1.Pro power amplifier 2.High power amplifier 3.Professional stage amplifier 4.high damping, high level of protect function Pro power amplifier CA Series Features: ... and durable performance efficiently. Meanwhile, it modifies the traditional switching distortion of Class H, making the sound come out more ... its sufficient and powerful output capacity at 8 ohms, 4 ohms, and 2 ohms.CA, which has a large ...