The WMS4500 D7 Wireless Vocal Microphone Set from AKG contains the SR4500 Receiver and the HT4500 Handheld Transmitter coupled with the D7 WL1 Microphone Capsule. It is an all-purpose wireless vocal set for rehearsals, stage, broadcast and more.
The HT4500 is a professional wireless handheld microphone transmitter. It has an RF output power of up to 50mW for maximum resistance to interference and dropouts. The transmitter is specifically designed to be used with the included SR4500 receiver. The system operates in a 30MHz wide UHF band and each frequency preset provides up to 19 intermodulation-free channels. The maximum number of selectable frequencies is 1200. Using several frequency bands allows you to operate as many as 70 channels simultaneously.
In this package, the HT4500 comes coupled with the D7 WL1 capsule, which is the same capsule from the AKG D7 wired handheld mic. The D7 WL1 is designed to accurately capture vocals for lectures, performances, rehearsals and more. The integrated high-pass filter is designed to eliminate handling noise and the humbucking coil helps reduce unwanted hum. There is also a metal dust filter, designed to protect the capsule from contamination that could potentially change the sound. The dual thickness AKG "Varimotion" diaphragm is intended to deliver accurate response in all frequency ranges. Also, the diaphragm is laminated to dampen high resonance peaks in the frequency response. This, in combination with the tight supercardioid polar pattern, help the microphone achieve maximum gain before feedback.
The SR4500 is a true diversity UHF receiver that is designed to provide maximum ease of use and a wide range of functions. A large, backlit color display and a jog wheel are in place to make the SR4500 easy to use, and a programmable LED ring indicates important system parameters at a glance. The SR4500's transmitter battery life readout is designed for accuracy, which is especially useful in live sound applications. The SR4500 receives a pilot tone from the transmitter which contains status data including the remaining battery capacity. The pilot tone decoder also allows the detection and display of other important information including the current position of the transmitter's MUTE switch. The SR4500 also features Auto Setup and Environment Scan functions which automatically analyze the local RF environment, find usable frequency groups, and set frequencies. The optional HUB4000 Q integrates the SR4500 into the HiQnet audio networking system.