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Hi everyone, I am looking for a cheap/diy solution to power 2 neumann KM184 out of 9v batteries. The goal is to ste up a wireless ORTF couple. The couple is going to remain on stand, so I don't need a compact/superclean box, but I need a sound quality comparable to this : http://www.areitec.fr/areitec-pico48-phantom-power-adaptor-zaxcom-wireless-produit-395.html even though I can't afford an audio transformer. I have 2 lectrosonics Smqv transmitters to feed but according to Lectrosonics datas I can't draw sufficient current from it. I recently used one of those gadgets http://www.bhphotovideo.com/c/product/840641-REG/IK_Multimedia_IP_IRIG_PRE_IN_iRig_Pre_Microphone_Interface.html , sounded like ok I guess I could solder a TA5 plug instead of the 3,5mm jack. Someone ever tried ? For a complete diy solution, my first google prospections lead to that kind of things : http://www.geofex.com/circuits/+9_to_33.htm But I lack the advice of professional ears ! thanks in advance, Pierre