Harman Kardon Onyx Studio 9 – Portable Stereo Bluetooth Speaker
The Harman Kardon Onyx Studio 9 combines iconic circular design with powerful, room-filling sound. A three-channel system with a dedicated center channel for crystal-clear vocals, surrounded by two tweeters, delivers a wide, immersive soundstage that brings your music to life. Sold brand new and sealed by Foretec Online.
Superior sound with Constant Sound Field technology
Get lost in your music with Constant Sound Field technology. The three-channel design – a 120mm woofer paired with three 20mm tweeters – delivers up to 50W RMS of rich, detailed audio with a wider soundstage than a typical single-driver speaker.
Iconic design, built to last
The clean, circular design looks great anywhere in the home. The integrated aluminium frame (made with 90% recycled aluminium) doubles as a sturdy handle and stand, the soft, durable fabric feels premium, and easy-to-use silicon buttons on top give you quick control. With an IPX4 rating, it shrugs off splashes, making it a confident choice by the pool, in the kitchen, or on the patio.
All-day battery & USB charging
A built-in rechargeable battery delivers up to 8 hours of playtime on a single charge, with a full recharge in around 4 hours. A built-in USB port also lets you charge your phone while you enjoy your music, so you never have to choose between the soundtrack and your battery.
Bluetooth streaming & multi-speaker Auracast
The Onyx Studio 9 pairs seamlessly with up to two mobile devices at once over Bluetooth 5.3, so friends can take turns sharing playlists. With Auracast, you can also connect two or more Harman Kardon speakers (or compatible speakers from other brands) to fill a bigger space with synchronized sound.
Self-tuning for the best sound, anywhere
When you power it on, the Onyx Studio 9 automatically calibrates to its surroundings, so it always delivers its best possible sound no matter where you set it down – on a shelf, table, or countertop.
Harman Kardon Onyx Studio 9 – Key Specifications
| Output power | 50W RMS |
| Transducers | 1x 120mm woofer, 3x 20mm tweeters |
| Frequency response | 50Hz – 20kHz (-6dB) |
| Bluetooth | Version 5.3, pairs 2 devices simultaneously |
| Multi-speaker | Auracast |
| Battery | Li-ion, up to 8 hours playtime |
| Charge time | Approx. 4 hours |
| Water/dust resistance | IPX4 (splash resistant) |
| Charging port | Built-in USB (for charging your phone) |
| Dimensions | 289.2 × 287.5 × 130 mm |
| Weight | 3.36 kg |
| Condition | Brand new, sealed |
Order Your Harman Kardon Onyx Studio 9 Today
Get the Harman Kardon Onyx Studio 9 Bluetooth speaker brand new from Foretec Online for ₦320,000. Add it to your cart now, or chat with us on WhatsApp to place your order and arrange fast delivery anywhere in Nigeria. Browse more speakers in our store.

























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