Eden Microphone Preamplifier (4 Pack)

This is 4 channel pack of Eden Microphone Preamplifiers from Expat Audio. They are completed modules that only need to be hooked up. In fact, all they need are power, input, output and a gain setting resistor. They are assembled and tested here in Texas, USA. Performance It has flat THD+N at 30dB of gain as low as 0.003%, all the way to 30kHz (higher I believe - but the audio test kit isn't quite up to it). At 60dB of gain (max setting) the THD+N is still very impressive at 0.04%. (again, flat all the way!)    What's in the box? 4x Eden boards made and tested in Dallas, TX. What else do I need to buy? To make a complete mic pre system: Power Supply, Front End, Case, Pot and Switches. See users guide for details.   Documentation Users Guide: Available for download here: Expat Audio Eden Mic Pre PG2.0 Users Guide Floorplan: (used for drilling the holes in the right places in your case) available for download here: Eden System Footprints 4ch 1U Builders Presentation: Download PDF Kit l