Q: What is 60 dB super audio circuit?

A: 60dB super audio circuit installed in Alpha K1 and K3 model are able to provide clear voice quality to people who is far from 2 meters of the microphone of the cameras.    

More : Legacy cameras with audio circuit nowadays are normally obsolete because they are not able to not only appropriately gain the voice that people would like to hear but also filter out the unnecessary noise. MINTRON's proprietary voice circuit can amplify the weak voice from a condenser microphone and bring it up for 1,000,000 time or 60dB louder, which is in terms of energy.  Therefore, a very vivid sound will be able to be recorded by recording machines and heard by the security who is far from the speakers.