The QSC CX404 4-channel Professional Power Amplifier give you four channels in only two rack spaces, without compromising on power. Choose from three models, a direct 70 volt model and two low impedance versions. Each model is equipped with exclusive QSC PowerLight switching power ...The QSC CX404 4-channel Professional Power Amplifier give you four channels in only two rack spaces, without compromising on power.
Choose from three models, a direct 70 volt model and two low impedance versions. Each model is equipped with exclusive QSC PowerLight switching power supply technology to virtually eliminate noise and hum. With high-output power, versatile loading options, high-thermal capacity and unmatched reliability, the CX Series is the perfect solution to any permanently installed sound system.