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Rupert Neve Designs 2U Channel Strip with Mic Pre Compressor EQ and Texture   

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Rupert Neve Designs

Powerful channel strip with EQ and compression.

For recording and mixing engineers, the greatest challenge will always be to capture and transform disparate 2-D elements into an engrossing 3-D vision that elicits the same raw emotions and compelling vibrance as the live performance. With the Portico II Channel, every possible attention has been paid towards producing the most accurate, sweet-sounding audio topologies, while enabling engineers with the tools they need to boldly shape or fine tune tracks to the limits of their imaginations.

The Portico II Channel was created using the high voltage topologies from the 5088 to create a channel strip with the ultimate sound quality. Comprised of a fully-featured mic preamplifier, 4-band EQ, compressor-limiter, “texture” control and level metering, the Portico II Channel includes a bevy of new features including; Variable Silk with Texture control, a fully tunable “de-esser”, multiple VCA filtering and detection options, a transient-optimized swept HPF and parallel compression blending. With its simple yet powerful topologies and extensive feature set, every element of the Portico II: Channel is geared towards empowering recording artists to realize these visions.

Input Section
Input signals may be derived from any of three sources; Microphone, Line or DI. The Microphone input has a 10K Ohm non-reactive input resistance that handles a full 26dBu signal without the need for a pad. A primary Gain control provides 66dB of gain in 6dB increments for easy recall with a +/- 6dB Trim for fine adjustment. A transient-optimized HPF variable from 20-250Hz is included. Additionally, a 48V Phantom Power switch, Phase Inversion, Signal Present indicator and a Mute switch are included. The pre-amp is a TLA non-reactive design that precludes the loading of microphones with limited driving capability and which maintains a 2 dB noise figure over a wide range.

Texture
One of the key developments in the Portico II Channel is the new Texture section. Building on the "Silk" mode found in the original Portico Series mic preamplifiers, Texture is designed to adjust the actual amount of musical harmonic content from the source material – in effect, providing countless tonal options in one device. The texture section can vary from barely audible to dramatic, all controlled by a single knob. With that said, we have taken great care to ensure that the musical integrity of source material itself will not be compromised by these harmonic controls – these are not to be confused with controls from other manufactures that may "incinerate", "demolish" or "destroy" source material – and we believe they can be confidently used to fit the personality of any song, instrument or engineer.

Equalizer
The EQ topologies in the 4-Band Equalizer of the Portico II combine the best-loved sound of several classic designs, but are also capable of extremely fine surgical adjustments as well as dramatic boosts or cuts. By default, the EQ section follows the mic preamplifier and HPF and precedes the compressor, but this sequence may be reversed by engaging the Post Comp switch.

The Low Shelf has an independent engage switch, Classic Peak / Accelerated Shelf selection, with +/- 12dB level adjustment, and selectable turnover frequencies of 35, 60, 100, and 220 Hz. The Fully Parametric LMF and HMF bands have a joint engage switch, providing +/- 12dB level adjustment, continuously variable "Q" from 0.7 to 5 and continuously variable frequency ranges from 70 to 1.4kHz and 700Hz to 14kHz. In addition to its standard capabilities, the HMF band can also be used to precisely tune the new De-Esser circuit.

The De-Esser can be varied from off to full effect, and uses the Frequency and "Q" controls to tame harsh sibilance in vocals and instruments with an independent high-mid limiter. Even when the De-Esser is on, the EQ level may still be used. The High Frequency shelf has independent engage switch, Classic Peak / Accelerated Shelf selection, +/- 12dB level adjustment, and selectable turnover frequencies of 4.7, 6.8, 12, and 25kHz. When two Portico II Channels are used side by side, the EQ section can also excel at stereo material.

Compressor
A further array of tools are used to craft dynamic response. The Portico II’s compressor section is exceptionally flexible. Like the Portico 5043, the VCA compressor has a choice of Feed-Forward / Feed-Back modes, either providing a transparent modern response (FF) or a smoother, more vintage response (FB). Along with FF/FB modes, there are also 1:1 to 40:1 ratio controls and threshold from -30dBu to +20dBu, together with Attack from 20 to 75ms (.1 ms in Peak mode), Release from 100ms to 2.5s, and Make-Up Gain from 0 to 20dB. A link switch is provided to link the compressor action with that of an additional connected Portico II Channel for stereo processing.

FEATURES
  • Transformer balanced line input
  • Direct input
  • Mic preamp
  • High-pass filter
  • LF, LMF, HMF, HF EQ
  • Compressor with mode select
  • Texture control

The Neve sound. Order today.

 

2U Channel Strip with Mic Pre Compressor EQ and Texture Specifications:

Frequency Response:
  • Main Output, no load
  • –3 dB @ 2 Hz
  • –3 dB @ 160 kHz
Noise:
  • Measured at Main Output, unweighted, 22Hz-22kHz,
  • Terminated 150 Ohms.
  • With gain at unity better than –92 dBu
  • With gain at 66 dB better than –56 dBu
  • Equivalent Input Noise better than –123 dBu
Gain:
  • Unity to +66dB in 6 dB steps,
  • Trim continuously adjustable from –6dB to +6dB
Line Input:
  • Trim continuously adjustable from –6dB to +6dB
  • Maximum Output Level:
  • Maximum output from 20 Hz to 40 kHz is +25 dBu.
Phantom Power:
  • 48 Volts DC +/- 1%
  • Total Harmonic Distortion and Noise:
  • @ 1kHz, +20 dBu output: Better than 0.002%
  • As above, Silk Engaged: Better than 0.2% Second Harmonic
  • @ 20Hz, +20 dBu out Better than 0.004%
  • @ 20Hz, +20 dBu out Better than 0.020%
  • IM Distortion: Better than 0.002%
  • Slew rate Better than 4 V/uS
High Pass Filter:
  • Frequency: Continuously Variable from 20 Hz to 250Hz
  • Slope: 12 dB/Octave Bessel
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