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Rupert Neve Portico 5012-H Duo Mic Pre-Amp

$2,900.00 $2,700.00

The Rupert Neve Designs Portico series of preamplifiers and analogue audio processors constitute a range of building blocks that may be used independently or in conjunction with one another to provide key elements traditionally included in large format analog consoles.

Description

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The Rupert Neve Designs Portico series of preamplifiers and analogue audio processors constitute a range of building blocks that may be used independently or in conjunction with one another to provide key elements traditionally included in large format analog consoles.

High-quality consoles can provide a powerful array of audio tools, but your actual choice is limited by decisions the console designer has already made on your behalf – and by the cost of providing a large number of identical (and possibly redundant) modules. The Portico Range presents a means of interconnecting very high quality modules that give you those precise features that you need, when and where they are wanted in the chain, without any such redundancy.

The Portico 5012 is a dual channel mic pre featuring Neve’s custom input and output transformer designs. In addition to individually selectable phase, mute, phantom power and a fully sweepable high pass filter, the 5012 incorporates a “Silk” circuit which yields the rich warmth and presence of the renowned classic designs.

Microphone Input

The microphone input is balanced but not floating, being a variant of an instrumentation amplifer using a “Transformer-Like-Amplifier” (T.L.A.) configuration with a toroidal Common Mode Rejection Low Pass Filter that excludes frequencies above 150 kHz. The T.L.A. is followed by an actual input transformer permitting a full +25 dBu input signal to be handled at unity gain without an input pad over the whole audio spectrum. This combines the advantages of both an “Electronically Balanced” and true transformer input. When the Phantom voltage is switched off, this input serves as a very high quality line input with an impedance of 10,000 ohms.

Low Noise, Low Distortion Operation

Much care was given in designing the 5012 to produce as little noise and non-harmonic distortion as possible.  Carefully implemented signal paths and Class A operation are a large part of the 5012?s sweet, whisper quiet performance.

Silk

Much could be written about this feature, suffice to say, that it gives a subtle option to enhance sound quality in the direction of vintage modules. The Silk button reduces negative feedback and adjusts the frequency spectrum to provide a very sweet and musical performance. We suggest you try it and make your own judgment.

Level Meter

-30 dBu to +22 dBu With reference to the output

Mute

Cuts of the output signal post metering and pre Buss Output.  Be sure to mute the outputs before engaging phantom power.

High Pass Filter

The High pass filter is a valuable aid in any signal chain but particularly so in a microphone preamplifier. Signals between 20 and 250 Hz can be attenuated, leaving the range above this unaffected. This gets rid of building rumble, air handling motor hum etc.

Phantom Power

Provides 48V phantom power to microphones

Buss Output

The To Buss output is unbalanced and has a high impedance output. It is intended for use with the Portico Buss Amp/Monitoring modules. A TRS patch cord is used to connect the 5012 Buss output to one of these bussing modules. The Monitor connection is derived pre mute on the 5012 and will produce a signal at the output of the buss modules that is equal in level to that at the 5012 output. The Monitor output cannot be used for any other purpose.

Phase Inverts

Flips the phase of an incoming source 180 degrees

Specifications:

Input:
Balanced, using   “Transformer-Like-Amplifier” (T.L.A.) with toroidal Common Mode Rejection Low   Pass Filter that excludes frequencies above 150 kHz.
The T.L.A. is followed by an   actual input transformer permitting a full +26 dBu input signal to be handled   at unity gain without an input pad over the whole audio spectrum.
Combines the advantages of both an   “Electronically Balanced” and true Transformer input.
When the Phantom voltage is   disabled, this input serves as a very high quality Line Input.
Input Impedance:10,000 Ohms + or 20%
Noise: 
Measured at Main Output:Input terminated with 150 Ohms.
Measured over band limited   22Hz-22kHz, Unweighted:With Gain at Unity:Better than 100 dBu.
With Gain at 66 dB:Better than 62 dBu
Equivalent Input Noise (E.I.N.)Better than 128 dBu
Frequency Response:
Main Output, no load:@ 10 Hz,0.2 dB
@ 160 kHz3 dB
Buss Output
@ 10 Hz0.2 dB
@ 160 kHz3 dB
High Pass Filter:
Swept Frequency continuously   variable from 20 Hz to 250 Hz.Slope:12 dB/Octave.
Gain:
Switched Gain from Unity to +66dB   in 6 dB steps.
Trim:
Continuously adjustable   potentiometer from 6dB to +6dB with reference to setting on the Gain Switch.
Maximum Output Level:
Balanced and Floating Transformer   Output from 20 Hz to 40 kHz: +25 dBu. (Clips at just over +26 dBu)
Mute:
Mutes Main Output only. (i.e.   Monitor remains Live)
Total Harmonic Distortion and   Noise:
Main Output@ 1kHz, +20 dBu output
level, no load:
Better than 0.001%.
(No high order Harmonics)
Silk Engaged:Approximately 0.2% Second Harmonic
Main Output@ 20Hz, +20 dBu output
level, no load:
Better than 0.01%.
Buss Output@ 1kHz, +20 dBu output
level, no load, measured at the output:
Better than 0.002%.
SILK:
The 5012 uses mainly single-sided   amplifier circuitry that excludes any possibility of crossover distortion.   The “SILK” button reduces negative feedback and adjusts the   frequency spectrum to provide a very sweet and musical performance.
Buss Output:
The Buss Output is designed to   feed other Portico Series modules with Buss Inputs.
Crosstalk:
Measured Channel to Channel:Better than 90 dB @ 15kHz.
Phantom Power:+48 Volts DC +/- 1%
Main Power Required: (From External Power Unit)Voltage Range,9 to 18 Volts DC.
Current consumption:@ 9VDC = 1.3 A typical
@12VDC = 1A typical
@15VDC= 800 mA typical
@18VDC= 650 mA typical
Rear Panel Power Connector:5.5mm X 2.1mm DC jack, Center   Positive