Creative Sound BlasterX G5 SB1700 User Manual page 11

Step 4: Connecting to Headsets / Microphones / Speakers
Connecting to headsets
CAUTION:
Set the appropriate gain level (L or H) before connecting your headset to the Headset jack to prevent
damaging your headset.
Low: For headset with low impedance (32 ~ 150 ohms). Gain: up to 5 dB.
High: For headset with high impedance (150 ~ 600 ohms). Gain: up to 15 dB.
OR
Note:
* Voice input from a headset with 4-pole plug is disabled if an external microphone is connected
to the Mic In jack.
Sound BlasterX G5 – Setting Up Your Audio Device 11