Condenser microphones - except for the battery powered C 1000 S - require an operating voltage that needs to be fed through the microphone cable (phantom powering). This can be done in several ways: 1. From a mixer with built-in phantom power (9 to 52 V). 2. By modifying the mixer or tape recorder to provide phantom power: find a regulated DC voltage between 9 and 52 V in the power supply. All modern AKG condenser microphones accept any voltage within this range. Wire the input(s) as shown. Current consumption of the phantom circuit is negligible (about 1 mA per mic). Replace the input jacks with XLR sockets if possible. While stereo jacks will work as well, there may be a risk of mistaking them for send/returns or the like. Use the following standard resistances (IEC 26815) for Rv: Voltage Resistance 12 V (±2 V) 680 ohms +10% 24 V (±4 V) 1.2 kohms ±10% 48 V (±4 V) 6.8 kohms ±10% Make sure to use resistor pairs whose combined actual value is within 0.4 % of the speci.ed value! 3. By inserting N 62 E or N 66 E AC power supplies between the mixer and microphones. 4. By using the B 18 battery power supply which is ideal for outdoor recording.
