This amplifier is a member of the newly introduced Ultra Series line of half rack amplifiers. All the amplifiers in this series have upgraded power and channel densities over their XTRA series predecessors yet retain professional grade THD+N and SNR figures, Energy Star qualification and power factor correction. Efficiency maximization was the cornerstone of this platform, which not only facilitated increased channel density but also eliminated the need for an empty rack space above the amplifier. This series includes low impedance, 70V and 100V and combo models. Other key features are <100ms wakeup time and less than 10W of standby power. The current Energy Star specification allows the standby timer to be disabled if standby power is less than 10W in amplifiers of this power class. As such, the timer is defeatable and the product remains within Energy Star standards.