Simple Solid State Relay For Low Wattage Class D Power Amplifier

For months I'm playing a lot with this tiny amplifier. It is 12 volt capable, low watt, yet ultra efficient power amplifier that very suitable for car audio application. It producing high quality audio with flea watt that most any mid-range or full-range speakers can accept. Previously, this auto power-on amplifier is controlled by using a mechanical relay. It is okay and not any single problem occurs. But to make it less mechanical things, I built the simple solid state relay in it.

The Reason (Not) To Upgrade Your Car Audio System

While for most of home audio people really know well that the car is the worst place for audio, thus listening music in car is unavoidable. The situation for my daily driving activity is about at least 2 hours minimum per day. Compare how much I spending time while listening music at home it quite similar. But when I am stuck in traffic jam, it can double the time. So, you will never want to accompany in the traffic with a bad audio system on car don't you?

How 3 Inch Subwoofer Perform? Meet The Tang Band W3-1876S

My previous post about buying the Vifa drivers from online store here, you will notice that I also bought several items including the mini sub-woofer. It is Tang Band W3-1876S, a 3 inch sub-woofer for about $34. How it's perform compare to larger diameter sub? I will find it out!