I wanted to try Bitcoin mining on FPGA just to see how hard it really is. I have to use some electricity for heating this time of year so I can just as well use some for Bitcoin mining. I have a Arrow SoCKIT development board. The board contains a Altera SoC which is a combination of a ARM processor and a FPGA. For this project the ARM processor will not be used.

To complete my 5.1 loudspeaker system I designed and built a center loudspeaker. To make it easier to place the loudspeaker I designed it relativly small using two 4 inch bass-midrange elements and a tweeter. A bigger loudspeaker was not needed since my subwoofer and main front speakers can handle the low frequencies. My center loudspeaker The loudspeaker elements I tried to find as similar elements to my other loudspeakers as possible.

This is my third loudspeaker design. I wanted a subwoofer to extend the low frequency response. I am not going to play very loud nor I do not want a big box, therefor I built a relatively small subwoofer using a 10″ element. My subwofer The loudspeaker element Peerless Resolution 10 is an element witch fits well into a reasonable box. I will not go into details about how I assembled the subwoofer here.