Shelford 5052
Channel Strip
From Rupert Neve Designs:
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.
Like Rupert’s designs from his time in Little Shelford, the 5052 preamplifier has 72dB of discrete, class-A gain coupled with robust square-core transformers. Unlike the classics however, the output transformer features the Silk Red / Blue and Texture controls to precisely tailor the harmonic content and tonality of the output stage.
By engaging these controls and sufficiently driving the output, the 5052 can produce up to 4-5% THD (primarily 2nd order, some 3rd order), bringing a richness and thickness to tracks when desired with no danger of overloading the output stage. With Silk disengaged, the output is modern and pristine, yet still retains Rupert’s signature larger-than-life transformer sound. The mic pre section also includes a sweepable 20-250Hz high-pass filter, Mic / Line selection, 48V phantom power, and polarity reverse.
Specs
- Mic preamp noise (un-weighted, 22 Hz - 22 kHz, 150 Ohm balanced source)
- 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
- Mic preamp 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 noise (via line input, 40 Ohm source, no load)
- Better than -102 dBV
- Mic pre output frequency response
- +/- 0.1 dBu from 10 Hz to 31.5 kHz; -2.6 dB @ 120 kHz
- Mic pre output maximum output level
- 25 dBu
- Mic pre output THD+N
- @ 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 noise (via line input, un-weighted, 22Hz - 22kHz, 40 Ohm balanced source, no load)
- Better than -102 dBV
- Main output frequency response
- +/- 0.1 dBu from 10 Hz to 40 kHz; -1 dB @ 174 kHz
- Main output maximum output level
- 25 dBu
- Main output THD+N
- @ 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)
- THD+N with Silk Red engaged (@ 100 Hz, +20 dBu input level, no load)
- TEXTURE @ min. 0.015%, mostly 3rd harmonic (typical); TEXTURE @ max. 1.5%, mostly 2rd harmonic (typical)
- THD+N with Silk Blue engaged (@ 100 Hz, +20 dBu input level, no load)
- TEXTURE @ min. 0.0075%, mostly 3rd harmonic (typical); TEXTURE @ max. 1%, mostly 2rd harmonic (typical)
- EQ input noise (un-weighted, 22 Hz - 22 kHz, 40 Ohm balanced source, no load)
- Better than -105 dBV
- EQ input frequency response
- +/- 0.1 dBu from 10 Hz to 40 kHz; -1 dB @ 174 kHz
- EQ input maximum output level
- 26 dBu
- EQ input THD+N
- @ 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
- Noise, equaliser engaged (un-weighted, 22 Hz-22 kHz, 40 Ohm balanced source, no load)
- Better than -95 dBV
- Maximum output level, equaliser engaged
- 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
- Dimensions
- 1.75” W x 8.75” D x 9.4” H (4.5 cm W x 22.2 cm D x 23.9 cm H)
- Weight
- 3.5 lbs. (1.6 kg)
Source: Rupert Neve Designs Shelford 5052 product page