Customer Reviews for Harman Kardon - Onyx Studio 8 Speaker, Black
Customer Rating
2
Battery doesn’t last long
on May 24, 2026
Posted by: D Brah
from California
Gender:Female
The battery dies too quickly, and the Sound is okay
Response from harmankardon.nlBy Customer Support, May 26, 2026
Thanks for your feedback. The published playtime for our Onyx Studio 8 reflects the maximum battery life at low volume with no bass boost. Higher volume levels and bass‑heavy audio will naturally reduce battery performance. To check whether the battery is functioning properly, fully charge the speaker and play music at very low volume with no bass enhancement. If the playtime is close to the advertised specification, the battery is performing normally. If you have any questions, please contact us directly at: https://support.jbl.com/us/en/#contact"
Written by a customer while visiting harmankardon.nl
Customer Rating
5
Incredible sound
on May 30, 2026
Posted by: sans74
from New Bern, NC
Gender:Female
This speaker sounds so good! I already had one, so now I paired them together and the sound is amazing?
Written by a customer while visiting harmankardon.nl
Customer Rating
5
on June 2, 2026
Posted by: Just get it
from Prattville AL
Gender:Female
The sound is incredible. This is my second Harman speaker and I can truly say the sound is unmatched. This speaker right is the truth. So entirely happy with my purchase.
Written by a customer while visiting harmankardon.nl