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The Harman Kardon Onyx Studio 9 is a sleek, portable Bluetooth speaker featuring 50W stereo output, 8-hour rechargeable battery, and smart self-tuning technology. It supports simultaneous connection of two devices, wireless pairing of two speakers for enhanced stereo sound, and includes a USB charging port to power your mobile devices on the go. Designed with a durable metal enclosure and a built-in handle made from 90% recycled aluminum, it combines premium audio performance with eco-conscious portability.

| ASIN | B0DMHLTDBX |
| Additional Features | Built-In Powerbank, Lightweight, Multi Room Audio, Portable, USB Port |
| Antenna Location | For Smartphones or Tablets, For Computers, For Televisions |
| Audio Driver Size | 13 Centimeters |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Stereo |
| Battery Average Life | 8 Hours |
| Best Sellers Rank | #209 in Portable Bluetooth Speakers #1,919 in MP3 & MP4 Player Accessories |
| Brand | Harman Kardon |
| Built-In Media | 1 x Harman Kardon Onyx Studio 9, Power Cable, Quick Start Guide, Safety Instructions, Warranty Card |
| Color | Black |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet |
| Connectivity Protocol | Bluetooth, USB |
| Connectivity Technology | Bluetooth, USB |
| Control Method | App |
| Customer Reviews | 4.7 out of 5 stars 399 Reviews |
| Enclosure Material | Metal |
| Frequency Response | 20000 KHz |
| Is Waterproof | False |
| Item Dimensions D x W x H | 5.12"D x 11.39"W x 11.32"H |
| Item Weight | 9.41 Pounds |
| MP3 player | No |
| Manufacturer | Harman Kardon |
| Model Name | HK Onyx Studio 9 |
| Model Number | HKOS9BLKAM |
| Mounting Type | Floor Standing |
| Number of Audio Channels | 3.0 |
| 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 | Home entertainment, Portable, Multi-room audio |
| UPC | 028292291104 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year manufacturers warranty |
| Warranty Type | Limited |
| Wireless Technology | Bluetooth |
D**K
Quality at its best!!
This is an excellent Bluetooth speaker. It adds so much more dimension to the sound. I haven’t used it outside yet, but I have it a friend’s house and if it’s as good as theirs, it’s amazing simple all the way through quality all the way through.
C**K
Easy to use.
Excellent speaker. Great sound and can be heard throughout the house.
E**E
So good. Buy 2
Love these speakers. Finally a design that will not break as easily as the previous versions. The sound is incredibly crisp and they’ve got a decent amount of womp for portables. I listen to so many types of music but def appreciate that these are capable of supporting music with highly produced layers, and really deep bass. Love linking them to listen to music, podcasts, books, while I’m walking thru my place and don’t feel like wearing headphones. White noise/ASMR sounds are amazing on these things. Batteries last awhile. Sometimes getting them to link is a little annoying. But overall I think these things are well worth the money.
G**O
Let’s party with the best surround speaker
Great quality!! The sound is amazing and Bluetooth
C**L
AWESOME SOUND!
I ordered this for my daughter who has been asking for it forever. She is so pleased with it. When I went for a visit, we played cards and listened to music. The sound is awesome! It was more than I wanted to pay but boy was it worth it! Now, I want one too!
L**.
Sound Amazing
This was the best sounding speaker I've every heard. I enjoy my speaker & my family & friends end up purchasing one also. I love that its light weight & can be easily carried and can pair with your Bluetooth,size is perfect for me & can transported anywhere. Make sure you fully charge if you are planning on more than an hour usage. Keep you cord on hand for charging . Love this speaker! I was satisfied with this purchase.
W**E
LOVE this speaker
I've owned a BOSE Portable Smart Speaker for years. In fact, all of my home speakers (and even my car) are BOSE. All of them work well and sound great, EXCEPT for the Portable Smart Speaker. That thing has been nothing but problems. I decided to replace it and upgrade a bit in the process. I chose this Harmon Kardon speaker after doing much research, and it is a world away from the BOSE in terms of sound quality. And the HK is even cheaper than the BOSE on Amazon currently ($400 vs $239). This is a no brainer for me. Crisp highs, and a deceptively rich bass sound for how small the unit is. I love that it plays a series of tones on power up to balance the sound according to the room. The app is easy to use and works well (I do wish it recognized the speaker a bit faster on startup). The unit does not have Alexa built in, but I really don't care. I use the service minimally and there's always another device nearby that has it. I use this speaker mostly in the kitchen while I cook (and I cook daily) and it fills the room with sound. I can dance around while I measure out spices and heat up oils. All in all, an excellent product!
S**N
Best speaker I've owned yet
I love Harman Kardon speakers. My last one broke and I decided to finally suck it up & buy another one. Yeah it's expensive, but honestly these certain speakers are expensive for a reason. The bass & overall sound on it is phenomenal. You don't even need to crank it all the way up to be able to hear it from across the house, but then again my house is pretty empty. The battery life is wonderful. I can play it for hours & hours before it's ready to charge again & even when it does need charging it makes a clear sound to warn you rather than just shuttinf off completely. Connecting to my phone is super easy.
G**.
Excelente Producto
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.
A**S
Good asset
Really good condition, sound quality’s amazing and I love the design and how elevates every room or place u put it.
E**A
The sound is good
The sound is good
G**N
Buena bocina
Bonito diseño y muy buen sonido
C**S
onyx 9
It is amazing, lots of power and the sound and power is great
Trustpilot
2 months ago
1 day ago