Slow, program-dependent optical, tube-based, smooth compression.
The CLA-2A compressor limiter is one of the most iconic and widely used audio processors in the music industry. Developed by LA-2A, a legendary manufacturer of audio equipment, the CLA-2A has been a staple in recording studios and live sound applications for decades. In this article, we'll explore the history, design, and features of the CLA-2A, as well as its uses and applications in music production.
4.5/5
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: Allows you to filter out certain frequencies (like low-end) from the detection circuit, preventing the compressor from overreacting to heavy bass. Analog Realism Toggles
The CLA-2A is a robust and reliable unit, but like any piece of equipment, it requires regular maintenance and repair to ensure optimal performance. Here are some tips for maintaining and repairing the CLA-2A:
The result is a plugin that boasts the while also providing presets curated by the master himself for vocals, guitar, bass, and drums. This gives users immediate access to the same processing chain CLA uses to define the sound of hard-hitting rock and pop music. In this article, we'll explore the history, design,
Want auto-tune style leveling without the artifacts? Insert two CLA-2As in series. Set the first to Limit (4 dB reduction) to catch peaks. Set the second to Compress (4 dB reduction) to smooth the body. The result is a hyper-present vocal that never jumps out of the speakers.
: Optional analog "hiss" and "hum" settings (50Hz/60Hz) to replicate the authentic noise floor of vintage hardware units.
: It is the industry standard for leveling vocals without making them sound "squashed." It is often used as a second compressor after a faster one (like the CLA-76) to round out the sound. Bass Guitar If you share with third parties, their policies apply
To understand the significance of the CLA-2A plugin, one must first understand the physics of its ancestor. Designed by Jim Lawrence in the early 1960s, the original hardware LA-2A was a leveling amplifier that utilized an electro-luminescent optical attenuator—simply known as an "opto" compressor. Unlike modern VCA (Voltage Controlled Amplifier) compressors which react with mathematical precision, an opto compressor uses a light source and a photo-resistor. Because the photo-resistor takes time to react to the light, the compression possesses a distinct lag. This creates a program-dependent attack and release that is incredibly musical. It allows transient peaks to pass through before clamping down, resulting in a sound that is described as "transparent," "smooth," and "creamy."
Do not default to V2.
The "Compress" mode (approx. 3:1 ratio) is standard for most tracks. Switching to "Limiter" increases the ratio significantly, which is great for pins-and-needles sustain on instruments like electric guitar solos. The High-Frequency (HiFreq) Screw:
Controls the output level of the plugin. It is used for makeup gain to restore volume lost during compression.
This optical design created a unique, program-dependent release characteristic:
Slow, program-dependent optical, tube-based, smooth compression.
The CLA-2A compressor limiter is one of the most iconic and widely used audio processors in the music industry. Developed by LA-2A, a legendary manufacturer of audio equipment, the CLA-2A has been a staple in recording studios and live sound applications for decades. In this article, we'll explore the history, design, and features of the CLA-2A, as well as its uses and applications in music production.
4.5/5
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
: Allows you to filter out certain frequencies (like low-end) from the detection circuit, preventing the compressor from overreacting to heavy bass. Analog Realism Toggles
The CLA-2A is a robust and reliable unit, but like any piece of equipment, it requires regular maintenance and repair to ensure optimal performance. Here are some tips for maintaining and repairing the CLA-2A:
The result is a plugin that boasts the while also providing presets curated by the master himself for vocals, guitar, bass, and drums. This gives users immediate access to the same processing chain CLA uses to define the sound of hard-hitting rock and pop music.
Want auto-tune style leveling without the artifacts? Insert two CLA-2As in series. Set the first to Limit (4 dB reduction) to catch peaks. Set the second to Compress (4 dB reduction) to smooth the body. The result is a hyper-present vocal that never jumps out of the speakers.
: Optional analog "hiss" and "hum" settings (50Hz/60Hz) to replicate the authentic noise floor of vintage hardware units.
: It is the industry standard for leveling vocals without making them sound "squashed." It is often used as a second compressor after a faster one (like the CLA-76) to round out the sound. Bass Guitar
To understand the significance of the CLA-2A plugin, one must first understand the physics of its ancestor. Designed by Jim Lawrence in the early 1960s, the original hardware LA-2A was a leveling amplifier that utilized an electro-luminescent optical attenuator—simply known as an "opto" compressor. Unlike modern VCA (Voltage Controlled Amplifier) compressors which react with mathematical precision, an opto compressor uses a light source and a photo-resistor. Because the photo-resistor takes time to react to the light, the compression possesses a distinct lag. This creates a program-dependent attack and release that is incredibly musical. It allows transient peaks to pass through before clamping down, resulting in a sound that is described as "transparent," "smooth," and "creamy."
Do not default to V2.
The "Compress" mode (approx. 3:1 ratio) is standard for most tracks. Switching to "Limiter" increases the ratio significantly, which is great for pins-and-needles sustain on instruments like electric guitar solos. The High-Frequency (HiFreq) Screw:
Controls the output level of the plugin. It is used for makeup gain to restore volume lost during compression.
This optical design created a unique, program-dependent release characteristic: