Rupert Neve 5035 Shelford Channel Mic Preamp/EQ/Compressor

The Rupert Neve 5035 is a Shelford Channel Mic Preamp/EQ/Compressor. The Shelford Channel is built around Rupert Neve’s first new transformer-gain, class-A microphone preamplifier in over 40 years, a “best-of-the-classics” inductor EQ section, a tone-packed diode bridge compressor, the power of variable Silk saturation, a new dual-tap transformer output stage, and twice the operating voltage of vintage designs.

Rupert Neve 5035 Features

• Pushing the Silk button cycles the Silk modes from Red to Blue to OFF
• DI / THRU: The Hi-Z front panel input uses the same discrete class-A FET with transformer topology as the Rupert Neve Designs RNDI, but it utilizes the new RN4012 input transformer directly into the microphone preamp for gain. This design, delivers exceptional clarity to high-Z sources, with a substantial low-end presence and incredibly smooth high frequencies. The DI also includes a passive THRU output to feed a separate amplifier
• MIC/DI & LINE switches between microphone/direct injection input (button out) or line input (button in)
• Gnd Lift switch separates the direct connection from audio signal ground to chassis earth
• Signal Present LED
• 12-way precision rotary switch controls gain from 0 to 66 dB in 6 dB steps
• Trim rotary switch provides further continuous gain adjustment over a range of +/– 6 dB
• 48V push button switch engages phantom power on the microphone input
• Polarity push button switch inverts the polarity of the signal path
• The HPF switch engages a 12dB per octave high pass filter. The HPF FREQ potentiometer is variable from 20Hz to 250Hz, and can be used to filter out unwanted low frequencies, or in conjunction with the EQ to help shape source material. Note that engaging the HPF to S/C switch moves the HPF from the primary signal path to the compressor side-chain signal path
• EQ In switch engages all EQ frequency bands except the HPF
• LF EQ: +/- 15dB, Shelf or Peak, selectable at 35 Hz, 60 Hz, 100 Hz or 220 Hz
• MID EQ: +/- 15dB with 6 center frequencies; 220 Hz, 400 Hz, 900 Hz, 1.8 kHz, 3.5 kHz and 7.5 kHz, with MID HI Q switch to narrow the bandwidth or increase the Q of the filter
• HF EQ: +/- 15dB, Shelf or Peak, selectable at 8 kHz or 16 kHz
• Threshold: Sets level where the compressor may begin to react, from -25 dB to +20 dB
Minimal or no compression is with this control fully clockwise and it gets more sensitive and tends to cause more gain reduction as the knob is rotated counter-clockwise
• Ratio: Sets the “slope” of the compression from 1.5:1 (minimal) to 8:1 (significant)
• SC (Side Chain) Insert
• HPF to S/C: Routes the High Pass Filter into the side chain of the compressor circuit
• Post-compressor make-up gain
• 6-position control adjusts the attack/release speed of the compressor. For specific timing values, see Specifications below, or reference the manual
• Pre EQ button places the Compressor before the EQ in the circuit
• VU Meter is calibrated to display both average (RMS) output level and compressor gain reduction
• Peak LED: Red indicates near clipping of the output stage
• In addition to the MAIN full-headroom output, the -6dB output creates a rich harmonic character while reducing the risk of clipping the next device in the chain
• Universal IEC Power Input
• Works worldwide, accepting voltages from 100-240VAC

• 5035 Shelford channel mic preamp / EQ / compressor1

• Input Impedance2200 Ohm
• Max. Input
  • +21.5 dBu from 150 Hz to 22 kHz
  • +8 dBu 20 Hz to 22 kHz
• Noise (un-weighted, 22 Hz-22 kHz, source impedance 150 Ohm balanced)
  • Main Out @ unity gain -100.9 dBu
  • -6 dB Out @ unity gain -106.6 dBu
  • +30 dB gain (Main Out) -91.37 dBu
  • +66 dB Gain (Main Out) -64.1 dBu
  • Equivalent Input Noise -121.37 dBu
• Frequency Response+/-0.25 dB from 17 Hz to 45 kHz
• Direct Input
  • Max. Input: 8 dBu @ 20 Hz to 120 kHz
  • Noise (main output): -100 dBu (22 Hz to 22 kHz)
• Line Input
  • Max. Input Level: +30.5 dBu 20 Hz to 30 kHz
  • THD and Noise
  • @ 1 kHz, +20 dBu output level, no load: Better than 0.002%
  • @ 20 Hz, +20 dBu output level, no load: 0.05% Typical (2nd and 3rd harmonic)
  • Noise (main output): Un-weighted, 22 Hz - 22 kHz, source impedance 40 Ohm balanced, no load. -101.1 dBu
  • Frequency Response
  • +/- 0.25 dBu from less than 10 Hz to 110 kHz
  • -0.32 dB @ 120 kHz
  • Max. Output Level: +26 dBu @ 16 Hz to 20 kHz
• THD and Noise with Silk Engaged
  • Red
  • MIN TEXTURE @ 100 Hz, +20 dBu input level, no load: 0.0131%, mostly 3rd harmonic (typical)
  • MAX TEXTURE @ 100 Hz, +20 dBu input level, no load: 1.66%, mostly 2rd harmonic (typical)
  • Blue
  • MIN TEXTURE @ 100Hz, +20 dBu input level, no load: 0.0079%, mostly 3rd harmonic (typical)
  • MAX TEXTURE @ 100Hz, +20 dBu input level, no load: 0.941%, mostly 2rd harmonic (typical)
• High Pass FilterContinuously variable swept frequency from 20 Hz to 250 Hz. Slope: 12 dB/Octave
• EQ NoiseUn-weighted, 22 Hz-22 kHz: -92 dBu
• Signal PresentIlluminates GREEN when input stage signal level reaches -20 dBu
• Overload IndicatorIlluminates RED when input stage signal level reaches -23 dBu
• Diode Bridge Compressor
  • NOISE (BW 22 Hz – 22 kHz)
  • 0 dB Makeup Gain: -84.5 dBu
  • +20 dB Makeup Gain: -64.2 dBu
  • Time Constraints
  • Measurements taken represent full range achievable between 1.5:1 Ratio and 8:1 Ratio setting.
  • 0 dBu I/P 1kHz Burst Tone used for all recorded measurements.
  • Fast (TC1): Attack 180µS — 1.8mS // Release 100mS – 150mS
  • MedFast (TC2): Attack 750µS – 5.25mS // Release 160mS – 250mS
  • Med (TC3): 2.7mS – 18mS // Release 350mS – 525mS
  • MedSlow (TC4): 4.6mS – 38mS // Release 600mS – 1 S
  • Slow (TC5): 11mS – 72.5mS // Release 800mS – 1.25 S
  • Auto (TC6): 5.75mS – 35.5mS // Release T1 400mS – 850mS, T2 TBD
  • “Fast” Mode Multiplier: Modifies aforementioned TC’s by 70% of original value
• Dimensions19x10.5x1.75"
• Shipping Weight12.25 pounds