2whldreams 0 Posted November 23, 2013 Greetings, Not understanding all the details involved, my question might be interpreted as how to get an orchestra from a ukulele. My security system is mfg. by Defender. Model #21101, eight cameras and a 1TB DVR. 1a. My question is in reference to sound, both volume and sensitivity. The DVR has just one input for one microphone and camera combination-only. The microphone I purchased from our good friends at Amazon is a VideoSecu (el cheapo) for >$8. The goal was to see if all the variables (DVR, wiring, connections, etc.) would even function. Works okay and wires into system. Unfortunately, with the volume on both the DVR and headphones at maximum, the volume is inadequate. Is there anyway to "juice" the volume with software and/or equalizer? 1b. The $8 microphone will do a respectable job of picking up the irritating sound of a car alarm chirp from a 40 foot distance. The lower (frequencies?) sound of the same vehicle at high idle is barely perceptible. Is there a specific type of microphone I need that will wire into the BNC (yellow) and female power jack camera wiring? 2. Someone gave a one word answer to a previous question about my wanting to add additional microphones (to the cameras) by using a "mixer". If this sounds advisable, could someone elaborate on a specific type of mixer. Thank you in advance for taking the time to read my post. Share this post Link to post Share on other sites