A less common but serious issue: users overtightening rack screws or mounting the CLA-2A in a shaky tour rack can physically crack the main PCB. This often manifests as a crack that changes with temperature or when you gently press on the chassis.
Understanding why the crack happens requires a look inside the CLA-2A’s unique topology. Unlike FET or VCA compressors, the LA-2A (and its CLA-2A descendant) uses an electro-optical attenuator: the T4B cell.
A full recap is recommended if your CLA-2A is over 10 years old. Replace all axial and radial electrolytics in the:
The more widely discussed issue among audio forums (Gearspace, Reddit r/audioengineering) is an audible crackling, popping, or intermittent static during operation. This is often misdiagnosed as a "crack" in the sound rather than the structure. This sonic crack typically appears during gain reduction events, often sounding like:
For the purpose of this article, we will focus primarily on the sonic crack (audio artifact) as it is the most common complaint associated with the CLA-2A, though we will address physical cracks as they often cause sonic ones.
The term "crack" in this context is unfortunately ambiguous, referring to two distinct but related phenomena:
If you find a visible hairline crack on the PCB:
A less common but serious issue: users overtightening rack screws or mounting the CLA-2A in a shaky tour rack can physically crack the main PCB. This often manifests as a crack that changes with temperature or when you gently press on the chassis.
Understanding why the crack happens requires a look inside the CLA-2A’s unique topology. Unlike FET or VCA compressors, the LA-2A (and its CLA-2A descendant) uses an electro-optical attenuator: the T4B cell. Cla-2a Compressor Crack
A full recap is recommended if your CLA-2A is over 10 years old. Replace all axial and radial electrolytics in the: A less common but serious issue: users overtightening
The more widely discussed issue among audio forums (Gearspace, Reddit r/audioengineering) is an audible crackling, popping, or intermittent static during operation. This is often misdiagnosed as a "crack" in the sound rather than the structure. This sonic crack typically appears during gain reduction events, often sounding like: Understanding why the crack happens requires a look
For the purpose of this article, we will focus primarily on the sonic crack (audio artifact) as it is the most common complaint associated with the CLA-2A, though we will address physical cracks as they often cause sonic ones.
The term "crack" in this context is unfortunately ambiguous, referring to two distinct but related phenomena:
If you find a visible hairline crack on the PCB:
