![]() And probably the best thing that you can do with the vari mu compressor is to properly increase or decrease the gain which will introduce these features into the signal.Īlso, the impact that the attack and release have on the signal is really influential, because you will need to properly set up those parameters to complement your tracks. Probably one of the biggest impacts is the tubes that are used inside the unit and also the unique attack and release times that are found on such units. In terms of the sound that the Vari Mu compressor generates, it often times relates to sounding organically or creamy. When it comes to making changes to the gain, it can be increased or decreased in a non-instantaneous manner, which is something that we really like. Also, the detector of the levels inside of the compressor detects and changes the gain accordingly. One of the benefits that comes with the variable mu compression is that the tube compressor introduces a little bit of musical and appealing distortions into the signal. That is what the Variable Mu excels at limiting and compressing final mixes, 3-track mixes, or mastering mixes.Ĭharacteristics Of Variable-Mu Compression Additionally, you can always adjust the levels of your individual sources elsewhere, since there are separate threshold and output controls.Īs soon as you switch to Link mode, you will realize the advantage of the stereo input control. You may notice that it has ganged input controls, but it is certainly not mono-incompatible. Vari-Mu is ideal for dual-mono and stereo applications. Input and output can be modulated in a creative manner by turning up the input and reducing the output while using little or no compression. It is interesting to note that the knee actually becomes softer as more limiting is applied. 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. ![]() Characteristics Of Variable-Mu Compression.Manley Variable Mu Stereo Compressor Limiter.
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