Rupert Neve's 517 Mic Preamp / DI / Compressor provides a world-class transformer-coupled mic preamplifier, one-knob compression, DI circuitry with Vari-phase, Silk saturation and DI + mic blending capabilities – all in a single module.
Rupert Neve 517 Features
- 12-way precision rotary switch covering from Line (0) and Mic from 0 to 66 dB in 6 dB steps.
- Push button inverts the polarity of the signal path. The symbol “Ø” is often used to denote opposite polarity.
- The VARI-PHASE control rotates the phase incrementally, allowing two signals with the same source to be phase aligned.
- Front panel TRS Input and passive through for hi-z sources. Continuous gain control from 0dB to 30dB.
- THRU & INST 1/4” phone jacks.
- 517 500 series mic preamp/DI/compressor1
- Frequency Response
- Mic Pre, Main Output, no load
- -0.1 dB @ 10 Hz
- -1 dB @ 120 kHz
- DI Input, Main Output, no load
- -0.1 dB @ 10 Hz
- -1 dB @ 120 kHz
- Noise
- Measured at Main Output, unweighted, 22Hz - 22kHz, Terminated 150 Ohm
- With gain at unity: better than -100 dBu
- With gain at 66 dB: better than -60.5 dBu
- DI
- With Gain @ Unity: Typically better than -100 dBu
- With Gain @ +30 dB: Typically better than -75 dBu
- High Pass Filter
- Frequency: 80 Hz
- Slope: 12 dB/Octave Bessel
- Microphone Input Impedance10,000 Ohm
- Instrument Input Impedance1.6 Meg Ohm (3.3 Meg Ohm balanced)
- Max. Output LevelMaximum output from 20 Hz to 40 kHz is +23 dBu
- Gain
- Mic Pre: Unity to +66 dB in 6 dB steps
- DI: Unity to +30 dB continuous
- THD and Noise
- @ 1 kHz, +20 dBu output: Main Output: Better than 0.001%
- @ 20 Hz, +20 dBu output: Main Output: Better than 0.002%
- Silk Engaged: Better than 0.2% Second harmonic
- Vari-Phase
- @ 100 Hz: 2.9 degrees to 57.4 degrees
- @ 1 kHz: 33.5 degrees to 156 degrees
- @ 10 kHz: 149 degrees to -175 degrees
- Phantom Power+48 Volts DC +/- 1% (provided by 500 Series Rack)
- Power Requirementssupplied by 500 series rack with 110-125 mA @ +/- 16V
- Compressor
- Threshold: continuously variable from -20 dBu to +10 dBu
- Ratio: fixed at 2:1
- Attack and Release
- Fast Mode: Attack 5ms, Release 50ms
- Slow Mode: Attack 250ms, Release 500ms
- THD: Measured @ Main Output
- Mic Preamp and DI
- @ 1 kHz, +20 dBu output: Better than 0.002%
- @ 20 Hz-20 kHz, +4 dBu output: Better than 0.02%
- Silk
- @ 20 Hz, +4 dBu output: Better than 0.5%
- @ 50 Hz, +4 dBu output: Better than 0.1%
