User manual NEVE 5043

[. . . ] INTRODUCTION Thank you for your purchase of the 5043 Duo Compressor Limiter. Everyone at Rupert Neve Designs hope you enjoy using this tool as much as we have enjoyed designing and building it. Please take note of the following list of safety concerns and power requirements before the use of this or any Portico SeriesTM product. Safety It's usual to provide a list of "do's and dont's" under this heading but mostly these amount to common sense issues. [. . . ] Tsutomu Oohashi, Emi Nishina, Norie Kawai, Yoshitaka Fuwamoto, and Hishi Imai. National Institute of Multimedia Education, Tokyo. "High Frequency Sound Above the Audible Range, Affects Brain Electric Activity and Sound Perception" Paper read at 91st. (1), Conclusion. 4 DESCRIPTION GENERAL DESCRIPTION The Rupert Neve Designs 5043 module is a half rack width, 1. 75" (1U) module in the now wellknown PorticoTM style. The 5043 is ideal for both tracking and mixing applications with selectable Mixing Buss or Line inputs. The 5043 is an ideal choice for either standalone operation, or forming the core of a larger mixing system. As with the entire PorticoTM range, the construction takes the form of a heavy and robust steel shell providing total magnetic screening and exceptional mechanical stability. The front panel is machined from a solid . 2" aluminum plate with a steel sub panel behind it. Alternative front panel layouts are available providing a choice of vertical or horizontal mounting for the 5043. When the horizontal front panel is chosen, a single 5043 can sit firmly on a bench or desktop on its detachable rubber feet. Two 5043's can be joined with the optional 5221-RM Horizontal Joining Kit, which can be mounted across a standard 19" rack. When the vertical option is chosen, up to eight 5043's can be mounted in the optional 5285-RM Rack-Mounting Frame that is equipped with guide rails. This leaves a 3" width that can be used to house a power supply or other master modules. The 5285-RM Rack-Mounting Frame also includes basic rear cable management, and optional blank panels are available to fill any unused spaces when the full complement of eight modules is not fitted. The PorticoTM 5043 embodies two independent Compressor-Limiters, "A" and "B". They can be used independently or connected in sequence to provide two separate control slopes. control circuits may be linked via a front panel push-button so that the level of each unit, "A" and "B", may be held in a constant relationship for stereo operation. Rear panel connections are provided to enable linking of multiple 5043s. The linking may also be extended to the former AMEK CIB and DMCL units. THE WAY THE 5043 WORKS A part of the audio signal is rectified and smoothed to produce a suitable control voltage for the V. C. A. which has to respond very quickly and have low distortion. If the response is too fast, low frequency signals will themselves, be "gain controlled"! [. . . ] COMPOSITE OPERATION Cascading the two sections, A and B, of the PorticoTM 5043 Compressor Limiter provides extremely powerful and comprehensive control of dynamic range. When an external audio connection is made from the output of one channel to the input of the other, the overall compression characteristics become a composite of the two. For example, channel A may be set up as a low ratio compressor and channel B may be set up as a high ratio compressor or limiter, to produce a powerful composite characteristic (as shown in the graph below) +10 +8 +6 +4 +2 -0 -2 -4 -6 dBu -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -30 -25 -20 -15 -10 -5 dBu +0 +5 +10 +15 +20 9 FEATURES STEREO When the LINK push-button is engaged and the two channels, A and B, set to approximately the same values, GAIN control on both channels will be the same to preserve stereo balance, levels normally being controlled by the channel with the higher signal level. DUCKING When the LINK push-button is B A Portico engaged, the signal passing through channel A, may be used 5043 to control the amplitude of channel B. [. . . ]