Rupert Neve Designs Portico 5024 Quad Microphone Preamp

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  • Incorporating four channels of renowned preamplification, independent silk controls, two channels of DI inputs, and an M-S Decoder into a 1U enclosure, the 5024 is a workhorse equipped to enhance the front end performance of any digital or analogue recording system. Each channel of the Portico 5024 is based around the custom transformers and class-A circuitry found in the best-selling 5012.
    In addition to 72dB of gain, the 5024’s mic pres include individually selectable phase, mute, phantom power, a selectable frequency high pass filter, and the Silk circuit which yields the rich warmth and presence of the renowned classic designs. Channels 1 & 2 of the 5024 feature a high-Z input designed for instrument level sources. Channels 3 & 4 feature an M-S switch, which enables Mid-Side decoding without the use of multiple console channels.

    Rupert Neve Designs Portico 5024 Features:

    • 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.
    • M-S
      The M-S button engages Mid-Side decoding on channels 3 & 4. Channel 3 level controls the mid signal, and channel 4 level controls the side signal.
    • Instrument Inputs
      Balanced or unbalanced Hi-Z input for instruments using the Mic Pre’s gain circuitry.
    • 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 below 30 or 90 Hz can be attenuated at 12dB / Octave, 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

    Rupert Neve Designs Portico 5024 Specifications:

    • Mic Pre
    • 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: Selectable either 30Hz or 90Hz
      Slope: 12 dB/Octave Bessel