• RUPERT NEVE PORTICO 5043 2 CH COMP

Rupert Neve Portico 5043 Dinamički Procesor

Cena 227.880,00 din. PPC: 239.880,00 din. (-5%)
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Dvokanalni kompresor/limiter iz radnje starog majstora! Potpuno nov pristup dizajniranju mreže za dinamičku obradu signala donosi spravu jednako korisnu u procesu snimavanja materijala, kao i u procesu miksanja. Dva kanala ovog uređaja se nalaze u kućištu veličine polovine reka i moguće ih je koristiti kao dva nezavisna kanala ili kao stereo par, pri čemu relativni odnos signala prilikom linkovanja ostaje uvek isti. Za obradu surround mikseva je moguće povezati više Portico uređaja.

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OPIS PROIZVODA

The 5043 Duo Compressor/Limiter is a powerful approach to dynamics processing for the Portico Series, designed with both tracking and mixing applications in mind.
 
The Portico 5043 embodies two independent Compressor-Limiters (Channels A and B) housed within a half rack, 1U module. They can be used independently (on two distinct tracks), linked as a stereo pair, or connected in sequence to provide two separate control slopes. When used as a stereo pair, linking the DC control circuits via the front panel A/B button enables the level of each channel to be held in a constant relationship. Rear panel TRS connections are provided to link multiple 5043s. This linking may also be extended to some of Rupert’s former AMEK CIB and DMCL units.
 
Buss or Line Input 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.
 
How It Works
To control gain, a V.C.A. or Voltage Controlled Amplifier (or Attenuator) is used. There are many types of voltage control devices, including tubes, discrete and integrated solid state circuits and naturally non-linear devices, each one having its own characteristic behavior that reflects sonically on the final performance, providing a character or signature that can be musically attractive (or not!). The Portico 5043 makes use of a very accurate, low noise, low distortion V.C.A. having essentially no signature of its own.
 
Greg Walker
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, some of the signal will be unnecessarily gain-controlled. If the response is too slow, the signal will overshoot and the first few cycles will not get compressed. The speed and accuracy of the response – known as the “attack” – and the timeframe that gain remains under the initial control – known as the “release” or “recovery” – each play a large part in the way a compressor sounds.
 
All Portico modules use input and output transformers and almost entirely discrete component amplifiers. In fact, the Line amplifiers on their own, inserted into the signal chain, are capable of enhancing the sonic quality of many signal sources, especially those of digital origin. These are some of the factors that enable the Portico 5043 to work so unobtrusively within the context of a very high quality audio chain.
 
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 (i.e. before the V.C.A.), the V.C.A. knows right away that a gain change is required and there is an 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 the compressor circuit 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 Rupert’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. Each is useful in its own way.
 
Ratio and Threshold
Above a given threshold, signals are reduced by an adjustable amount ranging from 1:1, (which is linear, or no reduction at all), to more than 40:1 which is a very high ratio, equivalent to that of a Limiter. A compressor’s ratio is sometimes referred to as “Slope” because when depicted on a graph, the slope of the graph (representing Output vs. Input) is what changes.
 
Ratio and Threshold are closely inter-dependent. If a RATIO as high as 40:1 has been set, then if the THRESHOLD is set at 0 dBu, even when a massive signal of +40 dBu (unlikely!) is presented to the input, the output signal will only be +1 dBu. RATIOS as high as this would normally be set somewhere above 0 dBu – say at +14 dBu, in order to prevent the output signal level exceeding just over +14 dBu – to protect, for example, a digital recorder. Similarly, if a RATIO of 5:1 has been set, an input signal which is 10dB above THRESHOLD will only rise by 2dB above that THRESHOLD at the output.
 
The THRESHOLD control ranges from below -30dB to +22dBu. When THRESHOLD is set at a low level, with a fairly high RATIO the amount of gain reduction will be considerable and it may be necessary to use some GAIN after the compressor to restore the apparent signal level.
 

Features:

 
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, the gain is reduced in a controlled manner that depends on the Ratio that has been set.
 
Gain
GAIN range provided is from -6dB to +20 dB. ?As already noted, when compression has taken place, it may be necessary to increase the overall gain to restore the apparent program level
 
Ratio
Range from 1:1 to LIMIT (i.e. 40:1)
 
Threshold
Range from -30dBu to +20dBU
 
Attack Time
Range from 20 mS to 75 mS.
 
Release / Recovery Time
Range of RELEASE time is 100 mS to 2.5 Seconds.
 
Stereo Operation
When the LINK Push-Button is engaged on both channels 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.
 
Composite Operation
Cascading the two independent sections of the Portico 5043 Compressor- Limiter provides extremely powerful and comprehensive control of Dynamic Range.
 
Ducking
When the LINK Push-Button is engaged, the signal passing through, channel A, may be used to control the amplitude of channel B. For example, the level of music through channel A can be controlled by speech on channel B, i.e. reducing the music level to make a “speech-over” announcement.
 
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.
 

Specs:

  • Gain Range: Continuously variable from 6 dB to +20 dB.
  • Threshold Range: Continuously variable from 36 dB to +22 dB.
  • Ratio Range: Continuously variable from 1.1:1 to Limit (40:1).
  • Attack Range: Continuously variable from 20mS to 75mS
  • Release Range: Continuously variable from 100mS to 2.5 Seconds.
  • FF/FB: Feed-Forward or Feed-Back VCA control.
  • S/C or LINK: Multiple 5043’s may be daisy-chained via the rear panel jacks. When an individual channel is engaged, it’s control voltage appears at the rear panel LINK jack. When both channels are engaged they are linked together internally and their control voltage also appears at the rear panel LINK jack.
  • LINE or BUSS input select: Selects rear XLR input or Buss Input jacks to accept Portico series buss outputs.
  • Maximum Output Level: Balanced and Floating Transformer Output +25 dBu.
Cena 240.000,00 din.
PPC: 299.880,00 din. ( -20% ) Raspoloživo na upit
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