025*

Phenomenal sound quality and construction quality. Fairly weighty (~3kg) much like the bass it produces! Can be carried easily from room to room within the house, looks great, and as long as it being a bit bigger isn’t problematic for you (i.e. you’re not planning to take it to the park) then this is the best quality sound and volume you can get at this price point! Very easy to connect to my iPhone first time, and effortless reconnection moving forwards. Haven’t yet tested the battery life.

### ⭐⭐⭐⭐⭐ Bluetooth speaker speaker of good quality and of good price. Harman kardon
*by N***E on 11 October 2025*

This is got to be one of the best portable Bluetooth speakers on the market at the moment. I can only tell you that I'm blown away by the sound quality. The sound is well balanced and even though music it's downloaded it's really good. The bass is amazing and the top end as well is equally impressive. Even when I play the speaker at full volume there is no distortion. The sound quality is still the same. Totally happy with this product. I can only say don't even bother to shorten it. Just get it. Just buy. It will be disappointed by your purchase

### ⭐⭐⭐⭐⭐ I love onyx studio
*by M***O on 20 January 2026*

The only difference btwn onyx studio 7 and onyx studio 8 is type c connecting port on 8. Otherwise same good quality sound and big bass. ❤️

## Frequently Bought Together

- Harman Kardon Onyx Studio 8 Portable Bluetooth Speaker Black 50 W
- HARMAN KARDON Onyx Studio 8 Portable Bluetooth Speaker
- Microsoft Xbox Wireless Controller Electric Volt Vert, Couleur Menthe Bluetooth Joystick Analogique/Numérique Xbox, Xbo

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-20*