---
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: "€ 627.46"
currency: EUR
in_stock: true
reviews_count: 6
category: "Harman Kardon"
url: https://www.desertcart.hr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built
store_origin: HR
region: Croatia
---

# Self-tuning for perfect sound anywhere 8-hour rechargeable battery life Multi-speaker wireless pairing 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:** € 627.46
**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?** € 627.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **Boost Your Soundstage:** Wirelessly pair two Onyx Studio 9 speakers for immersive stereo sound that fills the room.
- • **Stay Charged On-The-Go:** Built-in USB port keeps your devices powered while you stream your favorite playlists.
- • **Smart Self-Tuning Audio:** Automatically adapts to your environment for flawless sound clarity every time.
- • **8-Hour Portable Powerhouse:** Take your music anywhere with a long-lasting rechargeable battery and integrated handle.
- • **Seamless Dual-Device Bluetooth Streaming:** Switch effortlessly between two devices for uninterrupted party vibes.

## Overview

The Harman Kardon Onyx Studio 9 is a premium portable Bluetooth speaker featuring an 8-hour rechargeable battery, automatic self-tuning technology for optimal sound in any environment, and the ability to wirelessly pair two speakers for enhanced stereo performance. Its built-in USB charging port ensures your devices stay powered, while the sleek aluminum design and integrated handle make it the perfect stylish companion for home or on-the-move listening.

## Description

Elevate your everyday listening to an extraordinary sound experience with the Harman Kardon Onyx Studio 9. This elegant wireless Bluetooth® movable home speaker delivers superior audio performance with crystal-clear vocals, bright highs, and deep bass that make your favorite music feel thrillingly immersive. Constant Sound Field technology widens the soundstage and improves the clarity and detail of your music. The substantial integrated handle (made with 90% recycled aluminum) and built-in battery with 8 hours of playtime make the Onyx Studio 9 easy to move with you in and around your home, and a built-in USB port recharges your device while you enjoy your music. And thanks to automatic self-tuning, it always delivers the best possible sound performance wherever you set it down.

Review: The sound is good - The sound is good
Review: Realmente estoy muy complacido por la calidad de material de esta bocina, adquirí la Onyx Studio 4 hace un par de años pero la Onyx 9 supera mis expectativas. La calidad de audio es superior, bajos potentes y profundos, la recomiendo ampliamente, suficiente para una habitación mediana o dentro de la sala, recomiendo ampliamente la Onyx 9, vale la pena adquirirla.

## 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 |
| Age Range Description | Adult |
| Antenna Location | For smartphones or tablets, For music players, For computers |
| Audio Driver Size | 13 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 8 Hours |
| Best Sellers Rank | #42,937 in Electronics ( See Top 100 in Electronics ) #923 in Portable Bluetooth Speakers |
| Brand | Harman Kardon |
| Built-In Media | 1 x Harman Kardon Onyx Studio 9, Power Cable, Quick Start Guide, Safety Sheet, Warranty Card |
| Color | Black |
| Compatible Devices | Smartphone, Tablet, Television, Notebook, Desktop |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Control Method | App |
| Controller Type | App Control |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.7 4.7 out of 5 stars (366) |
| Enclosure Material | Aluminum |
| Frequency Response | 50 Hz |
| Is Waterproof | false |
| Item Dimensions D x W x H | 13D x 28.9W x 28.8H centimeters |
| Item Weight | 4.27 kg |
| MP3 player | No |
| Manufacturer | Harman Kardon |
| Model Name | HK Onyx Studio 9 |
| Model Number | HKOS9BLKAM |
| Mounting Type | Portable |
| Number Of Circuits | 3 |
| Number of Audio Channels | 2.0 |
| Number of Batteries | 1 9V batteries required. |
| 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 |
| Specific Uses For Product | Portable Use |
| UPC | 028292291104 |
| Unit Count | 1.0 Count |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 12 Centimeters |

## Product Details

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

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The sound is good
*by E***A on 9 January 2025*

The sound is good

### ⭐⭐⭐⭐⭐ Review
*by G***. on 11 February 2026*

Realmente estoy muy complacido por la calidad de material de esta bocina, adquirí la Onyx Studio 4 hace un par de años pero la Onyx 9 supera mis expectativas. La calidad de audio es superior, bajos potentes y profundos, la recomiendo ampliamente, suficiente para una habitación mediana o dentro de la sala, recomiendo ampliamente la Onyx 9, vale la pena adquirirla.

### ⭐⭐⭐⭐⭐ Review
*by L***N on 21 February 2026*

Amazing bass, decent battery life. Easily portable. Good size. Functions as intended. Price was worth it for the value.

## 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.hr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built](https://www.desertcart.hr/products/678515803-onyx-studio-9-portable-stereo-bluetooth-home-speaker-with-built)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-23*