LS3

About the LS3

The Audio Research LS-3 is a solid state preamplifier designed to deliver exceptional audio performance with advanced solid-state engineering. It features a differential JFET-based input stage that enhances signal integrity and reduces noise, followed by a bipolar transistor-based voltage amplifier for robust performance. The Class-A output stage provides a warm and dynamic sound. The LS-3 employs a dual mono architecture with separate power transformers for each channel, improving channel separation and delivering a cleaner, immersive listening experience. It includes a zero gain cascaded voltage reference and linear power supplies for optimal stability. The preamplifier offers 4 single-ended inputs and 2 balanced inputs, with optional user-installable phono (MM/MC) and DAC cards (USB, Coax, Optical). It has a full touchscreen user interface with balance and input labeling, a machined metal remote, and classic Audio Research styling. Handmade in Minnesota, USA, the LS-3 represents a significant advancement in Audio Research's solid-state preamp lineup, combining cutting-edge technology with the brand's legacy of sound quality.