Product Detail
After the legendary success of the C544 and C555, AKG presents the next - gen head - worn microphone, the HC644 MD. This high - performance condenser microphone is a top - notch choice for corporate presenters and also great for sports like aerobics. Many mid - to - low - priced wireless systems use 2.4 GHz technology, which can cause interference with microphones. But the HC644 MD is well - protected. The new version features a smaller, more sensitive capsule, excellent RF shielding, a sweat - resistant design, and compatibility with all major wireless systems on the market. Key features include studio - quality sound, high RF rejection, a moisture - resistant build, a uniform polar pattern, and a microdot adapter. Technical specs: It's a back - electret condenser with a cardioid polar pattern. Sensitivity at 1m is 20 mV/Pa (9V/18kOhms), audio frequency bandwidth is 100 - 15000 Hz (+/-3dB), and more.
Using the AKG HC644 MD head - worn microphone is easy. First, make sure it's properly attached to your head for a secure fit. Connect it to your wireless system using the 2 - pin microdot connector. Check the power supply, as it operates at 9V (2V - 10V). When using it, keep in mind that it has high RF rejection, so you don't have to worry much about interference from 2.4 GHz wireless systems. For best results, use it in a temperature range of - 20°C to +60°C. When not in use, store it in a dry place. To clean it, use a soft, dry cloth. Avoid getting it wet, but since it has a moisture - resistant design, a little sweat won't damage it. If you have any issues, check the connections and the power settings first.
