Customer reviews from harmankardon.nl
Harman Kardon - Refurbished Excellent - Onyx Studio 8 Speaker, Black
Average customer rating
4.6
(159 Reviews)
Rating breakdown 159 reviews
5 Stars
127
4 Stars
13
3 Stars
9
2 Stars
5
1 Star
5
94%of customers recommend this product.
(
82 out of
87)
Customer Reviews for Harman Kardon - Refurbished Excellent - Onyx Studio 8 Speaker, Black
Customer Rating
5
I bought one then came back for a second.
on November 24, 2025
Posted by: hello1234
Loud, heavy bass, incredible price, gorgeous design.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
The best.
on December 27, 2025
Posted by: The Rick
from USA, PA
Gender:Male
I bought this to replace an older model and I wasn't disappointed! What great sound! Bone vibrating bass and a high end that is crisp and clear. There is nothing close to HK quality in this price range from any other company.
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl
Customer Rating
4
Amazing sound quality battery needs improvement
on June 16, 2023
Posted by: SweetDee in IT
from Philadelphia, PA
Gender:Female
This speaker is AMAZING sonically. It plays music with excellent elegant quality neck and neck with Bose and surpassing Sonos speakers, The Onyx 8 adjusts the sound based on placement and it radiates through an entire 2-story stone house.
The engineer in me has 2 suggestions
1.) Update the app and firmware to give a better battery indication, perhaps a percentage
2.) Allow the USB service port to be used as a charge or quick charge option 8 hours is a long time for a full charge.
otherwise, i have been through almost every JBL Charge option offered (2 thru 4) and this has been my new mobile solution. I like this product=.
The engineer in me has 2 suggestions
1.) Update the app and firmware to give a better battery indication, perhaps a percentage
2.) Allow the USB service port to be used as a charge or quick charge option 8 hours is a long time for a full charge.
otherwise, i have been through almost every JBL Charge option offered (2 thru 4) and this has been my new mobile solution. I like this product=.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Extremely beautiful
on July 21, 2024
Posted by: CAREMEK TECHNOLOGIES NIG
Gender:Male
Extremely beautiful and bass blasting sound. I'm enjoying te sound
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Just Buy it
on August 25, 2024
Posted by: Bordman
from Arizona
Gender:Male
Crazy sound you have to hear it to believe it. I want another one !!
Written by a customer while visiting harmankardon.nl
Customer Rating
5
HKOS8
on November 29, 2025
Posted by: Javihinojosa
Great portable speaker! The deep bass fills the room with sound and the speaker is great looking.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Great Purchased
on December 9, 2025
Posted by: AG72
Great speaker - sound quality is fantastic - connectivity between two speakers for an stereo sounds is pretty nice to have. Overall a great X-mas purchased. I highly recommend this product.
I haven't check the battery life overall yet - so no comment on that.
I haven't check the battery life overall yet - so no comment on that.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Great Speaker
on December 11, 2025
Posted by: JB730
from California
Gender:Male
Been wanting this speaker for a long time and I'm so glad I finally bought one, worth every penny!
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl