AB International Professional 8120A Mono dual Bi-Amp Power Amplifier 

Two Channel Amplifier for Bi-amp use.

Selectable Crossover Freq between 800hz and 1200hz.
500 Watts per channel into 8 Ohms.
800 Watts per channel into 4 Ohms.
1050 Watts per channel into 2 Ohms.

Type: Power Amplifier
Brand: AB Internatoinal
Model: Professional 8120A
Number of Channels: 2
Form Factor: Rack-Mountable
Country/Region of Manufacture: United States