• Dual 70V amplifier channels • 600W per channel for 70V speaker systems • Low noise, low distortion, and high slew rate • High efficiency class H amplifier design • Transformerless direct drive outputs • Electronically balanced high-impedance inputs • Pluggable terminal strips for input connections • Independent low-cut filters on each input • Built-in power sequencing for multiple Black Max amplifier installations • Pluggable terminal strip for sequencing wiring • Rear-mounted power sequencing status indicator • DC, overload, short circuit, and thermal protection circuits • Clip limiting circuits for speaker protection • Power-saving sleep mode for intermittent use applications • Status, Signal, and Limit indicators • Back-Slope AC voltage stabilization for dependable performance over varying AC line voltages • Heavy-gauge steel chassis with cast aluminum front panel • Rear-mounted volume controls • Mounts in 2 rack spaces (3-1/2") directly stackable without need for extra space above or below • 2 independent, continuously variable, cooling fans for dependable and quiet operation • Easily removable front fan grilles with filters