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
Great price
on December 26, 2025
Posted by: Ponce
Gender:Male
The sound is excellent Great quality Great price
Written by a customer while visiting harmankardon.nl
Customer Rating
2
Unable to connect 2 speakers together
on December 27, 2025
Posted by: Tv Bob
from Midwest
Gender:Female
I bought 2 of the Onyx Studio 8 speakers. I wanted to connect them to my TV. I can connect 1 but not the other. I read online how to connect the 2 speakers together but it’s only worked 1 time. Unable to find any real documentation from Harmon Kardon on how to connect multiple speakers, however they do advertise the functionality. Very disappointing! Sound from 1 speaker is amazing, I only wish I could reliably connect 2 speakers.
No, I would not recommend this to a friend.
Response from harmankardon.nlBy Customer Support, December 30, 2025
Thanks for your feedback. The wireless connect feature of our HK Onyx Studio speakers is designed primarily for use with mobile devices and tablets. While you can attempt to connect it to your TV, please note that you may experience delays or lip-sync issues due to the inherent latency that a Bluetooth connection encounters.
To connect two Onyx Studio 8 speakers, power them on, connect one speaker to your TV, and then press and hold the Bluetooth buttons on both speakers for 5 seconds. You will hear a notification sound when they are connected. If the connection does not work, try pairing them with your phone or tablet to replicate the issue. If you encounter problems with your phone or tablet as well, please contact us directly for further assistance at this link: https://support.jbl.com/us/en/#contact.
To connect two Onyx Studio 8 speakers, power them on, connect one speaker to your TV, and then press and hold the Bluetooth buttons on both speakers for 5 seconds. You will hear a notification sound when they are connected. If the connection does not work, try pairing them with your phone or tablet to replicate the issue. If you encounter problems with your phone or tablet as well, please contact us directly for further assistance at this link: https://support.jbl.com/us/en/#contact.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Best bang for your buck!
on January 7, 2026
Posted by: Gbab
Gender:Male
This is my second Onyx Studio. The last one I purchased nearly ten years ago and still sounds as great as the day I bought it. Thank you for making a high quality product at an affordable price!
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl
Customer Rating
4
Great sound hear me out before
on January 17, 2026
Posted by: Bintory
Gender:Male
I purchased to use with Roku TV , phone and sometimes outdoors. The lack of Roku TV to pair is not HK issue but definitely left me disappointed that HK don’t have Roku TV pairing with HK onyx studio9 with NO mic( pro or con)
I must admit the product is well built and clear sound notes will have an impact on you, with Pairing and ease of use with App is seamless.
I tried to cast on Roku thru Iph and send sound thru my phone thru HK( with Bluetooth)that didnt work either, unfortunately sound came only thru TV speakers and not HK. To conserve battery it keeps going to sleep, and needs a walk to speaker to wake up and to play your fav channel or genre.
I must admit the product is well built and clear sound notes will have an impact on you, with Pairing and ease of use with App is seamless.
I tried to cast on Roku thru Iph and send sound thru my phone thru HK( with Bluetooth)that didnt work either, unfortunately sound came only thru TV speakers and not HK. To conserve battery it keeps going to sleep, and needs a walk to speaker to wake up and to play your fav channel or genre.
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Great sound!
on February 1, 2026
Posted by: Yitowen
I bought it a month ago. I’m so happy with this speakers, makes my days are better.
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Solid Speaker A+
on February 3, 2026
Posted by: Quantum Jeff
from Toledo, OH
Gender:Male
Bought mine for Christmas! Tremendous value. Great sound. Good looking speaker. Very happy here!
I would recommend this to a friend!
Written by a customer while visiting harmankardon.nl
Customer Rating
3
Studio 8
on February 20, 2026
Posted by: Catalyst
from California
Gender:Female
I like the sound when it works, however, sometimes the signal cuts out and it becomes weird and glitchy
I would recommend this to a friend!
Response from harmankardon.nlBy Customer Support, February 22, 2026
Thanks for your feedback. Bluetooth will perform well for up to 30 feet. However, walls, obstacles, and other wireless devices can impede that 30-foot range. If it works well at 10 feet or less, it is likely that there is something interfering with your wireless Bluetooth signal, causing these dropouts. Here are some troubleshooting steps that might help isolate the issue with your Harman Kardon Onyx Studio 8. Sometimes a Bluetooth connection can become corrupt, try to unpair and re-pair your Bluetooth connection. Next is reset, press and hold the Volume + and Bluetooth buttons simultaneously for more than 5 seconds, until the speaker powers off. You may need to 'forget' the speaker in Bluetooth settings on your phone/tablet in order to pair it again. If the issue remains, please contact us here: https://support.jbl.com/us/en/#contact
Written by a customer while visiting harmankardon.nl