close deal

Our Price: $19.95

Sale: $14.95 (25% off)

See this Deal

Hal Leonard

Primus Anthology A-N Guitar & Bass Tab Book

product image

Remaining Quantity: 7

see this deal

*Additional discounts do not apply

Price valid on in stock items only.


(800) 348-5003
www.wwbw.com
Call Our Product Specialists: (800) 348-5003
CartView Cart
  • Accessories
    • Woodwind Accessories
      Reeds
      Mouthpieces
      Ligatures and Mouthpiece Caps
      Straps and Supports
      Instrument Stands
      Cases and Gig Bags
    • Brass Accessories
      Mouthpieces
      Mutes
      Instrument Stands
      Replacement Parts
      Valve, Rotor and Slide Oil
      Cases and Gig Bags
    • Music Stands
    • Orchestral String Accessories
      Strings
      Cases
      Instrument Stands
      Bows & Rosin
      Instrument Pickups
      Humidifiers
    • Care and Cleaning
      General Care
      Woodwind Care
      Brass Care
      Orchestral String Care
      Drum Care
      Guitar Care
    • Marching Band
      Batons and Maces
      Color Guard
      Field Accessories
      Lyres and Flip Folders
      Podiums and Transport
      Uniforms
    • Practice and Performance Aids
      Tuners and Metronomes
      Phrase Samplers
      Vocal Accessories
      Hand and Finger Exercisers
      Tone Enhancers and Practice Aids
      Carts and Stage Accessories
    • Lifestyle
      Clothing
      Caps and Headwear
      Collectibles
      Home Furnishings
      Shoes and Footwear
      Jewelry and Watches
      Lifestyle Accessories
  • Woodwinds
    • Saxophones
      Alto Saxophones
      Tenor Saxophones
      Soprano Saxophones
      Baritone and Bass Saxophones
      Saxophone Necks
      Saxophone Reeds
      Saxophone Mouthpieces
    • Flutes and Piccolos
      Flutes
      Piccolos
      Alto Flutes
      Bass Flutes
      Flute Head Joints
    • Clarinets
      Bb Clarinets
      A Clarinets
      Eb Clarinets
      Bass Clarinets
      Harmony Clarinets
      Clarinet Barrels
      Clarinet Reeds
      Clarinet Mouthpieces
    • Double Reed Instruments
      Oboes
      English Horns
      Bassoons
      Bassoon Bocals
      Oboe and Bassoon Reeds
    • Woodwind Accessories
      Reeds
      Mouthpieces
      Ligatures and Mouthpiece Caps
      Straps
      Instrument Stands
      Cases and Gig Bags
      Care and Cleaning
    • Recorders
  • Brass
    • Trumpets
      Bb Trumpets
      C Trumpets
      Eb / D Trumpets
      F / G Trumpets
      Piccolo Trumpets
      Bass Trumpets
      Pocket Trumpets
      Herald Trumpets
    • Cornets
      Bb Cornets
      C Cornets
      Eb Cornets
    • Flugelhorns
      Professional Flugelhorns
      Intermediate Flugelhorns
      Student Flugelhorns
    • French Horns
      Double Horns
      Single French Horns
      Triple Horns
      Descant French Horns
    • Trombones
      Tenor Trombones
      Bass Trombones
      Alto Trombones
      Valve Trombones
      Soprano Trombones
    • Baritone Horns
      Alto and Tenor Horns
      Concert Baritones
    • Euphoniums
      Professional Euphonium
      Intermediate Euphonium
      Student Euphonium
    • Tubas
      Bb Tubas
      C Tubas
      Eb Tubas
      F Tubas
    • Marching Brass
      Marching Trumpets
      Mellophones
      Marching French Horns
      Marching Baritones
      Marching Euphoniums
      Convertible Tubas
      Marching Tubas
      Sousaphones
    • Bugles
    • Brass Accessories
      Mouthpieces
      Mouthpiece Accessories
      Mutes
      Instrument Stands
      Replacement Parts
      Cases and Gig Bags
      Care and Cleaning
  • Orchestral
    Strings
    • Violins
    • Violas
    • Cellos
    • Double Bass
    • Harps
    • Orchestral String Accessories
      Strings
      Bows and Rosin
      Cases
      Instrument Stands
      Bowed Instrument Pickups
      Humidifiers
      Mutes
      Replacement Parts
  • Sheet Music,
    Books & More
    • Browse by Instrument
      Flute & Piccolo
      Clarinet
      Oboe & Bassoon
      Saxophone
      Trumpet
      Trombone
      French Horn
      Euphonium & Tuba
    • String Instrument Books
      Violin
      Viola
      Cello
      Double Bass
    • Concert Band Music
    • Jazz Band Music
    • Piano/Keyboard Books
    • Vocal Books
    • Real & Fake Books
    • Tablature
  • Classroom &
    Kids
    • Recorders
    • Orff Instruments
      Metallophones
      Xylophones
      Glockenspiels
      Instrument Bars
      Orff Mallets
    • Classroom Rhythm Instruments
      Kids Hand Drums
      Classroom Percussion Sets
      Shakers and Rattles
      Claves and Blocks
      Kids Tambourines and Cymbals
    • World Percussion
      Bongos
      Congas
      Djembes
      Hand Percussion
      Steel Drums
    • Boomwhackers
    • Tuned Bells
    • Classroom Furniture
      Risers
      Music Storage
      Rolling Carts and Instrument Storage
      Music Stands
    • Elementary Music Books
      Songbooks
      Music and Movement
      World and Folk Music
      General Music
      Shows and Musicals
      Music Theory
      Games
      Teaching Aids
    • Kazoos
  • Percussion
    • Concert Drums
      Concert Snare Drums
      Concert Toms
      Concert Bass Drums
      Timpani
      Drop Covers & Cases
      Hardware
      Concert Sticks / Mallets
    • Mallet Percussion
      Marimbas
      Vibraphones
      Xylophones
      Bells & Glockenspiels
      Chimes
      Drop Covers & Cases
      Keyboard Mallets
      Xylosynths
    • Marching Percussion
      Marching Snare Drums
      Marching Tenors
      Marching Bass Drums
      Marching Sticks
      Carriers
      Cases & Covers
      Parts & Hardware
    • World Percussion
      Congas & Hand Drums
      Hand-Held Percussion
      Effect Percussion
      Brazillian & Samba
      Timbales
      Steel Drums
    • Auxiliary Percussion
      Tambourines
      Triangles
      Concert Blocks
    • Concert Cymbals & Gongs
      Crash Cymbal Pairs
      Suspended Cymbals
      Marching Cymbals
      Gongs & Crotales
    • Sticks & Mallets
      Marching Snare Sticks
      Tenor Mallets
      Bass Drum Mallets
      Concert Sticks
      Concert Keyboard Mallets
      Timpani Mallets
      Brushes
      Sticks & Mallet Bags
    • Drum Heads
      Timpani Heads
      Snare Drum Heads
      Concert Bass Drum Heads
      Marching Drum Heads
      All Drum Heads
    • Practice Pads
    • Student Snare / Bell Kits
  • Drums
    • Acoustic Drums
      Complete Sets
      Shell Packs
      Snare Drums
      Drum Cases & Bags
    • Electronic Drums
      Complete Sets
      Electronic Drum Pads
      Amplifiers
      Acoustic Drum Triggers
      Sound Modules
      Drum Marchines
    • Cymbals
      Cymbal Packs
      Crash
      Ride
      Hi-Hat
      Splash
      China & Effect
      Cymbal Cases & Bags
    • Drum Heads
    • Hardware
      Pedals
      Thrones
      Cymbal Stands
      Snare Stands
      Hardware Cases & Bags
    • Accessories & Parts
      Drum Shields
      Rugs
      Drum Cases
      Parts
      Racks & Clamps
      Impact Badges & Dampening
      Drum Keys & Tuning Tools
      Care & Cleaning
    • Sticks & Brushes
  • Pro Audio
    • Microphones & Wireless
      Wireless Systems
      Live Microphones
      Recording Microphones
      Microphone Stands
      Microphone Cables
      Microphone Accessories
    • Live Sound
      Live Sound Packages
      PA Cabinets
      Mixers
      Power Amplifiers
      Signal Processors
      Stage Supplies
      Mixer Cases and Bags
      Power Essentials
    • Recording
      Recording Packages
      Interfaces
      Studio Monitors
      Audio Recorders
      Studio Furniture
      Acoustical Treatment
    • Software
      Notation Software
      DAW Software
      Sound Libraries and Loops
      Marching and Drill Design
    • Computers
    • iOS Devices
    • Headphones
    • DJ Gear
      DJ Cases
      DJ Controllers
      DJ Packages
    • Lighting and Stage Effects
    • Karaoke
  • Guitars
    • Guitars
      Electric Guitars
      Acoustic Guitars
      Classical & Nylon Guitars
      Guitar Value Packages
    • Bass
      Electric Bass Guitars
      Electric-Acoustic Bass Guitars
      Electric Upright Basses
      Double Basses
    • Amplifiers & Effects
      Guitar Amplifiers
      Bass Amplifiers
      Multi Effects
      Guitar Effects
      Bass Effects
      Loop Effects
    • Guitar Accessories
      Strings
      Cases & Gig Bags
      Pickups & Parts
      Picks
      Straps
      Guitar Stands & Hangers
    • Folk Instruments
      Mandolins
      Ukuleles
      Banjos
      Resonators
      Dulcimers
      Pedal & Lap Steels
      Autoharps
      Latin Strings
  • Keyboards
    • Digital Pianos
    • Synthesizers
    • Workstations
    • Organs
    • Portables & Arrangers
    • MIDI Controllers
    • Keyboard Packages
    • Sound Modules
    • Production & Groove
    • Keyboard Accessories
    • Music Software
  • More
    • Amplifiers & Effects
    • Folk & Traditional Instruments
    • Bass
    • Marching Band
    • iOS Devices
    • Lifestyle
Item# H74238
Similar Rupert Neve Designs Products | All Rupert Neve Designs Products

 
Rebate Available


Download Rebate
Rebates Available
View Rebates

0 Customer Reviews Write a Review
  • Print the following sections:

  $995.00
 

#H74238
also ships to:  product ships globally
Availability:In Stock, Ready To Ship!

Free Shipping!

The Woodwind and Brasswind Guarantee
  • Low Price Guarantee
  • 45 Day Return Policy
  • Ask Our Experts
 
Description
A fully controllable compressor/limiter with feed-forward/feedback modes, peak/RMS detection, and sidechain filter.
  • Fully controllable compressor-limiter with feed-forward / feedback modes, Peak / RMS detection and a built in side chain high pass filter.
    Sidechain high-pass filter at 250Hz to the VCA sidechain signal - lets bass through without dragging down mix
    8-segment LED meter for monitoring output level
    8-segment LED meter for monitoring gain reduction
    FF/FB button changes the detection from feed-forward to feedback
    RMS/Peak button changes the VCA detection from RMS (average) to a Peak-RMS hybrid
    Link switch engages link bus for stereo operation of two Portico 543s

Rupert Neve Designs Portico 543: 500 Series Mono Compressor
The Rupert Neve Designs Portico 543 Mono Compressor delivers the unobtrusive, musical-sounding dynamic control and brick-wall limiting made famous in the Portico 5043 to the 500 series format. The 543 features a fully controllable compressor-limiter with feed-forward / feedback modes, Peak / RMS detection and a built-in sidechain high pass filter. With an unrivaled heritage and a tremendous feature set, the 543 yields a combination of rich warmth, flexibility and precision that is sure to resonate in the ears of sound engineers the world over.

Built around Mr. Rupert Neve’s custom transformer designs, each 543 module encompasses individually controllable threshold, attack, release, makeup gain, ratio, side chain HPF, Feed-Forward / Feed-back selection and Peak/RMS detection modes. With the compressor inactive, the 543 may be used as a transformer-coupled, high-performance line amplifier, and two 543 may be linked for stereo operation as well. The chassis is built to standard 500 series specifications, with power and I/O provided by the rack.

How the Compressor Works
In order to control gain, a V.C.A. or Voltage Controlled Amplifier (or Attenuator) is used. There are many types of V.C. including the use of tubes, discrete and integrated solid state circuits, and naturally non-linear devices. Each one has its characteristic behavior that reflects sonically on the final performance, and gives it a character or signature that can be musically attractive or not! The Portico 543 makes use of a very accurate, low-noise, low-distortion V.C.A. having, essentially, no signature of its own.

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! 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 time frame that gain remains under the initial control, known as “release” or “recovery” and plays a large part in the way a compressor sounds.

Feed-Forward or Feed-Back?
The 543 also has the ability to switch between feed-forward and feed-back modes. If the V.C.A. Control voltage is taken from the 543 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.

In most of Mr. Rupert Neve earliest designs, feed-back detection controlling the VCA with a rectified voltage from the unit output was intrinsic to the musical dynamic response. However, the very nature of a feedback compressor limits the attack time of the compression circuit. To offer faster, more technically accurate response times, feed-forward detection was implemented on Mr. Rupert Neve’s more modern designs. With the FF / FB switch, both classic and modern VCA responses are available.

RMS or Peak?
One of the more unique features of the 543 is the new Peak / RMS mode also found in the Portico II Channel. This switch allows the VCA (voltage control amplifier) to respond to both RMS (Root Mean Square) and peak levels. RMS circuits are considered to better mimic the way the ears perceive apparent loudness, while peak circuits tend to directly respond to the waveform voltage which may be more of a concern for prevention of clipping and maximizing levels. In this case, peak mode uses a combination of both methods to get the best of both worlds, and avoids the drawbacks of each method on its own.

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. RATIO is sometimes referred to as “Slope” because when depicted on a graph, the slope of the graph representing Output versus Input, is what changes.

Ratio and Threshold are closely inter-dependent. If a RATIO as high as 40:1 has been set, and if the THRESHOLD is set at 0dBu, 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 0dBu – say at +14dBu, 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.

THRESHOLD control covers the Range from below -30dB to +22dBu. When THRESHOLD 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.

Attack Time
The ATTACK time is the time taken for the compression circuits to start compressing. A long ATTACK time allows short duration peaks to “escape” and go through uncompressed. This may cause overload on subsequent digital circuits. A very short attack time sounds un-natural and robs the signal of “life” by removing transients. Some transients are extremely fast and have little effect on the sound quality. Setting a long attack time often means that almost no gain reduction occurs because the transient is history (!) before compression has had time to operate. However, even the fastest circuits take time to operate which means that there is always some “Overshoot”. Small amounts of “Overshoot” are musically desirable – there are exceptions, of course.

Setting the right values of RELEASE and ATTACK is what compression is all about! Once the principles are understood a Compressor-Limiter such as the 543 provides a powerful tool that actually appears to enhance the dynamic range of a recording and so provide greater musical enjoyment.

Release / Recovery
The notes above explain how the 543 handles signals of constant amplitude such as pure tones. Real program signals, however, are continually changing in level. The way in which a compressor deals with actual program material depends upon the magnitude and duration of peaks in the program level. If the RELEASE TIME is set to be very short, a short duration signal will be compressed but the gain will return to normal very quickly, giving a fluctuating and un-natural sound known as “Pumping” when the background, or other signals, are forced up and down. The gain will also tend to follow the wave form of low frequency signals. RELEASE TIME should be set long enough for the gain to remain reasonably constant between each bass note or between speech syllables.

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

Peak - When engaged, the 543 uses a combination of peak and RMS (average) detection to determine level. When disengaged, it follows just RMS.

Side Chain High-Pass Filter - Introduces a HPF at 250Hz to the VCA side chain signal. This allows the compressor to disregard sustained low frequency content.

Ratio - Range from 1:1 to LIMIT (i.e. 40:1)

Threshold - Range from -30dBu to +20dBU

Attack Time - Range from 20mS to 75mS.

Release / Recovery Time - Range of RELEASE time is 100mS to 2.5Seconds.

Stereo Operation - When the LINK switch is engaged on two 543 modules and settings are approximately the same values, GAIN reduction on both channels will be the same to preserve stereo balance and position. This will work properly in link bus-enabled 500 series racks, or by hardwiring two 543 modules link busses together in non-compatible racks.

Ducking - When the LINK switch is engaged on two connected 543 modules, the signal passing through the first module may be used to control the amplitude of a second module. 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 "voice-over" announcement.

Meters - Two Peak LED METERS are provided that show OUTPUT LEVEL and GAIN REDUCTION. Output level meter covers the range from -10 to +22dBu and above which is regarded as overload. REDUCTION is calibrated in dB covering the range +1 to 22dBu, reading from right to left,

Order today with the no-risk assurance of our Total Satisfaction and Low Price Guarantees!

  • Gain range: Continuously variable from 6dB to +20dB
    Threshold range: Continuously variable from 36dB to +22dB
    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 Feedback VCA control
    Maximum output level (balanced and floating transformer output maximum output from 20Hz to 40kHz) +23 dbu

    Total Harmonic Distortion and Noise:
    - @ 1kHz, +20 dBu output level, no load

    - Main Output, compressor bypassed: Better than 0.0006%

    - Main Output, compressor engaged: Better than 0.02%

    Noise (measured at main output, un-weighted, 22Hz-22kHz, terminated 40 Ohm): With gain at unity, compressor disengaged: better than 103dBu; with Gain at Unity, Compressor engaged: better than 92dBu
    Frequency Response: Main output, unity gain @ 150 kHz -3dB
    Crosstalk (measured channel to channel): Better than 90dB @ 15kHz
    METERS: Monitor INPUT LEVEL and GAIN REDUCTION

Media/Manuals
Customer Reviews
 
You must be signed in to write a review. Please click here to sign in.
Price Guarantee
Seen a lower price for the Rupert Neve Designs Portico 543: 500 Series Mono Compressor? Fill out this form and we'll BEAT IT*.
(US Currency)      
     
 
   

Attachment
Select File 5mb limit

* Price guarantee valid on all new in-stock merchandise sold by an authorized U.S. Dealer. Guarantee does not apply to discontinued, blemished, damaged, closeout, open box, refurbished or auction items. You will be contacted via email shortly after submission of request.


Instant SSL Certificate Secured
BizRate Customer Certified (GOLD) Site