Used Lectrosonics Lavalier Sets for Sale

As you can see in the pictures, we have several Lectrosonics Lavalier sets/models to choose from. Below is some info on just two of them…

UM195 BELT-PACK TRANSMITTER. Learn more at: https://www.lectrosonics.com/US/phocadownload/um195man.pdf 
The UM195 transmitters are comprised of a number of functional sub-systems as shown in the block diagram below. The 195 system uses 75kHz wide deviation for an extremely high signal to noise ratio. The transmitter circuits are all regulated to allow full output power from the beginning (9 Volts) to the end (7 Volts) of battery life. The oscillator crystal is shock mounted to provide ruggedness. The input amplifier uses a Motorola 33078 op amp for ultra low noise operation. It is gain controlled with a wide range input compressor which cleanly limits input signal peaks over 40dB above full modulation. Traditionally, compandors have been a source of distortion in wireless microphone systems. The basic problem with conventional systems is that the attack and decay times are always a compromise. If the time constants are fast, high frequency transients will not be distorted, but this will cause low frequency distortion. If the time constants are slower, low frequency audio distortion will be low, but high frequency transients will then be distorted. The 195 system introduces an entirely new approach to solving this basic problem, called “dual-band companding.” There are actually two separate compandors in the 195 system, one for high frequencies and one for low frequencies. A crossover network separates the frequency bands at 1kHz with a 6dB per octave slope, followed by separate high and low frequency compandors. The attack and release times in the high frequency compandor are fast enough to keep high frequency transient distortion at a low level, and the low frequency compandor uses slower time constants, reducing low frequency distortion to well below that of a conventional compandor.

UCR195D DIVERSITY UHF RECEIVER. Learn more at https://www.lectrosonics.com/phocadownload/c195dman.pdf
The 195 Series system was designed for the most critical studio and sound reinforcement applications. The system design represents a significant step forward in wireless microphone technology. Every stage in the entire audio/radio chain from transmitter input to re ceiver output was evaluated and analyzed to produce the operating parameters and performance requirements for this entirely new design. The audio system provides the lowest distortion and best signal to noise ratio of any wireless mic system ever built. The RF link is extremely stable, providing the highest reliability and freedom from drop outs and interference. The UCR195D employs the most advanced circuit and mechanical design ever applied to a wireless microphone receiver. The audio processing is the finest quality system ever developed for wireless microphone systems. The UCR195D re-defines the state of the art in high end wireless microphone receivers. The entire radio/audio system was designed from a “cold start,” utilizing all that has been learned thus far. Many new types of IC’s and semi-conductors are available now that were only ideas a few years ago. The UCR195D design takes advantage of these new devices.