Lectrosonics IS400 Digital Hybrid Wireless Instrument System

An Industry First
The Lectrosonics IS400 Digital Hybrid Wireless™ uses a proprietary algorithm to encode the digital audio information into an analog format which can be transmitted in a robust manner over an analog FM wireless link. At the receiver, the encoded signal is captured and a DSP recovers the original digital audio. This combination offers the superb audio quality of a pure digital system and the outstanding operating range of the finest FM wireless systems. The digital audio chain eliminates a compandor and its artifacts, and provides audio frequency response flat to 20 kHz. The RF link takes advantage of the spectral efficiency characteristics of an aggressively optimized UHF FM system.

Raising the Bar for Tone
The Lectrosonics IS400 sets a new standard for wireless instrument systems. Flat frequency response, low distortion and compandor-free operation provide the closest thing to using a high-quality, short instrument cable. The Lectrosonics IS400 reproduces the lowest fundamental from a 5-string bass (low B) at 32Hz up to the very highest overtones and harmonics.

Rugged and Ultra Portable
Both the transmitter and receiver of the Lectrosonics IS400 are all metal and provide 256 selectable frequencies in standard Lectrosonics frequency blocks. The input amplifier of the Lectrosonics IM transmitter uses an ultra low noise op-amp for quiet operation. *US Patent Pending

A 24-bit A-D converter digitizes the audio, and then filters supersonic audio above 21 kHz. The resulting signal is encoded with a proprietary algorithm to produce an analog data signal for RF transmission. The RF transmission is an optimized FM system with +/-75 kHz deviation for a high signal to noise ratio and a faithful representation of the original signal. The Lectrosonics IM transmitter is powered by a single 9VDC battery and provides greater than 50 mW output over the life of the battery for extended operating range and resistance to dropouts.