AKG HC644 MD

Overview

STAY SMART AND DRY
For presenters and sports

After many years of experience with AKG´s best sold head-worn microphones C544 and C555 it was time to use all the learnt facts and create a new generation. The output of this development is the brand new HC644 MD. It 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.

Key Features

Studio-quality sound
Flat frequency response for natural sound
High RF rejection
For safe performance even in RF sensitive environment
Highly moisture-resistant design
Reliable operation even in extensive use
Uniform polar pattern
Reduces feedback
Microdot adapter
Available adapters for most wireless systems

Specifications

General
Type	Back-electret condenser
Audio frequency bandwidth	20 to 20000 Hz
Equivalent noise level	34 dB-A
Sensitivity	20 mV/Pa
Max. SPL for 1 % THD	135 dB
Electrical impedance	200 Ohms
Recommended load impedance	2000 Ohms
Self noise	60 mW
Polar Patterns	Cardioid
Powering Interface
Voltage	1 to 10 V
Audio Output
Contacts	2-pin Microdot
Dimensions / Weight
Length	200 mm
Width	130 mm
Height	35 mm
Net Weight	30 g