Harman Kardon Onyx Studio 5chat_bubble_outlineFrom real comments

The bass is the star of the show. Multiple owners describe the Onyx Studio 5's bass as surprisingly powerful for its size, with one calling it 'the bass king' and another saying the amount of bass from such a small speaker is 'scary'. Reviewers note it sounds bigger and fuller than expected, and one compares it favorably to a competing speaker despite that rival having louder overall output and better battery life. However, a few caution that pushing bass or volume too high can blow the speaker.

Stereo pairing works but requires a specific process each time. Users share detailed steps for linking two Onyx Studio 5 (or 5/6) units into true wireless stereo via a long button press, noting a high success rate. However, questions arise about whether stereo mode persists after powering off, with users confirming the pairing steps must be repeated. Some also ask whether buying a second unit is worth it just for the stereo upgrade, given the already-strong bass from a single speaker.

Battery and connectivity problems frustrate a notable share of owners. Complaints include batteries draining fully while idle for two weeks, units failing to charge at all, and battery life falling far short of the advertised 8 hours, sometimes lasting only 2-5 hours. Others report Bluetooth pairing failures with Android phones and laptops, forcing reliance on the aux cord. Some units develop buzzing tweeters, crackling, popping sounds, or stop working after only a handful of uses, pointing to durability concerns.