User Manual for Rupert Neve Designs Portico 543 - Compressor Limiter Click to enlarge the picture
Contents of the user manual for the Rupert Neve Designs Portico 543 -
- Product category: Dynamics Processors Rupert Neve Designs
- Brand: Rupert Neve Designs
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Rupert Neve Designs Dynamics Processors
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User manual for the Rupert Neve Designs Portico 543 - contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
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Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Rupert Neve Designs user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Rupert Neve Designs product will considerably shorten its lifespan!
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Product description The 500 Series: Guide to Compressors Read More The Portico 543 from Rupert Neve is a 500 Series module that delivers unobtrusive, musical-sounding dynamic control and brick-wall limiting. Based on the company's Portico 5043, the 543 provides full control over the standard compressor-limiter functions and includes Feed-Forward/Feed-Back modes, Peak/RMS detection and a built-in side chain High-Pass Filter. Additionally, two units can be linked for stereo operation.
Built around Rupert Neve's custom transformer designs, the 543 can also be used with the compressor inactive to provide a transformer-coupled, high-performance line amplifier. The unit utilizes a VCA (Voltage Controlled Amplifier) to control gain and there is much discussion about whether these types of circuits affect the audio signal. To avoid any such scenario, the 543 makes use of an accurate, low-noise, low-distortion VCA that has essentially no sonic signature of its own.
The compressor also has the ability to switch between Feed-Back and Feed-Forward modes. A feed-back compressor splits the input after it has passed the VCA section and sends the split DC signal back to the VCA for compressor control. In a feed-forward design, the input itself is used prior to being passed through the VCA. One delivers a slightly slower but smoother attack, while feed-forward offers faster, more technically accurate response times. Although the differences are relatively small, they are nonetheless sonically perceptible.
The Peak/RMS mode allows for switching the VCA to respond to either RMS (Root Mean Square) or peak levels. An RMS circuit tends to better mimic the way human ears perceive apparent loudness, while a peak circuit tend to directly respond to the waveform voltage, and is more appropriate for the prevention of clipping and maximizing levels. In this unit, the Peak mode is a Peak/RMS hybrid that incorporates the best of each method. - Single-channel, transformer-coupled compressor housed in a 500 Series module
- A gain range of -6 dB to +20 dB allows for compensating for any signal loss due to compression
- When the Peak switch is engaged, the compressor uses a combination of peak and RMS (average) detection to determine level - when disengaged, it follows RMS levels
- A switchable 250 Hz High-Pass Filter can be applied to the VCA side chain signal, allowing the compressor circuit to disregard sustained low-frequency content
- With the Link switch engaged on two 543 modules and controls set approximately to the same values, Gain reduction on both channels will be the same, preserving stereo balance and position - function is available either on "link-buss" enabled 500 Series racks, or by hard-wiring the two "link-busses" in non-compatible racks
- When the Link switch is engaged on two connected 543 modules, ducking of one source is possible
- Two peak LED meters display output level and gain reduction
UPC: 752423656981 In the Box Rupert Neve Designs Portico 543 - Compressor/Limiter (500 Series Module) One (1) Year Warranty Table of Contents
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Technical parametersRupert Neve Designs 543 Specs | Number of Channels | Single | | Compression Type | Feed-Forward or Feed-Back VCA control | | Gain Range | -6 dB to +20 dB, continuously variable | | Inputs | 1 x XLR (on chassis) | | Outputs | 1 x XLR (on chassis) | | Maximum Output | +23 dBu, 20 Hz to 40 kHz (balanced and floating transformer output) | | Threshold | -30 dB to +22 dB, continuously variable | | Ratio | 1.1:1 to 40:1 (limit), continuously variable | | Attack | 20 ms to 75 ms | | Release | 100 ms to 2.5 s | | Frequency Response | 18 Hz to 150 kHz, unity gain/-3.0 dB | | Noise | Measured at main output, 22 Hz to 22 kHz unweighted, 40 Ω termination
>-103 dBu, gain at unity, compressor bypassed
>-92 dBu, gain at unity, compressor engaged | | THD + N | Main Output: >0.0006%, compressor bypassed
Main Output: >0.02%, compressor engaged | | Crosstalk | >-90 dB @ 15 kHz, channel to channel | | Meters | Monitor Input Level and Gain Reduction | | Power Requirements | From chassis | | Dimensions | Single rack space 500 Series module | | | | Package Weight | 2.0 lb | | Box Dimensions (LxWxH) | 9.9 x 7.7 x 2.8" |
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