Quested AP1550 2 Power Amplifier Quested AP1550-2 is a 2 channel class A/B 1550 watt per channel power amplifier that is capable of delivering exceptional sonic performance. The AP1550-2 is designed for powering passive monitors in studio settings such as recording studios or film production facilities. The AP1550-2 is fully rackmountable and takes just 2 [...]