HC644 MD Head-Worn Microphone
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.
HC644 MD Head-Worn Microphone
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.
Product Details
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
Type: Back-electret condenser
Polar Pattern: Cardioid
Sensitivity (1m): 20 mV/Pa (9V/18kOhms)
Audio frequency bandwidth: 100 – 15000 Hz (+/-3dB)
Electrical impedance: 200 Ohms
Recommended load impedance: 2000 Ohms
Equivalent noise level: 34 dBA
Signal to Noise (1Pa): 60 dBA
Max. SPL for 1 % THD: 135 dB
Temperature range: -20°C to +60°C (14°F – 140°F)
Dimensions
Length: 200 mm
Width: 130 mm
Height: 35 mm
Net Weight: 30 g (including cable)
Audio Output
Connector: 2-pin Microdot
Powering Interface
Operation voltage: 9V (2V – 10V)
Recommended serial impedance: 18kOhms (2kOhms – 18kOhms)
Current Consumption: ≤ 500μA RL=2.2Kohms Vs=2.0VDC
Application
Sports / Fitness: Yes
Assisted Listening: Yes
Sound Reinforcement: Yes
Presentation: Yes
Retail: Yes
