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.
Rupert Neve Designs Portico II Channel Features:
Texture Continuously variable control for Silk and Silk+ modes allows the engineer to fine tune the harmonic ratio and tonality of the channel.
Post Comp Moves the EQ after the Compressor
De-Esser Tunable with the HMF EQ bandwidth reduction, the multi-variable De-Esser can be used to soften harsh sibilance in voices and instruments
Blend A parallel matrix providing continuously variable control to mix compressed and uncompressed signals
FF/FB Changes the VCA Detection from a forward feed design (fast, more accurate attack & release) to a feed back design (smoother, more musical response)
RMS / Peak Overrides the attack setting, using a combination of peak and RMS detection set below 1ms
Side Chain Send/Return External compressor side chain send and return on 2 x TRS jacks. The send is always active and normalled to the return (NOTE: If the send and return are connected to a patchbay, the send should be normalled or connected to the return by default, as the compressor will not trigger if the return has no signal)
Meters Dual 16 point peak meters display compressor (not de-esser) gain reduction and output levels
High Pass Filter Continuously variable from 20-250Hz
HPF to Side Chain Uses the HPF in the Compressor Side Chain
Gain Provides 66dB in 6dB steps
Trim Continuous +/- 6dB level contro
Phase Inverts Reverses the polarity of the signal
Phantom Power Selectable 48V for powering microphones
DI Discrete FET input for Hi-Z instruments
Line Input Selectable +4 balanced input
LF EQ +/-15dB adjustment at 35, 60, 100, and 220 Hz, independent LF engage, selectable classic bell or accelerated shelf curves
LMF EQ +/-15dB adjustment from 70 to 1.4KHz, with a continuous “Q” from .7 to 5., engaged with the MF switch.
HMF EQ +/-15dB adjustment from 700Hz to 14KHz, with a continuous “Q” from .7 to 5., engaged with the MF switch.
HF EQ +/-15dB adjustment at 4.7, 6.8, 12, and 25kHz, independent HF engage, selectable classic bell or accelerated shelf curves
All EQ In Enables all EQ Bands (Individual bands must still be engaged)
Comp In Engages Compressor section
Rupert Neve Designs Portico II Channel 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