Harman Kardon Onyx Studio 9 portable stereo Bluetooth speaker:
Audio & Performance
Rated Output Power: 50W RMS
Transducers: 1 x 120mm woofer, 3 x 20mm tweeters
Frequency Response: 50Hz – 20kHz (-6dB)
Signal-to-Noise Ratio: > 80dB
Key Sound Features: Constant Sound Field technology, automatic self-tuning, and a 7-band EQ via the companion app.
Connectivity
Bluetooth Version: 5.3 (supporting A2DP 1.4, AVRCP 1.6, and multi-point connection for two devices)
Multi-Speaker Connection: Auracast support for linking multiple compatible speakers
App Support: Harman Kardon One App
Ports: Auxiliary input and USB-C port (supports device charging/power bank output)