The Portico 511 Mic Preamp from Rupert Neve Designs is a single channel, transformer-balanced microphone preamp that brings the features and performance of the full-sized Portico outboard rack units to the 500-series format.
The 511 provides 66dB of gain, and a +/- 6dB Trim knob is provided for fine tuning. Texture can be added by pushing the Silk button, which activates dedicated circuitry. The desired amount of texture can be dialed in with a knob, which adds harmonic content–creating tones that are reminiscent of vintage Neve equipment.
The 511 isn't limited to working with microphones. With the Gain knob set at 0 dB, the unit is capable of accepting line-level signals. Condenser microphones and active DI boxes can be powered by engaging the 48V phantom power button on the 511. An illuminated Polarity button inverts the signal when pressed. A variable High-Pass Filter can be engaged by an illuminated button as well, and a knob enables you to sweep between 20-250 Hz. An eight-segment LED meter allows you to visually monitor the output. A 500-Series power supply/rack is required for operation.
|Number of Channels||Single|
|Inputs||1x XLR, balanced|
|Output||1x XLR, transformer-balanced|
Phantom Power Supplied by the 500 series rack power supply. Switch selectable on faceplate.
|Maximum Output Level||+23dBu|
|Frequency Response||Main output, no load: +/- 0.1dBu from 10Hz to 31.5kHz -2.6dB @ 120kHz|
|THD||Total Harmonic Distortion and Noise @ 1 kHz, +20dBu output level, no load: better than 0.0025% @ 20 Hz, +20dBu output level, no load
0.025% Typical (2nd and 3rd harmonic
Total Harmonic Distortion and Noise with SILK engaged TEXTURE @ min @ 100Hz, +20dBu input level, no load 0.015%, mostly 3rd harmonic (typical)
TEXTURE @ max: @ 100Hz, +20dBu input level, no load 2%, mostly 2rd harmonic (typical)
|Noise||Noise measured at Main Output, un-weighted, 22 Hz - 22 kHz, source impedance 150 Ohms balanced. Noise performance can vary depending on the 500 series and/or interference from stray magnetic fields.
EIN: -126 dB 150 ohm
|Gain||Unity Gain: better than -103dBV
With Gain @ +66 dB: better than -60dBV
|Gain Range||Gain Unity up to +66 dB in 6 dB steps
Trim continuously adjustable from -6 dB to +6 dB
|Controls||1x Trim knob
1x Gain knob
1x High-Pass Filter knob
1x Texture knob
1x Phantom Power button
1x Polarity Reverse button
1x High-Pass Filter button
1x Silk button
|High-Pass Filter||High-Pass Filter continuously variable swept frequency from 20 Hz to 250 Hz
Slope: 12 dB/Octave
|Meter||8 segment LED meter|
|Power Requirements||Power Requirements @ +/-16VDC 100mA|
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