User manual PRESONUS CL44

[. . . ] CL44 Four Channel Compressor/Limiter User's Manual VERSION 1. 1 PreSonus Limited Warranty PreSonus Audio Electronics Inc. warrants this product to be free of defects in material and workmanship for a period of one year from the date of original retail purchase. This warranty is enforceable only by the original retail purchaser. To be protected by this warranty, the purchaser must complete and return the enclosed warranty card within 14 days of purchase. [. . . ] This function may also be useful in creating special effects with the compressor by 'overcompressing'. It is important to remember that Pro Gear has a hotter +4 level, whereas consumer gear runs at the lower level of -10. Flip Button The Flip Button ` flips' the tip and ring (between SEND/IN and RETURN/OUT) on the ¼" jack to match the wiring preference of your console. Sidechain Insert The sidechain jack on each channel interrupts the signal that the compressor is using to detect the audio signal for processing. When no connector is inserted into this jack, the input signal goes directly to the compressors control circuitry (normaled). When a connector is inserted into this jack, the signal path is broken. If you have inserted a tip-ring-sleeve connector, the input signal is sent back out of the CL44 via the ring of the connector. This signal can then be processed by an equalizer for example to reduce sibilance (de-essing) in a vocal track. The signal is then returned to the unit via the tip of the connector. The signal sent to the tip could also be that of a narrator or vocalist. In this application, the audio that you are passing through the compressor will automatically 'duck' when the narrator speaks or vocalist sings. 2. 5 POWER Power Connection The power jack on your CL44 accepts a standard IEC cord like those found on most computers and professional recording equipment. Your CL44 contains a custom built in power supply, no wall wart. This way you can be assured of clean power combined with rugged construction that has been designed to last!Power Switch I = ON, 0 = OFF. 3. 1 BASIC APPLICATIONS Example Setup Compressing a Voice or Vocal Track Probably the most common use of a compressor is to limit the dynamic range of a vocalist during a live performance or a recording. It is almost always necessary to compress a vocal take during a recording session. Most vocalists have a very wide dynamic range, and if the vocalist does not have 'studio' experience, the dynamic range of the vocal performance can be enhanced by the microphone techniques demonstrated during a session. This wide variation in level makes it difficult to properly record a vocal take, especially in digital multi-track recorders which have definite limitations in headroom. Compressing a vocal also makes it easier to place the vocal track in a mix so that it remains 'in your face' throughout the track. To set up for a vocal take, insert a channel of your CL44 into the same channel as the microphone on your mixer. If your mixer has an insert point, insert the compressor there. If you don't have an insert point you will have to place the compressor after your mixer's bus-output or whichever output you're using by coming out of your mixer to the input of the CL44; then out of the CL44 to the input of your recorder. If you're using a stand alone mic preamp; patch the CL44 after the preamp and then to the recorder. [. . . ] As the compression threshold is lowered, more and more of the input signal is compressed (assuming a nominal input signal level). Care must be taken not to 'over compress' a signal. Too much compression destroys the acoustical dynamic response of a performance. ('Over compression', however, is used by some engineers as an effect, and with killer results!) Compressor/limiters are commonly used for many audio applications. [. . . ]