The MANLEY brand has existed since the late 1980s. The first products available on the market were high-quality high-fidelity tube amplifiers and preamplifiers built in the former Vacuum Tube Logic of America factory.

On January 30, 1989, EveAnna, then 20 years old and on a sabbatical after her studies at Columbia University, met the team and was hired by the production group. She quickly learned to solder and assemble tube amplifiers, and after training a new team of assemblers, EveAnna worked her way into the quality control department. It was at this time that the first professional Manley products were developed, starting with the original 1U Reference 60dB microphone preamplifier and soon followed by the Manley Enhanced Pultec and Mid Frequency equalizers. These products, along with the Reference Cardioid and Reference Gold microphones, all made their debut at the 1990 AES show in Los Angeles. In 1993, Manley Laboratories, Inc. became a distinct and separate entity from VTL.

The new Manley Labs factory located at 13880 Magnolia Avenue in the city of Chino east of Los Angeles was equipped to house both the Manley Hi-Fi and Pro Studio factories as well as the Langevin production lines, a new machining workshop, and printed circuit boards. The following year, the plant's capabilities were increased with the addition of a computer-controlled mechanical engraving machine, and most importantly, an electrical transformer manufacturing department. These custom transformers quickly became a distinctive hallmark of the Manley sound and remain so to this day.

After only three years at Manley Laboratories, co-founder David Manley abruptly left the company and the country in 1996. With EveAnna Manley at the helm, the modern profile of Manley Labs began to take shape.

In the late 1990s, several legendary products were introduced. These are the modern classics of our industry.
- 1994: Manley Stereo Variable Mu® Limiter-Compressor
- 1997: Manley VOXBOX® Reference Channel Strip
- 1997: Manley Stingray® Stereo Integrated Amplifier
- 1998: Manley Massive Passive® Stereo EQ

From the early 2000s to today, Manley has focused on streamlining production processes, becoming more efficient while maintaining the principles of audio quality and high-end integrity in the "Made in Chino, not China" manufacturing that has always guided the brand. Starting with the CORE® Reference Channel Strip in 2014 and continuing with the FORCE®, NU MU® and ELOP®+ newly designed power supplies in the latest Manley equipment offer very low noise levels, high-voltage energy, and superior dynamic reserve required for a rich and "fat" analog sound.

Manley Laboratories continues to produce very high-caliber recording, mixing, mastering, and hi-fi equipment, proudly preserving the great analog traditions on which the company was built — and always looking ahead and imagining the future of the audio industry.