Rupert Neve 517 Portico 500-Series Preamp, DI & Compressor

Rupert Neve

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Product Code: 9999-08819
$899.00
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The Rupert Neve 517 Portico 500-Series Preamp, DI & Compressor provides world-class transformer-coupled microphone preamp, compressor and DI circuitry with Vari-phase, Silk and DI/mic blending capabilities – all in a single 500 series module.

The 517’s mic pre – based on the TEC Award-winning Portico 5017 – provides up to 66dB of gain, polarity-reverse and phantom power switches, and the "Silk" circuit for a more vintage vibe. The separate instrument amplifier includes 30dB of gain, a ground lift, variable phase and an instrument Thru connection.

Blended Use
Used as a single channel device for instruments, the 517 can be used to phase align, combine and compress direct and amplified signals. To achieve this, use the DI for the instrument’s direct signal and the mic preamp for the speaker cabinet signal. The blend control is used for mixing direct and amplified signals to achieve the desired tonal blend between the two sources, and the variphase is used to minimize or extenuate phase cancellations between the two signals. To compress the blended signal, the internal compressor jumper must be set to the blend path (this is the default setting). This technique could also be used to create a single, mixed output of a guitar and vocals.

The Compressor
Based around a new LDR (light dependent resister) design, the 517’s opto-coupler compressor has been simplified to a single threshold control with auto make up gain. By default, the compressor is set to a fixed 2:1 ratio with fixed attack and release. To set the compressor, simply dial the threshold control down until the desired amount of compression is achieved. An LED light indicates when the compressor is active.

Vari-Phase
In addition to the standard polarity reverse, the 517’s vari-phase control may be used to adjust phase incrementally. This control is useful any time two signals derived from the same source are combined.

For instance, even with careful placement, the combination of close miced drums and overheads, can often yield hollow-sounding results. By using the variable phase adjust, the direct signal can be phase rotated until the signals are naturally aligned.

This technique is also extremely useful when combined with the internal blend control on instruments. A bassist or guitarist using both direct and mic’d signals can blend the two into a single output, using the variable phase to reach an optimal alignment. By adjusting the phase in the 517, the musician or engineer can find the absolute best mic position without regard to the phase relation to the direct signal.

Rupert Neve 517 Portico 500-Series Preamp, DI & Compressor 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.
  • Mic Gain: Mic gain is from 0dB to 66dB. Overall gain to restore the apparent program level
  • DI Gain: DI Gain is from 0dB to 30dB
  • DI input: Balanced or unbalanced Hi-Z input for instruments
  • Phantom Power: Provides 48v phantom power to microphones. Controlled by the 48V switch.
  • Polarity Reverse: Reverses the polarity of the mic input
  • Threshold: When signals exceed the "threshold" level, the gain is reduced at a controlled 2:1 ratio, with fixed attack and release time constants.
  • Indicators: Indicators on the 517 denote signal presence and clipping on both DI and mic signals, as well as compressor activation.

Rupert Neve 517 Portico 500-Series Preamp, DI & Compressor Specifications

  • Gain Range: Continuously variable from 6 dB to +20 dB.
  • Threshold Range: Continuously variable from 36 dB to +22 dB.
  • Ratio Range: Continuously variable from 1.1:1 to Limit (40:1).
  • Attack Range: Continuously variable from 20mS to 75mS
  • Release Range: Continuously variable from 100mS to 2.5 Seconds.
  • FF/FB: Feed-Forward or Feed-Back VCA control.

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What We Think

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The Rupert Neve Designs 5017 got us excited. But for folks who already have a wad of gear or who want to amass a well designed studio, the bedroom-studio form-factor of the 5017 doesn't really lend itself to that endeavor. But now with the Rupert Neve Designs 517, one can easily add modules to their 500-series power-supply at their own pace. Personally, I love the RND gear. The preamp is solid and very classy sounding. The compressor is excellent and very musical. I love that the line is something new and is a nice manifestation of the marriage of technical perfection and the musicality of technology. Not only are some of the greatest minds of the audio world designing for Rupert Neve Designs (Rupert Neve himself and Craig 'Hutch' Hutchison [formerly of Manley Labs], but they are approaching professional audio without the wastefulness of yesteryear. Truly a company to admire.

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