| Content | Rupert Neve Designs' Shelford Channel, over a half century in the making, is the definitive evolution of Mr. Neve's renowned 80 Series channel module technology, updated and refined for the contemporary studio. The Shelford Channel is fitted with Rupert's latest Class A transformer-gain mic preamp, the best-of-the-classics Inductor EQ from the Shelford 5052, a punchy diode-bridge compressor, the alluring analog textures of variable Silk saturation, a state-of-the-art dual-tap transformer output stage with massive headroom, and double the operating voltage of vintage designs. Offering rich tonal options for making audacious statements with your music, along with precision-detented controls for recall, the Shelford Channel delivers the authoritative sonic essence of classic Rupert Neve designs, along with modern versatility.
Input stage and transformer-gain mic pre
Rupert Neve's first new Class A, transformer-gain mic preamplifier in over 40 years makes its debut in the Shelford Channel. Rupert has spec'd this preamp with a direct-coupled transformer input; gain is provided by the custom transformer itself. The proprietary input transformer, and its meticulous integration with the surrounding Class A input amplifiers, plays an outsized role in the Channel's immediately recognizable sonics: punchy and creamy-smooth, with excellent isolation and vanishingly low noise.
The Shelford Channel's front-panel hi-Z instrument input uses the same discrete Class A field-effect transistor with transformer topology as Rupert Neve Designs' acclaimed RNDI; for gain, however, it utilizes the new RN4012 input transformer directly into the mic preamp. This design provides astonishing clarity on hi-Z sources, with substantial low-end weight and silky-smooth high frequencies. The DI also gives you a passive thru output to feed a guitar or bass amp.
- Mic-DI/Line: switches between microphone/direct injection input and line input
- GND Lift: disconnects the audio signal ground from chassis earth
- Signal LED: green indicates Signal Present; red indicates imminent input stage clipping
- Mic Gain: 12-way precision rotary, controls gain from 0dB to 66dB in 6dB steps
- Trim: rotary switch provides further continuous gain adjustment of +/-6dB
- 48V: switch engages phantom power on the mic input
- Phase: inverts the polarity of the signal path (illuminates when engaged)
- HPF Freq: engages a 12dB/octave highpass filter, variable from 20Hz-250Hz
The best-of-the-classics inductor EQ
The Shelford Channel's EQ section is a 3-band, custom-tapped inductor circuit containing Rupert's favorite bands from his vintage equalizer designs. The low-frequency band is primarily based on the 1064 — acclaimed for its creamy, resonant bass. Unlike the 1064, though, the Channel gives you added dimension, punch, and control over your low end by letting you use the LF band as either a peaking or a shelving filter. The midrange band is based on the venerable 1073 and is perfect for sweetening instruments and vocals while nudging them forward in a mix. "Proportional Q" response also makes it ideal for attenuating problem frequencies. The high-frequency band is a hybrid design with the best of vintage and modern attributes. It should be noted that this EQ is in no way a clone; it's a decidedly modern design using components and techniques that simply did not exist in the 1970s — for instance, the use of capacitor-based topologies to achieve sonic richness and enhanced control.
- EQ In: engages all EQ frequency bands except HPF
- LF: adjusts up to 15dB of boost/cut at the selected low frequency
- Low Freq: 4-position rotary switch for selecting LF band corner or center frequency
- LF Peak: selects LF shelving (out) or peaking (in) mode
- Mid Hi Q: selects between a mid-band resonance of 2 (out) or 3.5 (in)
- Mid: adjusts up to 15dB of boost/cut at selected mid frequency
- Mid Freq: 6-position rotary switch selects center frequency of the midband EQ stage
- HF Peak: selects HF shelving (out) or peaking (in) mode
- 8K/16K: selects between an 8kHz (out) or 16kHz (in) center or corner frequency for HF band
- HF: adjusts up to 15dB of boost or cut at selected high frequency
The Super Diode-bridge Compressor
Like the Shelford Channel's inductor EQ and transformer-gain microphone preamp, the diode-bridge compressor/limiter is based on the topologies found in vintage Neve designs such as the 2254. It improves, however, on the early designs by the inclusion of full-wave rectification and a bevy of new control features. Although Rupert's vintage diode-bridge compressors were prized for their warm, punchy response, they were somewhat compromised by imprecise controls, attack-time inflexibility, low headroom, and high noise. The Shelford Channel's Super Diode-bridge Compressor delivers the attitude-packed, "in your face" sound of those classics, but with modern precision and flexibility — which makes it ideal on any source. Full Side-chain and stereo Link features are provided.
- Side Chain Insert Jacks (rear-panel): for fine tuning of compressor operation
- Comp In: engages the Channel's compressor-limiter section
- Threshold: sets level where the compressor "kicks in"
- Ratio: sets compression slope from 1.5:1 (minimal) to 8:1 (heavy)
- SC Insert: inserts rear-panel sidechain insert jacks into sidechain signal path
- HPF to S/C: routes highpass filter into the circuit that compressor uses to determine level
- Gain: for adding make-up gain to compensate for level attenuation lost to compression
- Timing: 6-position rotary adjusts attack/release speed of the compressor
- Link: links the sidechain control of multiple units for ganged or stereo operation
- Pre EQ: changes the order of compressor in the circuit chain
- Blend: mixes the dry and compressed signal for handy parallel compression
- Fast: speeds up both attack and release of the selected compressor time constant
Dual-tap transformer output
The Shelford Channel's output stage serves up the inimitable sound of Rupert Neve's classic designs while providing far more tonal versatility. The dual-tap output for the RN2042 square-core output transformer provides both high- and low-headroom outputs without compromising performance. The high-headroom tap takes advantage of the Shelford's higher-voltage design, delivering a pristine sound without non-linear output-stage coloration at high levels. The low-headroom tap, on the other hand, lets you drive the full voltage range of the Channel to accentuate this non-linear harmonic content — without clipping most pro interfaces. For vocals, drums, guitars, bass, and other instruments, this output lets you hit the transformer's sweet spot, which can inject life into a recorded performance in a way that other effects cannot.
The Silk and Texture controls
The Shelford Channel is packing a secret weapon the classics never had: its output transformer features the Silk Red/Blue and Texture controls from the Portico II Series that let you tailor the harmonic content and tonality of the output stage. By engaging these controls and sufficiently driving your output, you can dial in delectable 2nd- and 3rd-order harmonic distortion (that's the good kind) and saturation of the output transformer, imbuing your tracks with juicy rich thickness (think: 1073 on steroids) — with no danger of overloading the output stage. The Silk Red mode emphasizes harmonic content generated by the source's high frequencies; Blue mode, conversely, works off the low frequencies. The Texture knob controls the amount of added harmonic content. Disengage Silk, and your output is pristine and modern, while retaining Rupert's bigger-than-life transformer sonic signature.
The magical sound of Neve
Rupert Neve is an audio legend whose electronics designs defined the golden age of analog. Those of us at Sweetwater who have had the privilege of working on a Neve 8078 or its predecessors can attest to the fact that Neve's Series 80 consoles were indeed the pinnacle of hand-wired analog mixing desks. Mr. Neve has remained at the forefront of audio-circuit innovation for over half a century, and his current company, Rupert Neve Designs, continues to advance the state of the art with cutting-edge products that sound incredible and intelligently address the challenges of the digital age.
Rupert Neve Designs Shelford Channel Features:
- The definitive evolution of Rupert Neve's renowned 80 Series channel module technology
- A complete channel strip that delivers the essence of classic designs, along with modern versatility
- Input stage and transformer-gain mic pre
- Front-panel hi-Z direct input
- Best-of-the-classics inductor EQ
- Super Diode-bridge Compressor
- Dual-tap transformer output
- Silk and Texture controls
| Discover the PM7000N, the first Marantz fully discrete, current feedback integrated Hi-Fi amplifier with HEOS Built-in technology. The ideal choice for audiophiles that require Marantz musical sound and music streaming, the PM700N includes high-grade audio components, current feedback HDAMs, a toroidal transformer, and a high-speed instantaneous current power supply. The versatile PM7000N features multiple analog and digital inputs, and decodes digital audio files ALAC, FLAC and WAV lossless files up to 24-bit/192-kHz — plus, DSD 2.8MHz and 5.6MHz tracks for high-resolution listening. Stream your favorite music wirelessly, and control the amplifier with leading voice agents Apple Siri, Google Assistant, and Amazon Alexa.
Features
- Power to suit your audio preference: 2ch fully discrete current feedback integrated Hi-Fi amplifier; 60W per channel (8-ohm, 20Hz – 20kHz)
- Wide range of connectivity:
- Four analog inputs, one analog output, one coaxial input, two optical digital inputs and one USB-A for high-resolution audio files
- Marantz proprietary HDAM-SA3 circuit: Wider dynamic range with lower distortion for the output stage
- Flexibility for all configurations: Tone control to tune sound to your exact specifications and dedicated subwoofer output for evenly dispersed bass, no audible peaks or dips
- Newly designed electric volume circuit: Use the latest volume control IC to realize better channel separation, dynamic range, and distortion-reduction
- Play vinyl with exceptional clarity: Integrated phono input with newly designed FET input stage to improve signal purity and sound
- Premium Marantz SPKT-1+ speaker terminals: Improved connection to speakers
- Stream music from your favorite sources: Play songs from TuneIn, Internet Radio, Pandora, Spotify, SiriusXM, Amazon Prime Music, TIDAL and more via AirPlay 2, Bluetooth and the HEOS app (music streaming services may vary by region)
- Speak your commands: Supports Amazon Alexa, Google Assistant and Apple Siri voice agents for seamless voice control
- High-performance, high-resolution audio playback: Ability to decode high-resolution audio ALAC, FLAC and WAV lossless files up to 24-bit/192-kHz — plus, DSD 2.8MHz and 5.6MHz tracks for high-resolution listening
- Built-in Bluetooth and Wi-Fi with 2.4GHz/5GHz dual band support: Improved network stability even in Wi-Fi crowded homes
- Works with your TV remote: Program the PM7000N to work with your TV remote and easily adjust volume up, volume down, mute and source selection
Specifications
Inputs: RCA line x 3, RCA MM phono x 1, digital coax x 1, optical x 2, USB A x 1, Ethernet
Phono input sensitivity: 2 mV @ 47 kOhm
Phono SNR: 87 dB
Outputs: Tape out, subwoofer out, headphone out, speaker A and B
Power output (8 ohm / 4 ohm): 60 W / 80 W
Damping factor: 100 and over
Dimensions: 17.3" x 14.9" x 4.9"
Weight: 23.8 lb
| Simple and elegant, the 5211 is the natural evolution of what is arguably the most famous gear in audio recording history: Rupert Neve’s microphone preamps.
With two channels of the classic tone you know and love, 72dB of gain, sweepable high-pass filters for precise control, and the power of Mr. Rupert Neve’s dual-tap transformers with variable Silk saturation, the 5211 delivers a versatile, flattering, and uncompromising front end for any signal path. In short, it’s everything a mic preamp should be.
What is Silk?
One of the key features of the 5211 is the Silk / Texture control. The Silk circuit was initially developed for the original Portico series mic preamplifiers, and was only a single switch – on or off – that added a specified amount of musical, pleasing harmonic saturation to the unit’s output stage.
Taking this concept one step further, the Texture knob is designed to adjust the actual amount of harmonic content from the source material.
So how does it work? By reducing negative feedback across the output transformer and adjusting this feedback’s frequency response, the Silk / Texture circuit provides the sweet, musical saturation found in Rupert’s legendary vintage designs – but with complete & precise control over the amount of classic tone you want. And when the level is driven to the edge of its headroom, the Silk effect is multiplied.
Why a -6dB Output?
Complementing the Silk circuit is the custom-designed output transformer from the renowned Shelford Channel, which uses Rupert Neve Designs’ unique dual-tap output topology. This offers both full-headroom (+26dBu) and -6dB outputs, allowing the engineer to drive the unit fully into classic transformer saturation without clipping converters and other devices later in the chain.
Unlike the Shelford Channel, which uses a mic input transformer for a more vintage topology, the 5211’s input is fully transformerless, maximizing signal clarity direct from the microphone. Combined with the more extreme saturation from both variable Silk and the custom output transformer’s lower-headroom tap, the 5211 is capable of producing tones ranging from thick & warm to breathtakingly delicate & clear. It’s the best of old and new alike.
MAXIMUM INPUT LEVEL
@ 1 kHz: +26 dBu
NOISE
- Un-weighted, 22 Hz - 22 kHz, 150 Ohm input termination
- Line Out (Unity Gain): -104 dBV, -101.9 dBu
- -6 dB Line Out (Unity Gain): -109 dBV, -107 dBu
- Line Out (+30 dB Gain): -98 dBV, -96 dBu
- Line Out (+66 dB Gain): -66 dBV, -64 dBu
EQUIVALENT INPUT NOISE (EIN)
-128 dBV, -126 dBu
FREQUENCY RESPONSE
-0.2 dB at 10Hz, -2.9 dB at 120kHz
MAXIMUM OUTPUT LEVEL
- 1 kHz: +26.5 dBu
- 20 Hz to 30kHz +26 dBu
TOTAL HARMONIC DISTORTION AND NOISE (WITHOUT SILK)
- 1 kHz, +20 dBu O/P level, no load 0.0015%, typical
- 20 Hz, +20 dBu O/P level, no load less than 0.02%, typical
TOTAL HARMONIC DISTORTION AND NOISE (WITH SILK ENGAGED)
- TEXTURE @ min, 100 Hz, +20 dBu O/P level, no load: 0.03%, mostly 3rd harmonic
- TEXTURE @ max, 100 Hz, +20 dBu O/P level, no load: 1.5%, mostly 2nd harmonic
POWER CONSUMPTION
35 W (Max)'
PRODUCT DIMENSIONS
19” W x 1.75” H x 7 ⅝” D
SHIPPING WEIGHT
11 lbs. (5 kg)
SHIPPING DIMENSIONS
23” W x 15” D x 7” H (58.4cm W x 38.1cm D x 17.8cm H) | If there’s one style of preamp that professional engineers would unanimously agree has defined the tone of pop/rock records for decades, it would most definitely be the venerable '73-style of mic pre. '73-style preamps have been massively used in recording and live applications for many years and are still considered to be the “Holy Grail” of preamp choices today. The Warm Audio “WA73 Family” consists of single and dual channel '73-style preamps (with & w/out EQ), that each pay careful homage to British audio history.
When we at Warm Audio decided to release the WA73-EQ it was imperative that it met vintage expectation in both design and performance. The tone and sweet character that vintage '73-style mic preamps impart is so unique and familiar, that we had only the pure desire to release sonically accurate reproductions. After years of R&D, intense research and countless hours of auditioning, the WA73-EQ was born!
The WA73-EQ is a “Desert Island” boutique preamp, but it can also be classified as a studio and live work-horse. Classic '73-style preamps are known for being versatile tools that work with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA73-EQ equally shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through. With 80dB of gain and a fully discrete Carnhill Transformer balanced signal path, there’s no recording, mixing or engineering task that the WA73-EQ can’t handle.
Enthusiasts unequivocally get excited about the components used in classic '73-style British preamps. The signal transformers are a common topic of conversation. Vintage units used various versions of transformers throughout the years, but the most coveted were the earliest versions. These are regarded as the most desirable choice due to their fluid and forgiving nature. They saturate sweetly when pushed, and have been known to make engineers cry when they hear how beautiful their mixes sound through them!
Warm Audio worked closely with Carnhill Transformers of Cambridgeshire, UK, to design faithful reproductions of these most coveted, early version transformers. We at Warm Audio have not yet heard a modern day '73-style preamp sound as sweet and musical as does our WA73-EQ with these beautiful custom Transformers.
An important part of the classic British circuits not often discussed are the different styles of capacitors and output transistor used. We found it important to maintain integrity to the original design by using tantalum and polystyrene capacitors in the signal path and an output transistor choice that is much smoother in the high gain settings than what is typically found in modern '73-style reproductions.
A great sounding '73-style circuit should be just as reliable as it is great sounding. The complex dual concentric switch potentiometers in the EQ sections of the WA73-EQ are made in the UK by Blore Edwards who manufacture military spec switches and potentiometers. The use of Blore-Edwards components is no small inclusion for a '73-style preamp-eq in this price range.
Classic '73-style preamps were often hand-wired and so is the WA73-EQ! Guru’s claim that a portion of the sought after classic British tone can be attributed to the hand-wired nature of the build. The WA73-EQ is hand-wired and hand assembled, including the pcb components that are all populated by hand.
- SINGLE CHANNEL, CLASS A, '73-STYLE BRITISH MICROPHONE PREAMP WITH EQ
- UK MADE CARNHILL TRANSFORMERS
- UK MADE - BLORE EDWARDS EQ DUAL-CONCENTRIC SWITCH POTENTIOMETERS
- HAND WIRED, HAND ASSEMBLED
- 80DB OF GAIN - RESISTOR STEPPED GAIN SWITCH
- FULLY DISCRETE
- TONE BUTTON - CHANGES INPUT TRANSFORMER IMPEDANCE FOR VARYING TONE
- POLARITY SWITCH
- 48V PHANTOM POWER
- INDUCTOR BASED 3 BAND EQ
- LOW BAND BOOST/CUT - 35, 60, 110, 220 HZ
- MID BAND BOOST/CUT - 360, 700, 1600, 3200, 4800, 7200 HZ
- HIGH BAND BOOST/CUT - 10, 12, 16 KHZ
- ADDITIONAL HIGH BAND FREQUENCY EQ POINTS ADDED (COMPARED TO VINTAGE 1073)
- 4 POSITION INDUCTOR BASED HIPASS FILTER - 50, 80, 160, 300 HZ
- XLR MIC INPUTS (FRONT & BACK)
- LINE LEVEL TRS INPUT
- TS SEND/RECEIVE INSERT JACKS
- XLR & TRS LINE LEVEL OUTPUTS
- DIRECT IN, INSTRUMENT INPUT
- OUTPUT CONTROL
- LED LEVEL INDICATION
- FREQ RESPONSE 20HZ - 20KHZ +/-.5 DB
- 19" RACK MOUNTABLE
- INTERNAL IEC 115V/230V POWER INLET
| Firmly rooted in six decades of console design experience, the 5057 Orbit gives your mixes the legendary tonality, power, and wide-open soundstage that only Rupert Neve’s class-A analog summing can provide. Coupled with Rupert’s famous custom audio transformers and Silk Red & Blue circuitry for variable harmonic saturation, the Orbit launches sterile in-the-box mixes to new heights of tone, depth and clarity – without compromising the recallable convenience and repeatability of your DAW-based workflow.
When you push a mix buss and output transformers towards saturation, the non-linear, musical harmonics that occur are what truly glue a recording together and bring it to life.
Rather than using an external summing solution that offers little more than an ultra-clean representation of the in-the-box experience, the Orbit provides the extraordinary richness, harmonic complexity and depth that only a Rupert Neve console can bring to your mixes.
The Orbit utilizes a highly custom output transformer configuration originally developed for the acclaimed Shelford Channel, which provides both a Main Output and a -6dB Output – the latter of which enables you to fully drive the Orbit to achieve more transformer harmonics without clipping the next device in the chain. This unique transformer drive is a hallmark of the sound of Rupert Neve throughout the years – and the sound of countless classic hit records.
Classic Sounds on Demand
Every mix demands its own treatment. In addition to the choice of outputs, the continuously variable Texture control with Silk Red and Silk Blue modes gives you complete control over the harmonic density and tonality of your mix – or lets you keep it utterly pristine and uncolored.
The Silk Red mode accentuates transformer saturation in the high and high-mid frequencies to amplify the vibrant midrange harmonics associated with Rupert’s vintage equipment, while Silk Blue accentuates saturation of the lows and low-mids to add thickness and weight to any source – especially useful for “thin-sounding” mixes. Unlike EQ, these Silk & Texture controls saturate the output transformers, and add highly musical harmonics to the source material according to the amount of Texture applied.
Drive the mix buss hard, choose your Silk flavor, and crank the Texture knob for a rich, saturated, vintage vibe – or disengage Silk entirely for clear, wide-open sonic beauty. The choice is yours.
Build your Dream
While the Orbit is an extremely effective tool on its own, multiple units can be combined through the Buss Link for a higher channel count. The 5057 Orbit can also be used as a building block in an expandable summing system utilizing the 5059 Satellite for flexible summing & routing, and the 5060 Centerpiece for additional mixing and monitoring features.
These units create the core of a world-class analog modular console system rivaling any traditional large-scale studio setup.
Channel Separation and Accuracy
With precisely fixed channel levels and accurate mix buss attenuation via high-quality stepped switching, the Orbit’s purist signal path has vanishingly low crosstalk, and channels matched to within +/-0.1dB. This provides your mixes with the widest and most accurate stereo image, the greatest depth, and the most direct signal path, allowing you to hear every single detail of your mixes.
DAW Based Recall without Compromise
Frequent recalls can be a challenge for modern mix engineers. The Orbit’s elegant simplicity and fixed level accuracy provides rapid, repeatable DAW-based recall from mix to mix, while adding the rich, unrivaled sound quality of Mr. Neve’s class-A transformer-coupled mix buss.
INPUT IMPEDANCE
16K Ohm
FREQUENCY RESPONSE
- 10 Hz to 50 kHz: +/- 0.1 dB
- 150 kHz: -3 dB
NOISE
- From 22 Hz - 22 kHz.
- -90 dBu typical
MAXIMUM INPUT LEVEL
@ 1 kHz: +26 dBu
MAXIMUM OUTPUT LEVEL
@ 1 kHz: +26 dBu
THD+N%
- From 22 Hz - 22 kHz.
- 0 dBu @ 1 kHz: 0.003%
- +20 dBu @ 1 kHz: 0.0006%
CROSSTALK
- 1 kHz: -103 dBu
- 10 kHz: -93 dBu
PRODUCT DIMENSIONS
19” W (48.3 cm) x 9” D (22.9 cm) x 1.75” H (4.4 cm)
SHIPPING DIMENSIONS
24” L (61 cm) x 13” W (33 cm) x 4” H (10.2 cm)
SHIPPING WEIGHT
10 lbs (4.5 kg) | Comprised of a rugged, portable chassis with world-class preamp, compressor and DI circuits as well as two channel operation, Vari-phase, Silk and DI/mic blending capabilities, the Portico 5017 is an innovative and powerful tool for recording or live performance.
FREQUENCY RESPONSE
- Main Output, no load.
- -0.2 dB @ 10 Hz
- -3 dB @ 160 kHz
NOISE
- Measured at Main Output, unweighted, 22 Hz - 22 kHz. Terminated 150 Ohm.
- With gain at unity better than -100 dBu
- With gain at 66 dB better than -62 dBu
- Equivalent Input Noise better than -128 dBu
NOISE FACTOR
1.5 dB
HIGH PASS FILTER
80 Hz, 12 dB/Octave Bessel
MAXIMUM OUTPUT LEVEL
Maximum output from 20 Hz to 40 kHz is +23 dBu
TOTAL HARMONIC DISTORTION AND NOISE
- @ 1 kHz, +20 dBu output: Main Output: Better than 0.001%
- @ 20 Hz, +20 dBu output: Main Output: Better than 0.002%
SILK ENGAGED
Better than 0.2% Second harmonic
COMPRESSOR
THRESHOLD
Continuously Variable from -20 dBu to +10 dBu
RATIO
Fixed at 2:1
ATTACK & RELEASE
- FAST MODE: Attack 40ms , Release 40ms
- SLOW MODE: Attack 100ms , Release 350ms
PHANTOM POWER
+48 Volts DC +/- 1%
POWER REQUIREMENTS
12VDC is optimal voltage, but 9-15VDC is acceptable
CURRENT CONSUMPTION
- @ 9VDC Current is 1.3 A typical: Power = 11.7W
- @ 12VDC Current is 1.0 A typical: Power = 12.0 watts
- @ 15VDC Current is 800 mA typical: Power = 12.0 watts
DIMENSIONS
7.5″ (deep) x 6.5″ (wide) x 2″ (high) |
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