Compressor / Limiter Duo Portico™ 5043 The 5043 Compressor/Limiter Duo is a new and powerful approach to dynamic processing! This new addition to the Portico range is designed with both tracking and mixing applications in mind. TRS Connections are Provided to Link Multiple 5043s The Portico 5043 embodies two independent Compressor-Limiters (Channels A and B) housed within a half rack, 1U module. They can be used independently or connected in sequence to provide two separate control slopes. When used independently, for example, as a stereo pair, linking the D.C. control circuits via a front panel Push-Button, enables the level of each unit, “A” and “B”, to be held in a constant relationship. Rear panel TRS connections are provided to link multiple 5043s. This linking may also be extended to the former AMEK CIB and DMCL units. When used in sequence, the Portico 5043 can be configured easily to provide dual slope compression and limiting. Buss or Line Imput Selection Any number of Portico modules that are equipped with the “TO BUSS” button may be sent to the BUSS input of the 5043 which makes it the ideal choice to form the core of a simple and cost-effective Portico mixing system. The Line input, when selected, provides a dedicated, transformer-balanced 10K impedance bridging input so that the 5043 may be inserted or included in any appropriate part of the signal chain at Console line-up level. Feed Forward or Feed Back? The Portico 5043 provides a choice of feed-forward or feed-back compression modes. The FB Button allows the user to switch between the two modes. If the V.C.A. Control voltage is taken from the 5043 input, the V.C.A. knows right away that a gain change is required and there is almost immediate response. This is known, logically, as a “Feed-Forward” compressor. If the V.C.A. Control voltage is taken from the 5043 output, (i.e. after the V.C.A.) it cannot act immediately on the V.C.A. because it has already been modified by settings of the V.C.A. and circuits through which it has passed. This is known as a “Feed-Back” compressor. The two compression characteristics are quite different; there is more “Overshoot” and both the attack and recovery ramps are changed, providing the user with powerful choices. Almost all of Neve’s earlier designs were “Feed-Back”. They were more musical and sweeter than with “Feed-Forward” designs; however the “Feed-Forward” design provides greater accuracy. Compression For signals below the "threshold" level that has been set, a compressor provides a linear path allowing signals to be amplified without the gain being adjusted in any way. When signals exceed the "threshold" level, gain is reduced in a controlled manner that depends on the Ratio that has been set. Meters Two Peak LED METERS are provided that show OUTPUT LEVEL and GAIN REDUCTION. These are switched between Channel A and Channel B on the central METER SELECT Push Button. FURTHER INFORMATION If you need any product information, or advice, or just the name of a dealer in your area who we recommend, please feel free to contact us anytime and we'll be glad to help out. For further information please email: sales@sonic-distribution.com or call the Main Office: (0845 500 2 500) anytime Monday to Friday 9.30-6.00pm Copyright Sonic Distribution LTD. 2007 All Trademarks and ownership rights respected.