The K13117 mic preamp is a pure class A original design from Darius Kubarth. It is designed around 2 transformers. Big warm low end.

Images:

Features:

• 25-69 dB gain
• Low noise
• Need an external polarity switch

Purchasing

Boards are to be purchased from [silent:arts] in his white market thread.

You need to source your own case.

Pricing

• K13117 PCB – 1 channel: 17,50€
• N13117 PSU PCB: 17,50€
• Haufe RK494/3 used but tested Output transformer: 32,50€
• MIO-rev01 (slow start phantom power / PAD / polarity switch): 5€
• Prices without VAT

External Links

• GroupDIY build thread: http://groupdiy.com/index.php?topic=50559.0
• [silent:arts] white market: http://groupdiy.com/index.php?topic=39570.0