User's Manual
SMV Series
LECTROSONICS, INC.
2
Introduction
The SM Series variable power transmitters are the 
product of many years of engineering and experience in 
professional audio markets. The unique design provides 
several distinct features for professional applications:
•  Selectable output power to maximize battery life or 
operating range as needed
•  Superb, compandor-free audio quality
•  Ultra-lightweight, corrosion resistant housing
•  Water resistant seals for use in damp environments
•  Programmable compatibility modes for use with a 
wide variety of different receivers
The Digital Hybrid Wireless
®
 design (US Patent 
7,225,135) combines 24-bit digital audio with analog 
FM resulting in a system that has the same operating 
range as analog systems, the same spectral efficiency 
as analog systems, the same long battery life as analog 
systems, plus the excellent audio fidelity typical of pure 
digital systems.
The SM Series transmitters feature the unique servo 
bias input circuitry with a standard TA5M type input jack 
for use with electret lavaliere mics, dynamic mics, or 
line level signals. A water resistant control panel with 
LCD, membrane switches and multi-color LEDs make 
input gain adjustments, frequency and compatibility 
mode selection quick and accurate, without having to 
view the receiver. The battery compartment accepts 
AA lithium or rechargeable batteries. The housings are 
machined from solid aluminum blocks to provide an 
extremely lightweight and rugged package. A special 
non-corrosive finish resists salt water exposure and 
perspiration in extreme environments.










