---
product_id: 678515803
title: "Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black"
brand: "harman kardon"
price: "€ 425.38"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built
store_origin: FR
region: France
---

# Self-tuning for perfect sound 8-hour rechargeable battery life Pair 2 speakers wirelessly Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black

**Brand:** harman kardon
**Price:** € 425.38
**Availability:** ✅ In Stock

## Summary

> 🎶 Elevate your sound, anywhere you go—because ordinary just won’t do.

## Quick Answers

- **What is this?** Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black by harman kardon
- **How much does it cost?** € 425.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built)

## 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

- • **8-Hour Portable Power:** Take your soundtrack anywhere with a long-lasting rechargeable battery.
- • **Wireless Stereo Boost:** Pair two Onyx Studio 9 speakers for an immersive, expansive soundstage.
- • **USB Charging On-the-Go:** Keep your phone powered while you play—never miss a beat or a call.
- • **Smart Self-Tuning Audio:** Automatically adapts to your space for flawless, room-filling sound.
- • **Seamless Dual-Device Bluetooth Streaming:** Switch effortlessly between two devices and keep the vibe flowing.

## Overview

The Harman Kardon Onyx Studio 9 is a sleek, portable Bluetooth speaker featuring an 8-hour rechargeable battery, smart self-tuning technology for optimal sound in any environment, and the ability to wirelessly pair two speakers for enhanced stereo performance. It also includes a USB charging port to keep your devices powered and supports seamless streaming from two devices simultaneously, all controllable via the Harman Kardon One app.

## Description

Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black

## Features

- Bluetooth music streaming: The Harman Kardon Onyx Studio 9 pairs seamlessly with up to two mobile devices simultaneously. Take turns sharing playlists and music, all in enhanced, dynamic sound.
- Built-in battery: With its rechargeable built-in battery, you can enjoy the Harman Kardon Onyx Studio 9 anywhere in your home, and easily transport it from one room to another for up to 8 hours of playtime
- Self-Tuning: Enjoy perfect sounds wherever you take the music. When you power on, the Onyx Studio 9 automatically calibrates to its environment, ensuring the best sound possible no matter where you set it down.
- Boost stereo sound with two speakers: Quickly and easily turn up the celebration with a wider, more detailed soundstage by pairing two Onyx Studio 9 speakers together, wirelessly.
- USB Charging port: Never worry about your mobile device running out of juice while you're streaming your favorite audiobook. The USB charging port means you and your device will always be ready for anything.
- Harman Kardon One App: The Harman Kardon One app helps you easily set up the Onyx Studio 9 and personalize audio settings. You can also customize EQ and control all your compatible speakers in one convenient place.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DMHLTDBX |
| Additional Features | Built-In Powerbank, Lightweight, Multi Room Audio, Portable, USB Port |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 8 Hours |
| Best Sellers Rank | #252 in Portable Bluetooth Speakers #2,384 in MP3 & MP4 Player Accessories |
| Brand | Harman Kardon |
| Built-In Media | 1 x Harman Kardon Onyx Studio 9, 1 x Power Cable, Quick Start Guide, Safety Sheet, Warranty Card |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet |
| Connectivity Protocol | Bluetooth, USB |
| Connectivity Technology | Bluetooth, USB |
| Control Method | App |
| Customer Reviews | 4.7 out of 5 stars 264 Reviews |
| Enclosure Material | Metal |
| Frequency Response | 20000 KHz |
| Is Waterproof | False |
| Item Dimensions D x W x H | 5.12"D x 11.39"W x 11.32"H |
| MP3 player | No |
| Manufacturer | Harman Kardon |
| Model Name | HK Onyx Studio 9 |
| Model Number | HKOS9BLKAM |
| Mounting Type | Floor Standing |
| Number of Audio Channels | 3.0 |
| Number of Batteries | 1 9V batteries required. (included) |
| Number of Items | 1 |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 80 dB |
| Speaker Maximum Output Power | 50 Watts |
| Speaker Size | 13 Centimeters |
| Speaker Type | Portable Speaker |
| UPC | 028292291104 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year manufacturers warranty |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Harman Kardon
- **Speaker maximum output power:** 50 Watts
- **Frequency response:** 50 Hz
- **Connectivity technology:** Bluetooth
- **Audio output mode:** Stereo

## Images

![Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black - Image 1](https://m.media-amazon.com/images/I/A19xR9Pri8L.jpg)

## Frequently Bought Together

- Harman Kardon Onyx Studio 9 - Portable Stereo Bluetooth Home Speaker with Built-in Battery and USB Charging, self-Tuning, and Multi-Speaker Connection by Auracast - Black
- LTGEM Case Compatible with Harman Kardon Onyx Studio 9 Speaker, Black

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**Shop now:** [https://www.desertcart.fr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built](https://www.desertcart.fr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-01*