---
product_id: 703199385
title: "Onyx Studio 9, Portable Bluetooth Speaker, Auracast Multi-Speaker Connection, Adaptive Self-Tuning, Constant Sound Field Technology, USB Charging Port, Grey, EU Plug (Type C)"
brand: "harman kardon"
price: "€ 640.29"
currency: EUR
in_stock: true
reviews_count: 7
category: "Harman Kardon"
url: https://www.desertcart.es/products/703199385-onyx-studio-9-portable-bluetooth-speaker-auracast-multi-speaker-connection
store_origin: ES
region: Spain
---

# Auracast multi-speaker connection 3.0 surround sound channel 8 hours battery life Onyx Studio 9, Portable Bluetooth Speaker, Auracast Multi-Speaker Connection, Adaptive Self-Tuning, Constant Sound Field Technology, USB Charging Port, Grey, EU Plug (Type C)

**Brand:** harman kardon
**Price:** € 640.29
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Onyx Studio 9, Portable Bluetooth Speaker, Auracast Multi-Speaker Connection, Adaptive Self-Tuning, Constant Sound Field Technology, USB Charging Port, Grey, EU Plug (Type C) by harman kardon
- **How much does it cost?** € 640.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/703199385-onyx-studio-9-portable-bluetooth-speaker-auracast-multi-speaker-connection)

## 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

- • **All-Day Music Freedom:** Up to 8 hours of uninterrupted playback with USB charging to keep your devices powered on the go.
- • **Portable Powerhouse Design:** Sleek, durable, and easy to carry with a built-in handle—style meets convenience for your lifestyle.
- • **Seamless Multi-Speaker Sync:** Wirelessly pair 2 Onyx Studio 9 or connect multiple Auracast-compatible speakers for epic soundscapes.
- • **Smart Customization via App:** Personalize your sound with the Harman Kardon ONE app’s EQ settings for your perfect vibe.
- • **Immersive 3D Sound Experience:** Crystal-clear vocals, deep bass, and adaptive self-tuning for flawless audio anywhere.

## Overview

The Harman Kardon Onyx Studio 9 is a premium portable Bluetooth speaker featuring 3.0 surround sound, adaptive self-tuning technology, and Auracast multi-speaker connectivity. With up to 8 hours of battery life and USB charging, it delivers immersive, customizable audio in a sleek, durable design perfect for both indoor and outdoor use.

## Description

Harman Kardon Portable Bluetooth Speakers Harman Kardon Bluetooth speakers have exceptional sound quality and sleek design. The speakers deliver rich, immersive sound with crystal clear vocals, clear highs and deep bass. So you can hear every note and nuance of your favorite music. Whether you use the speakers indoors or outdoors. Thanks to the built-in battery for long playtime and strong, durable materials, the Harman Kardon Bluetooth speakers are perfect for taking out the door. Some models have additional functionalities, such as Automatic Self-tuning. This optimizes the sound based on your environment. Or the function of pairing multiple Harman Kardon speakers together for the ultimate stereo experience. Harman Kardon Bluetooth speakers combine style, functionality and superior sound quality – the perfect choice for any listening occasion.

Review: Great Speaker - Great speaker for indoor use. Set up in my room, everything you need performance-wise. Great for movies and music.
Review: Top - Ok , am soo glad i lost my portable jbl, i mean wow just wow.. quality of sound is top..

## Features

- Immersive audio: The Onyx Studio 9 wireless Bluetooth speaker delivers crystal clear vocals, clear highs and deep bass. Thanks to the handle you can take it anywhere.
- Convenient Smart Speaker: Charge your mobile device via the USB port and enjoy up to 8 hours of music. This portable Bluetooth speaker is easy to move from room to room.
- Boost the sound: Wirelessly pair 2 Onyx Studio 9 speakers together or use Auracast to connect multiple Auracast-compatible speakers, even from other brands.
- Self-Tuning: When Self-Tuning is on, the Onyx Studio wireless speaker automatically adjusts the sound to the environment. So you always have the best sound, no matter where the speaker is.
- Personalized settings: Use the Harman Kardon ONE app to easily set up your Onyx Studio 9. For example, with the EQ settings, adjust the amount of bass.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DT79T1B1 |
| Best Sellers Rank | 2,086 in Portable Bluetooth Speakers |
| Colour | grey |
| Compatible devices | Laptop, Smartphone, Tablet, Television |
| Control method | App |
| Guaranteed software updates until | unknown |
| Impedance | 20 Ohms |
| Included components | 1 x Harman Kardon Onyx Studio 9, 1 x Power Cord, Quick Start Guide, Safety Sheet, Warranty Card |
| Is waterproof | False |
| Item model number | HKOS9GRYEP |
| Item weight | 3.33 Kilograms |
| Manufacturer | harman kardon |
| Number of items | 5 |
| Power source | Battery Powered, Corded Electric |
| Product dimensions | 31.2D x 32.2W x 17.2H centimetres |
| Recommended uses for product | For Smartphones or Tablets, For Music Players, For Computers, For Televisions, For Surround Sound Systems |
| Speaker size | 31.5 Centimetres |
| Special feature | Bass Boost, Hi Res Audio, Multi Room Audio, Portable, Stereo Pairing |
| Surround-sound channel configuration | 3.0 |
| Unit count | 1.0 count |
| Warranty type | Limited |
| Wireless communication technology | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Harman Kardon
- **Connectivity technology:** Bluetooth
- **Frequency response:** 50 KHz
- **Input voltage:** 3.63 Volts
- **Material:** Metal
- **Model name:** Harman Kardon Onyx Studio 9
- **Mounting type:** Ceiling Mount
- **Speaker maximum output power:** 50 Watts
- **Speaker type:** portable_speaker

## Images

![Onyx Studio 9, Portable Bluetooth Speaker, Auracast Multi-Speaker Connection, Adaptive Self-Tuning, Constant Sound Field Technology, USB Charging Port, Grey, EU Plug (Type C) - Image 1](https://m.media-amazon.com/images/I/814B5jXqNVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Speaker
*by M***D on 10 September 2025*

Great speaker for indoor use. Set up in my room, everything you need performance-wise. Great for movies and music.

### ⭐⭐⭐⭐⭐ Top
*by L***S on 11 June 2025*

Ok , am soo glad i lost my portable jbl, i mean wow just wow.. quality of sound is top..

### ⭐⭐⭐⭐⭐ Review
*by J***L on 7 November 2025*

He tenido muchos JBL y harman kardon como, Onyx Studio 4, Onyx Studio 5, incluso harman go play 3,(que lo vendi a la semana siguiente jeje) para mi es mas portatil y mejor el onyx studio 9, quiero decir que este es el que mejor sonido me a dado, ya que es ecualizable,portable etc, lo cual escucho detalles mas detallados que en los otros modelos mencionados, aqui dejo una foto de como lo tengo yo pero se puede personalizar como querais. Tuve también un soundcore boom plus, pero este onyx 9 me parece de mayor calidad y bajos mucho mas profundos. Lo recomiendo un montón, eso si desde el 1° dia ecualizarlo vais a notar muchisimo la mejora en sonido. Por lo demas super contento, soy un tio dificil de conquistar por un altavoz, ya que los vendo o devuelvo casi todos, y este es mejor de lo que esperaba. Lo recomiendo.

## Frequently Bought Together

- Harman Kardon Onyx Studio 9, Portable Bluetooth Speaker, Auracast Multi-Speaker Connection, Adaptive Self-Tuning, Constant Sound Field Technology, USB Charging Port, 8 Hours Battery Life, Grey
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-20*