... Ω2.8 distortion factor ,≤2%2.9 Output power amplification ,0~35W (load impedance 16Ω)3.0 ... integrated design concept with basic conversations, Noise resection, power amplifier, power circuit and protecting circuits etc in a phone,. ... a fault, workstation won't affect the entire system. This systems can be automatic gain control , ... and its quantity of the telephones in a system. 3.4 It is very easy to be ...