The green bars represent a range of ±1 dB from the amplifier's EIA 1 kHz, 1% THD power rating. A loudspeaker that falls on the left end of the bar would receive 1 dB more power than its program power rating. A loudspeaker falling on the right end of the bar would receive 1 dB less power. As a practical matter, a 1 dB change in acoustic output is imperceptible to most listeners.

** Stereo operation with bridge mono mode requires two amplifiers.

DISCLAIMER: This application should only be used as a guideline for selecting your amplifiers. When powering loudspeakers, you should always use cautious and safe practices to prevent damage. QSC is not responsible for any damage or adverse effects to your loudspeakers or any other equipment. Loudspeaker data is taken from manufacturers' published specifications; QSC cannot verify that this represents the actual power handling of your loudspeakers.