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Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker - Black (HKOS4BLKAM) - Picture 1 of 3

Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker - Black (HKOS4BLKAM)

4.77990 product ratings

luisfeluza0 (4)

Price:

$150.00

Returns:

No returns, but backed by eBay Money back guaranteeeBay Money back guarantee.

Condition:

Used

Great bass sounding booming studio speaker. Sold Out everywhere. Works perfect has power and control buttons on top of speaker above handle. Comes with charger OBO Introducing the Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker in Black (HKOS4BLKAM). This speaker is perfect for those who want to experience high-quality sound while on-the-go. It is compatible with Apple, Samsung, Sony, Android, and universal devices. With a 3,000 mAh battery capacity, this round-shaped speaker can last for hours without needing to be charged. It provides wireless connectivity through Bluetooth and USB. The speaker has an RMS power of 60W and weighs 4.5lbs. It comes in a sleek black color and is great for use at home, in the office, or even while traveling.

About this product

Product Identifiers

Brand
Harman Kardon
MPN
HKOS4BLKAM
UPC
0028292280467
Model
Harman Kardon Onyx Studio 4
eBay Product ID (ePID)
12031965960

Product Key Features

Compatible Brand
For Apple, For Samsung, For Sony, For Android
Color
Black
Battery Capacity
3.000 mAh
Connectivity
Wireless, Bluetooth, USB
RMS Power
60 W
Shape
Round
Compatible Model
Universal
Type
Portable Speaker System

Dimensions

Item Weight
4.5lbs.

4.8

4.8 out of 5 stars based on 990 product ratings

990 product ratings

865 users rated this 5 out of 5 stars
70 users rated this 4 out of 5 stars
25 users rated this 3 out of 5 stars
16 users rated this 2 out of 5 stars
14 users rated this 1 out of 5 stars

Well designed

Good value

Most relevant reviews

See all 791 reviews

5 out of 5 stars
by mascott10765Mar 27, 2018
Top favorable review
Best bluetooth speaker on the market!
This speaker if completely awesome! The sound quality is outstanding. Very solid bass but not overpowering. High are crisp and clear. I am going from the Onyx 1 to the 4. I didn't think the sound quality could get any better but I was wrong! I like the new features too like being able to connect more than one speaker, being able to unplug the power adapter and the speaker continues to play. The sound is better too on battery power. The original dropped down quite a bit when not plugged in. The 4 does this too but not nearly as much. If this thing was made by Bose it would cost over $500 on a black Friday deal! It blows any of the Bose Bluetooth speakers away and I know because I've had a few of them. It will rattle your windows! Very good speaker! Harman Kardon makes very good products that are priced much better than the overpriced Bose stuff. Read full review
Verified purchase: Yes | Condition: New
1 out of 5 stars
by c.kringleJul 26, 2017
Top critical review
Sounded Good for a Month.
My brother had one of these and it sounded great and then one day he blew the bass. I bought one and took extra good care of it and in a little over a month the same thing happened. I never turned it up over 50% and it has an automatic volume adjustment where it turns your iPhone down before the music starts so it doesn't damage the speaker. One day when I plugged in my phone it clipped out for a second and then adjusted. since then the bass rattles. Beware.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by tolas34Nov 13, 2022
Best in Class / Kick-butt
Talk about the perfect size design and sound quality using the most awesome Bluetooth portable speakers I've ever listened to given the size and configuration crossovers crystal clear good solid bottom then I don't know Ace actually vibrate the floor. For the speaker studio 4 model that's the only drawback is they can't take a lot of power sound best when you're pushing baby five 10 months through but boosters don't seem to work very well I am boosters that is they decorate the quality and Fidelity of the sound. Any other drawback is if you're running more than one speaker which I like to do although the pamphlet and probably expect so you can run up to 100 of these things tied together it's very difficult to get the two speakers to link the Bluetooth and then the rolling stereo so I can imagine it must be really difficult to being more than two speakers drive together. But once you get past that they are totally awesome I recommend them to everyone and anyone who has good taste in music and an above average sensitivity to tone (able to hear differences between, lows, midrange & highs)!Read full review
Verified purchase: Yes | Condition: New
5 out of 5 stars
by railroadsonpara...Nov 04, 2022
You cannot beat direct delivery from the factory.
The new red indication light for low battery is an improvement from the original design. I continue to be mystified about when it is charging. If the AC from the wall is actually charging when the unit is in use I can only guess. The first design had a code of slow and fast multiple flashing lights from the power button. Maybe this does, I can't tell. I plug it into the wall, go to bed and when I get up the power button is not flashing, it is an uninterrupted illumination indicating the unit is still on, so don't go on vacation with the unit plugged into the wall and make sure you unplug it before you go to work. It does not shut down after charging.
Verified purchase: Yes | Condition: New
5 out of 5 stars
by temeshe0Sep 27, 2019
One of the best!
Impeccable sound quality from something so small. The bass really hits like bass should, the mesh screen is actually removable and I personally find the device to sound and not to mention look sooo much better without the screen as the high notes are much more pronounced and the sound carries much further. It’s truly one of the greatest I ever tried. Bose has absolutely no comparison in quality and performance! At a 599 retail it’s quite a bang for the buck. And for the unimaginable 199.99 and free ship. I would consider this deal to be mind blowing, much like the sound that comes from the device. Everything about this speaker is just amazing! I will definitely get more of these to try the stereo pairing abilities
Product Reviews Images
Verified purchase: Yes | Condition: Refurbished

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Harman Kardon Onyx Studio 4 Portable Bluetooth Speaker - Black (HKOS4BLKAM)

About this product

Product Identifiers

Product Key Features

Dimensions

All listings for this product

Ratings and Reviews

Most relevant reviews

Best bluetooth speaker on the market!

Sounded Good for a Month.

Best in Class / Kick-butt

You cannot beat direct delivery from the factory.

One of the best!

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