- Amidio
- Audio
- Harman-Kardon
- Onyx Studio 9
Harman-KardonBluetooth speaker
Harman-Kardon Onyx Studio 9
Harman-Kardon Onyx Studio 9 is a Bluetooth speaker released in 2025. Key specs: battery life 8 h, output power 50 W, Bluetooth version 5.3, weight 3,300 g.
5.0Score
Sound6.4
Battery4.0
price range$140–175Reference price converted from EUR
- Year
- 2025
- Brand
Harman-Kardon- Popularity
- #477 of 2,013
- Model numbers
8 hBattery life
50 WOutput power
5.3Bluetooth version
3,300 gWeight
Spec guide
How it ranks among Bluetooth speakers of 2025
Battery life · 8 hBottom 29%Output power · 50 WBottom 47%Bluetooth version · 5.3Bottom 40%Weight · 3,300 gBottom 23%
Compared with Bluetooth speakers released in 2025. Bars show the share of models it beats.
Specifications
Full specifications
Sound
- Output power
- 50 W
- Speaker channels
- Stereo
- Lowest frequency
- 50 Hz
- Highest frequency
- 20,000 Hz
- Stereo
- Yes
Battery & charging
- Battery life
- 8 h
- Battery capacity
- 4,722 mAh
- Charging time
- 4 h
- Power bank function
- Yes
- Mains powered
- No
- Battery powered (portable)
- Yes
Connectivity
- Wireless
- Yes
- Hi-res codec (LDAC / aptX HD / LHDC)
- No
- aptX
- No
- LDAC
- No
- Auracast
- Yes
- USB-C
- Yes
- 3.5 mm jack / AUX
- Yes
Design & build
- Weight
- 3,300 g
- Width
- 389 mm
- Height
- 388 mm
- Depth
- 130 mm
- Colours
- Black
Features
- Hands-free calls
- Yes
- Party / stereo pairing
- Yes
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
In collections
Headphones & speakers: Output power from 50 W + battery powered (portable)53Bluetooth speakers: Output power from 50 W80Headphones & speakers: Output power from 20 W + battery powered (portable)100Bluetooth speakers: Output power from 20 W135Headphones & speakers: Battery powered (portable)277Headphones & speakers: Output power from 50 W294Headphones & speakers: Output power from 20 W388
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