AKG Acoustics C 4500 B-BC manual Cleaning, Standard Accessories, Optional Accessories

Adding Phantom Power to Balanced Input Stages

Input transformer with center tap (floating).

Input transformer with no center tap (floating).

Standard values for Rv or 2 x Rv:
V s	R v	2 x R v
12 V ±2 V	330 ohms	680 ohms
24 V ±2 V	680 ohms	1200 ohms
48 V ±4 V	3300 ohms	6800 ohms

In order to preserve symmetry, use 2 x Rv resistors with a maximum toler- ance of 0.5% only.

If the amplifier inputs are single-ended (grounded) or have no input trans- formers, wire either capacitors or optional transformers into the audio lines to prevent any current leakage into the input stage.

Adding Phantom Power to Unbalanced Amplifier Inputs

Cleaning

To clean the metal surfaces, use methylated spirits or alcohol. We recom- mend to wash the windscreen in a mild detergent solution. As soon as it is dry, the windscreen will be ready for use again.

Standard Accessories

H 100	shock mount
W 4000	foam windscreen

Optional Accessories

B 18 battery power supply

MK 9/10 10-m audio cable with 3-pin XLR connectors N 62 E AC power supply for two microphones

N 66 E AC power supply for six microphones

PF 80 studio pop filter

ST 102 A floor stand

ST 200 heavy floor stand

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