Vintage-inspired mic pre & EQ for the 5088.
The Shelford 5052 echoes the simple and definitive 1073 feature set with a mic preamp, high pass filter, and 3-band inductor EQ, plus modern capabilities like the variable Silk / Texture control and simultaneous pre / post “tape” operation. Utilizing class-A, discrete, +/-24V topologies with custom-wound transformers and inductors, Rupert Neve designed the 5052 as a channel strip that captures the soul of his classic designs – without the previous compromises.
 
SPECIFICATIONS
 
MIC PREAMP

NOISE
Un-weighted, 22 Hz - 22 kHz, source impedance 150 Ohm balanced.
Mic Pre Out @ unity gain: Better than -102 dBV
Main Out @ unity gain: Better than -103 dBV
With gain @ +66 dB: Better than -60 dBV
Equivalent Input Noise: Better than -126 dB
Gain Unity: up to +66 dB in 6 dB steps followed by a +/- 6 dB trim
LINE INPUT
Gain +/- 6 dB continuously adjustable
MIC PRE OUTPUT
Un-weighted, 22 Hz - 22 kHz, source impedance 40 Ohm balanced.
No load: Via line input with 40 Ohm source impedance
NOISE
Better than -102 dBV
FREQUENCY RESPONSE
+/- 0.1 dBu from 10 Hz to 31.5 kHz
-2.6 dB @ 120 kHz
MAXIMUM OUTPUT LEVEL
25 dBu
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu output level, no load: Better than 0.002%
@ 20 Hz, +20 dBu output level, no load: 0.25% Typical (2nd and 3rd harmonic)
MAIN OUTPUT
Measured via line input.
NOISE
Un-weighted, 22Hz - 22kHz, source impedance 40 Ohm balanced. 
No load: Better than -102 dBV
FREQUENCY RESPONSE
+/- 0.1 dBu from 10 Hz to 40 kHz
-1 dB @ 174 kHz
MAXIMUM OUTPUT LEVEL 
25 dBu
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu output level, no load: Better than 0.002%
@ 20 Hz, +20 dBu output level, no load: 0.08% Typical (2nd and 3rd harmonic)
TOTAL HARMONIC DISTORTION AND NOISE WITH SILK ENGAGED
RED
TEXTURE @ min.
@ 100 Hz, +20 dBu input level, no load 0.015%, mostly 3rd harmonic (typical)
TEXTURE @ max.
@ 100 Hz, +20 dBu input level, no load 1.5%, mostly 2rd harmonic (typical)
BLUE
TEXTURE @ min.
@ 100 Hz, +20 dBu input level, no load 0.0075%, mostly 3rd harmonic (typical)
TEXTURE @ max.
@ 100 Hz, +20 dBu input level, no load 1%, mostly 2rd harmonic (typical)
EQ INPUT
Un-weighted, 22 Hz - 22 kHz, source impedance 40 Ohm balanced.
No Load: Noise Better than -105 dBV
FREQUENCY RESPONSE
+/- 0.1 dBu from 10 Hz to 40 kHz
-1 dB @ 174 kHz
MAXIMUM OUTPUT LEVEL 
26 dBu
TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu output level, hi Z: Better than 0.002%
@ 20 Hz, +20 dBu output level, hi Z: 0.006% Typical (2nd and 3rd harmonic)
HIGH PASS FILTER
Continuously variable swept frequency from 20 Hz to 250 Hz.
Slope: 12 dB/Octave
 
EQUALISER ENGAGED

NOISE
Un-weighted, 22 Hz-22 kHz, source impedance 40 Ohm balanced.
No load: Better than -95 dBV
MAXIMUM OUTPUT LEVEL
25 dBu
PHANTOM POWER
Supplied by internal switching converter, switch selectable on front faceplate
MAXIMUM INPUT
From 20 Hz to 20 kHz, +25 dBu
POWER REQUIREMENTS
@ +/-24VDC maximum current draw: 0.26A/0.20A
DIMENSONS
9.375” H x 1.75” W