Warnings! The Mains Voltage Select switch (VAC Select) on the rear panel must be in the V position for AC power line voltages over 132 VAC. Connecting the power cord to AC power line voltages over 132 VAC while the VAC Select switch is in the V position will damage the amplifier. Such damage is NOT covered under warranty. AC Voltage Select Switch Rear panel VAC Select switch location 2 Please read and follow the safety information below Do not remove the rear amplifier panel. There is a risk of electric shock. No user serviceable parts are inside. Please refer service issues to a qualified technician. Do not operate this device with an ungrounded mains power cable or a mains connection that is ungrounded. This may result in personal injury. Do not place open flames such as lighted candles on or near this device . Do not expose this device to water, rain or high humidity. Do no place objects filled with liquids, such as vases, on or near this device. This speaker requires adequate airflow to maintain proper cooling. Do not obstruct airflow around the speaker. Do not run the speaker upside down (mains power connector on top. Do not operate this device in ambient temperatures above CF. Over-temperature may cause device failure. Caution! This speaker is capable of producing sound pressure levels in excess of dB which may cause permanent hearing damage. Always verify that input signal levels are attenuated before powering on the speaker.