| ▪ Built-in power sequencing for multiple black maximum amplifier installations | 
                | ▪ Pluggable screw terminals for sequencing wiring | 
                | ▪ Rear-panel power sequencing status indicator | 
                | ▪ Overload, short circuit and thermal protection circuits | 
                | ▪ Input signal channel link switch | 
                | ▪ DC and 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 | 
                | ▪ Dual 70 VAC output amplifier channels | 
                | ▪ 3 power levels 300 W per channel for 70 VAC 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 screw terminals for input connections | 
                | ▪ Independent low cut filters (per channel) | 
                | ▪ Independent input sensitivity switches (per channel) |