CA series professional amplifiers are designed strictly abide by the Crest design philosophy.It is widely used for touring performance and fixed installation.The front board has 20sections precision level meter dispaly each channel signal transient state and peak.There is internal TourClass protection device,it mainly including ACL,IGM,AutoRamp and other touring protect indication.                                                                                                

ACL(Active Clip Limiting)dynamic peak clipping function prevent square wave impact into the speaker,actually it is the full frequency band protection.Every time open or restart the amplifier,AutoRamp attenuate automatically to protect the power amplifier.IGM(Instantaneous Gain Modulation)to ensure the amplifier can free up to 2 Ω load.Other protections including Overheating protection,DC protection,Short circuit protection.Surge protection and Switch transient protection.