Harman Kardon HKOS8BLKAM
Harman Kardon Onyx Studio 8 User Manual
Model: HKOS8BLKAM
Introduction
Welcome to the Harman Kardon Onyx Studio 8 user manual. This guide provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your new portable Bluetooth speaker. The Onyx Studio 8 is designed to deliver rich, immersive stereo sound with an elegant design crafted from sustainable materials.
Its sleek anodized aluminum handle allows for easy portability, and with up to 8 hours of battery life, you can enjoy high-quality audio and crystal-clear wireless calls throughout your day.
What's in the Box
- Harman Kardon Onyx Studio 8 Speaker
- Power Cable
Product Overview
The Harman Kardon Onyx Studio 8 combines superior sound performance with an elegant, eco-friendly design. Key features include:
- Superior Sound Performance: Unrivaled acoustic engineering for rich, room-filling sound.
- Elegant Design: Crafted from premium, sustainable materials with a sleek anodized aluminum handle that doubles as a sturdy base.
- Self-Tuning: Automatically calibrates to its environment for optimal sound quality.
- Bluetooth Streaming: Seamlessly pairs with any Bluetooth device, allowing simultaneous connection of two devices.
- Long Battery Life: Up to 8 hours of playback on a single charge.
- Eco-friendly Materials: Made with recycled plastic, recycled polyester yarn for the grille fabric, and FSC-certified paper packaging with soy ink.

Figure 1: Front view of the Harman Kardon Onyx Studio 8 speaker, showcasing its spherical design and integrated handle.

Figure 2: Top view of the speaker, showing the control buttons for power, Bluetooth, volume, and call management.

Figure 3: Side view illustrating the elegant anodized aluminum handle that also functions as a stable base.

Figure 4: Rear view of the speaker, showing the power input and other connection ports.
Setup
1. Charging the Speaker
Before first use, fully charge your Onyx Studio 8. Connect the supplied power cable to the speaker's power input and then to a wall outlet. The charging indicator light will show the charging status.
- Charging Time: Approximately 5 hours for a full charge.
2. Powering On/Off
Press the Power button located on the top of the speaker to turn it on or off.
3. Bluetooth Pairing
- Turn on your Onyx Studio 8.
- Press the Bluetooth button on the top of the speaker. The Bluetooth indicator will start blinking, indicating it's in pairing mode.
- On your mobile device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "Harman Kardon Onyx Studio 8" from the list of devices.
- Once connected, the Bluetooth indicator will glow solid blue.
The Onyx Studio 8 can connect to two Bluetooth devices simultaneously, allowing you to switch between audio sources easily.
Operating Instructions
1. Controls
| Button | Function |
|---|---|
| Power Button | Turns the speaker on or off. |
| Bluetooth Button | Initiates Bluetooth pairing mode. |
| Volume - | Decreases volume. |
| Volume + | Increases volume. |
| Call Button | Answers/ends calls, or activates voice assistant. |
2. Self-Tuning Feature
The Onyx Studio 8 features an automatic self-tuning function. When you power on the speaker or move it to a new location, it will automatically calibrate its audio output to optimize sound performance for the specific environment. This ensures the best possible sound quality regardless of where the speaker is placed.
3. Making and Receiving Calls
The built-in microphone allows for crystal clear wireless calls.
- To answer an incoming call: Press the Call button once.
- To end a call: Press the Call button once during a call.
- To reject an incoming call: Press and hold the Call button for 2 seconds.
- To activate voice assistant (Siri, Google Assistant, etc.): Press and hold the Call button for 2 seconds when not on a call.
Maintenance
1. Cleaning
To clean your Onyx Studio 8, use a soft, dry cloth. Do not use abrasive cleaners, alcohol, benzene, or other chemicals, as these may damage the surface of the speaker.
2. Storage
When not in use for extended periods, store the speaker in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the speaker is fully charged before storing to preserve battery health.
Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| No power |
|
| No sound |
|
| Bluetooth connection unstable or drops |
|
| Cannot pair with a new device |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | Harman Kardon Onyx Studio 8 |
| Speaker Type | Portable Bluetooth Speakers |
| Special Feature | Portable |
| Recommended Uses | Music, Outdoor Activities, Travel, Home Use, Environmentally Conscious Consumers |
| Compatible Devices | Tablet (and other Bluetooth-enabled devices) |
| Battery Life | 8 Hours |
| Charging Time | 5 Hours |
| Product Dimensions (D x W x H) | 6.45"D x 12.28"W x 10.86"H |
| Item Weight | 9.9 pounds (4.5 Kilograms) |
| Wireless Communication Technology | Bluetooth |
| Speaker Size | 8 Inches |
| Power Source | Battery Powered |
| Woofer Diameter | 4.72 Inches |
| Tweeter Diameter | 20 Millimeters |
| Water Resistance Level | Not Water Resistant |
| Bluetooth Range | 10 Meters |
| Connectivity Protocol | Bluetooth |
| Speaker Maximum Output Power | 50 Watts |
| Audio Output Mode | Stereo |
Warranty and Support
Warranty Information
The Harman Kardon Onyx Studio 8 comes with a Limited Warranty. Please refer to the warranty card included with your product or visit the official Harman Kardon website for detailed terms and conditions regarding warranty coverage and duration.
Customer Support
For further assistance, technical support, or service inquiries, please visit the official Harman Kardon support website or contact their customer service. You can usually find contact information and FAQs on their website:
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