Dell OptiPlex 3240 All-In-One Owner's Manual

Audio specifications

Feature	Specification
Controller	Intel High Definition Audio with Waves MaxxVoice Pro
Speaker	single 4-ohms speakers in both the left and right speaker assembly (4 W average per channel)
Internal speaker amplifier	up to 7.6 W at 4-ohm per channel
Internal microphone support	dual digital microphone
Volume controls	Volume up/down buttons, program menus, and keyboard media-control keys WARNING: Excessive sound pressure from earphones or headphones can cause hearing damage or loss. Adjustment of the volume control as well as the equalizer to settings other than the center position may increase the earphones or headphones output voltage, and therefore the sound pressure level. The use of factors influencing the earphones or headphones output other than those specified by the manufacturer(e.g. operating system, equalizer software, firmware, driver, etc.) may increase the earphones or headphones output voltage and therefore the sound pressure level. The use of earphones or headphones other than those specified by the manufacturer may lead to heightened sound pressure level.