Langevin ELOP (Electro Optical Limiter)

Fast and transparent optical limiting. I used this mostly to catch peaks during vocal tracking. Tested and working. Shows light signs of use, and a few marks on the chassis from racking.

From Manley‘s website:

The Langevin ELOP® is a timeless stereo electro-optical limiter that makes flawless dynamics control effortless. Born from a legacy of classic 'LA' series limiters, this all-discrete, Class-A unit uses a passive optical cell to act as a "smart volume control," delivering a transparent and musical compression that is both powerful and sonically beautiful. It is the perfect tool for engineers who want a warm, vintage-inspired sound with the reliability of modern engineering.

Effortless Dynamics and Sonic Purity

The principle behind the Langevin ELOP® is elegant in its simplicity. By using a light-dependent resistor to attenuate the signal, the unit avoids the complex distortion products found in other designs. The result is a uniquely transparent gain reduction that can be pushed to extreme levels without sounding "squashed" or unnatural. It's a "set-and-forget" tool that makes dynamic control feel intuitive and natural, allowing you to focus on the performance.

A Legacy of Analog Excellence

The Langevin ELOP® is a product of Manley’s decades of experience in analog design. Its all-discrete Class A audio path, paired with high-quality components, delivers a rich, analog character with a low noise floor and immense headroom. With its balanced XLR and unbalanced 1/4” inputs and outputs, and a stereo link switch for precise stereo tracking, it is a versatile workhorse that has earned its place in countless professional studios.

Classic Feel, Modern Reliability

Built with a painstaking attention to detail, the Langevin ELOP® is hand-crafted and tested in our California factory. The unit features silent, conductive plastic input attenuators and high-quality switches for a smooth and repeatable workflow. Its compact, 1U design and durable construction ensure it is a reliable and indispensable tool that will stand the test of time, both on the road and in the studio.