Harman JBL QUANTUM Stream - Volume and Gain Adjustment

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• Hold for 5 seconds to turn off RGB light on the ring LED. Hold the same button
for 5 seconds to turn it on again.
Ring LED color Meaning Microphone status
RGB lighting off, mute/unmute
indicator in red (30% brightness)
Muted
RGB lighting off, mute/unmute
indicator off
Unmuted
Volume/gain adjustment
× 1
+
To adjust the headphone and sidetone volume:
• Rotate the volume knob clockwise or counterclockwise.
 The side tone is off by default. You can enable sidetone in QuantumEngine
and then rotate the volume knob to adjust sidetone volume.
 The RGB light on the ring LED flashes in bright teal when the maximum volume
is reached. It flashes in dim teal when the minimum volume is reached.
To adjust the microphone gain:
• Press the volume knob, then rotate it clockwise or counterclockwise.
 The RGB light on the ring LED flashes in bright purple when the maximum
gain is reached. It flashes in dim purple when the minimum gain is reached.