Sound Test of preamp for two microphones to delay and two-band EQ Howdy friends! we present a preamplifier with two microphone inputs, EQ, reverb and delay. this preamp is ideal for use with video jukebox with karaoke plug in electric guitar and a microphone This is the control of low frequencies And this is the control of high frequencies. The opaque back And increase the high frequencies These are the volume controls And here is the stage of reverb and delay Close the delay completely Listen to the shorter effect This control handles time, you can shorten even more We increase the time If you want may change these potentiometers, to give a little more time. Or get the speed you want They can use from 10K to 100K potentiometers This is the taste of each person Here we close this purpose, we have completely closed the effect And we rise to the point that we seem ideal There pleasant listening eg We hope this circuit will be everyone’s taste. You will find it in your website, construyasuvideorockola.com Greetings to all.