The Harman Kardon Onyx Studio 9 is the ninth generation of the round speaker that Harman Kardon has been making for more than a decade, and Black is the classic version of it. The aluminium frame doubles as a handle and stand, the body is wrapped in fabric, and inside are one woofer and three tweeters rated at 50 W RMS. It is a home speaker you can carry from room to room, not a rugged outdoor one, and the black finish is the one that disappears best next to a TV or dark furniture.
Table of Contents
Harman Kardon Onyx Studio 9 in Black: where it fits
Black suits a living room with a dark TV unit, a walnut or oak shelf, or a bedroom with dark bedside tables. The round shape is a design piece, and in black it reads as a quiet object rather than a gadget. Black fabric does hide spills and marks well, although dust and lint can show on it in a bright room, so a quick pass with a lint roller or a soft brush now and then keeps it looking right.
The aluminium frame, which Harman Kardon says uses 90% recycled content, works as a carry handle and a stand, so you can move the speaker from the majlis to the kitchen without unplugging anything else.
Harman Kardon Onyx Studio 9 sound: 50 W RMS from four drivers
Harman Kardon lists one 120 mm woofer and three 20 mm tweeters, a rated output of 50 W RMS, a frequency response of 50 Hz to 20 kHz (-6 dB) and a signal-to-noise ratio above 80 dB. The 50 W figure is an RMS rating; Harman Kardon does not publish a separate peak figure, and it does not say whether the full 50 W is available on battery as well as on mains power.
The spec sheet also mentions self-tuning and what Harman Kardon calls Constant Sound Field technology, and the Harman Kardon One app adds a custom EQ. For a medium-sized room, the Harman Kardon Onyx Studio 9 is built to fill the space with stereo sound rather than to play very loud outdoors.
Power: battery, mains cable and UAE voltage
Inside the Harman Kardon Onyx Studio 9 is a Li-ion battery rated at 17.15 Wh (3.63 V / 4722 mAh). Harman Kardon quotes up to 8 hours of playtime, depending on volume and content, and about 4 hours to charge.
For mains power, the speaker takes a power cable directly, and the AC input is 100-240 V at 50/60 Hz, so it works on UAE 220-240 V sockets without a converter. There is also a USB-C port rated at 5 V / 2.1 A maximum, which Harman Kardon lists for charging a phone from the speaker.
Connectivity and multi-speaker Auracast
The Harman Kardon Onyx Studio 9 uses Bluetooth 5.3 with A2DP 1.4 and AVRCP 1.6, and can be paired with two phones or tablets at once. Harman Kardon does not list which audio codecs it supports.
With Auracast you can link two or more Harman Kardon speakers, or compatible Auracast speakers from other brands, and play the same music on all of them. Setup, EQ and speaker grouping are handled in the Harman Kardon One app.
Who This Is Not For
The Harman Kardon Onyx Studio 9 weighs 3.36 kg and has no published water or dust rating, so it is not a beach or pool speaker. Harman Kardon lists no microphone, so do not plan to use it for calls. The battery gives up to 8 hours, less than many outdoor speakers. And if you need a specific codec such as LDAC or aptX, Harman Kardon does not list any, so assume standard Bluetooth playback.
Buying the Harman Kardon Onyx Studio 9 from Totot
We deliver across the UAE within three business days, free for orders of AED 300 and above, with the current fee for smaller baskets shown at checkout. Defective or non-matching items can be returned within 14 days, and please report any shipping damage within 48 hours. The speaker comes with a 1-year warranty from Totot.
The same speaker is also available in Grey, which suits lighter rooms.
Technical Specifications
- Model: Harman Kardon Onyx Studio 9
- Colour: Black
- Drivers: 1 × 120 mm woofer, 3 × 20 mm tweeters
- Rated output: 50 W RMS (no peak figure published)
- Frequency response: 50 Hz – 20 kHz (-6 dB)
- Signal-to-noise ratio: > 80 dB
- Bluetooth: 5.3, A2DP 1.4, AVRCP 1.6; two devices at once
- Multi-speaker: Auracast
- App: Harman Kardon One (EQ, setup, grouping)
- Battery: Li-ion 17.15 Wh (3.63 V / 4722 mAh)
- Playtime: Up to 8 h (depends on volume and content)
- Charging time: About 4 h
- Mains input: 100-240 V AC, 50/60 Hz (power cable included)
- USB-C port: 5 V / 2.1 A max, for charging a phone
- Water and dust rating: None published
- Dimensions: 289.2 × 287.5 × 130 mm
- Weight: 3.36 kg
- In the box: Speaker, power cable, quick start guide, safety sheet, warranty card
- Warranty: 1-year warranty from Totot
Specifications come from Harman Kardon’s official Onyx Studio 9 product page and spec sheet. Full details are published on the Harman Kardon official website.
FAQ
Is the 50 W figure RMS or peak?
RMS. Harman Kardon rates the Onyx Studio 9 at 50 W RMS and does not publish a peak figure.
Does the Harman Kardon Onyx Studio 9 work on UAE sockets?
Yes. The mains input is 100-240 V AC at 50/60 Hz, which covers UAE 220-240 V power.
How long does the battery last?
Up to 8 hours, depending on volume and content, with about 4 hours to recharge.
Is it waterproof?
No. Harman Kardon publishes no IP rating for it, so keep it indoors and away from water.
Can I take calls on it?
No. Harman Kardon lists no microphone or speakerphone function.
Does black fabric show dust?
Yes, a little in bright rooms. It hides spills well; a lint roller or soft brush removes dust.
Browse more in our Portable Speakers range. Every order from Totot carries a 1-year warranty covering manufacturing defects, with our 14-day return policy for defective or non-compliant items, and nationwide UAE delivery.
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