My implementation of the filter circuit was a botch job but it works! This preamp was way below the noise floor of my Dayton DSP/300B tweeter amp before I added the filter......but it does sound sweeter/smoother with the filter. Now about that box.....
Eh....I'll make it work....I forgot to order stand offs though. I'm thinking about that push button on/off switch with the neon bulb in it and an IEC to get power in it, should round it off nicely
Done-ish. Didn't do the grounds yet. My Rega arm doesn't have a separate ground wire anyways. I used an IEC connector for power and an old Radio Shack neon indicator push button switch