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Rupert Neve Designs 517

Preamp for 500 Series

  • Rupert Neve Designs 517
  • Rupert Neve Designs 517 Details

Price: $850.00


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Product Description

Mic Pre and Instrument Amplifier
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 Designs 517 Specifications
Frequency Response
Main Output, no load, –0.2 dB @ 10 Hz –3 dB @ 160 kHz

Noise
Measured at Main Output, unweighted, 22Hz-22kHz, Terminated 150 Ohms. With gain at unity better than –100 dBu With gain at 66 dB better than –62 dBu Equivalent Input Noise better than –128 dBu Noise Factor 1.5dB

Maximum Output Level
Maximum output from 20 Hz to 40 kHz is +23 dBu.

Total Harmonic Distortion and Noise
@ 1kHz, +20 dBu output: Main Output: Better than 0.001% @ 20Hz, +20 dBu output: Main Output: Better than 0.002% Silk Engaged: Better than 0.2% Second harmonic

Crosstalk
Measured channel to channel: Better than –90 dB @ 15kHz.

Phantom Power
+48 Volts DC +/- 1%

Warranty Information

Our ONE WITH EVERYTHING ZEN WARRANTY adds a full year to the standard manufacturer warranty at no charge, see our ZEN WARRANTY page for details.

Customer Reviews / Q&A Discussion