Waves collaborated with the renowned mix engineer Chris Lord-Alge (CLA) to emulate three classic compressors, which are modeled after some of his favorites from the past.
In this post, we will compare the CLA-2A, CLA-3A, and CLA-76, and when to reach for each one.
Side-by-Side Comparison
CLA-2A (Opto Compressor)
The CLA-2A is based on the legendary LA-2A, an optical compressor that uses a light-dependent resistor for gain reduction.
Its compression is smooth, warm, and program-dependent, meaning the compressor reacts differently depending on the nature of the signal feeding it.
It has no attack or release controls, these are handled automatically by the optical circuit.
The CLA-2A is excellent for vocals (especially for adding warmth and smoothness), bass guitar, and any source where you want invisible, musical compression that adds character without sounding obviously compressed.
CLA-3A (FET/Optical Hybrid)
The CLA-3A is based on the LA-3A, a transistor-based evolution of the LA-2A design.
It’s faster and more aggressive than the 2A, with a brighter, more forward character.
Good for vocals that need more presence and attack, electric guitars, and sources where you want more obvious compression character than the 2A provides.
CLA-76 (FET Compressor)
The CLA-76 is based on the 1176, a FET compressor known for its fast attack, aggressive character, and harmonic coloration.
It’s the most aggressive of the three. Excellent for rap vocals, rock guitars, drums, and any source where you want punch, attitude, and fast transient control.
Choosing Between Them
- CLA-2A: Smooth, warm, transparent. Vocals, bass, ballads, anything needing musical glue.
- CLA-3A: Faster, brighter, more forward. Vocals needing more presence, guitars, midrange-heavy sources.
- CLA-76: Fast, aggressive, punchy. Rap vocals, drums, rock guitars, parallel compression.

