![]() By doing so, the tube’s gain will be changed smoothly.Ī soft-knee 1.5:1 ratio is used in the Variable Mu’s Compress mode, whereas a sharper knee 20:1 ratio is used in the Limit mode when limiting signals of greater than 12dB. With the vacuum tube rectified side-chain control voltages, the 5670 dual triodes are continuously re-biased so the peak-reducing and compression action can happen. Due to the variable gain, “mu” means gain or amplification factor, unlike most devices, the Variable Mu provides true variable gain. There is no clone of the Variable Mu, but the Fairchild 670 series uses a similar limiting principle, and those who know this gear know it’s very special. In terms of versatility and reliability, Manley’s Variable Mu is the best-selling device in the company’s product line. Mixing and mastering are optimized by its adjustable attack and release settings, but many tracking situations can be accommodated by it as well. Its capabilities are well known to those who have heard the Fairchild 670 Series limiters in action – yet the Variable Mu produces an even sweeter sound than the classic limiters. There is no doubt that the renowned Manley Vari Mu Limiter/Compressor is the choice of producers and recording engineers worldwide – and you will be a believer as soon as you hear what it can do for your sound! Manley Variable Mu Stereo Compressor Limiter This type of electronic system uses variable voltage input in place of a transistor, in which the variable voltage input changes the bias of the tube instead of changing the gain of the transistor. It is today that Manley provides an update on this approach based on the state of the art. In the early days of compression, Fairchild and Altec were the first devices to implement this principle. As a result of this voltage, the tube’s gain is directly affected. The level detector circuit transmitted voltage to the tube in accordance with the principle they were working on. What Is Variable Mu Compressor?Ī tube-based (or valve-based) compressor was the only machine-modifying gain device available in the early days of audio. Having a smooth and clear compressing style is perfect for gluing mixes together without adding too much saturation or altering the original signal too much, which makes it a favorite tool among mastering engineers. It was originally a hardware unit designed to produce a creamy, tube-based analog squeeze, variable mu compressors have been used in mixing and mastering for decades. In this article we are going to talk about the VariMu Compressors, also found around the web like Variable Mu compressors. ![]() Welcome to yet another informative guide on another type of compressor.
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