Description
Following up on the legendary performance of the C544 and C555, AKG has created the next generation of head-worn microphone, the new HC644 MD. This high-performance head-worn condenser microphone is the perfect tool for presenters in the corporate market but also ideal for sport applications like aerobics. More and more wireless systems in the low to mid-price range are based on 2.4 GHz technology causing nasty interference with microphones. The new HC644 MD is well protected against those problems. The main improvements of the new version are a smaller capsule design with a higher sensitivity, an exceptional RF shielding, a sweat-resistant design and the ability to fit to all major wireless systems on the market.
General Specifications
TypeBack-electret condenser
Polar PatternCardioid
Sensitivity (1m)20 mV/Pa (9V/18kOhms)
Audio frequency bandwidth100 – 15000 Hz (+/-3dB)
Electrical impedance200 Ohms
Recommended load impedance2000 Ohms
Equivalent noise level34 dBA
Signal to Noise (1Pa)60 dBA
Max. SPL for 1 % THD135 dB
Temperature range-20°C to +60°C (14°F – 140°F)
Dimensions
Length200 mm
Width130 mm
Height35 mm
Net Weight30 g (including cable)
Audio Output
Connector2-pin Microdot
Powering Interface
Operation voltage9V (2V – 10V)
Recommended serial impedance18kOhms (2kOhms – 18kOhms)
Current Consumption≤ 500μA RL=2.2Kohms Vs=2.0VDC
Application
Sports / FitnessYes
Assisted ListeningYes
Sound ReinforcementYes
PresentationYes
RetailYes
Device
Headset MicrophoneYes
