The vintage EQ tones you know & love.

The 551 is the only equalizer for the 500 Series actually designed by Rupert Neve. Featuring 3 bands of EQ inspired by Mr. Neve’s most prized vintage designs, along with custom-wound inductors, transformers and class-A gain blocks, the 551 brings the thick, powerful lows and sweet highs of Rupert’s classics to the 500-Series format.

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Rupert Neve Designs | 551

HK$6,850.00

EQUALIZER BYPASSED

NOISE
Measured at Main Output, un-weighted, 22Hz-22kHz, source impedance 40 Ohm balanced. Noise specifications may vary depending on which 500 series chassis is being used, and / or interference from stray magnetic fields.
Better than -102 dBV

FREQUENCY RESPONSE
Main output, no load: +/- 0.1 dBu from 20 Hz to 31.5 kHz, -1 dB @ 120 kHz

MAXIMUM OUTPUT LEVEL
23.25 dBu

TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu output level, no load: Better than 0.0025%
@ 20 Hz, +20 dBu output level, no load: 0.13% Typical (2nd and 3rd harmonic)

HIGH PASS FILTER
-2.7 dB @ 80 Hz
Slope: 12 dB/Octave

EQUALIZER ENGAGED

NOISE
Measured at Main Output, un-weighted, 22 Hz - 22 kHz, source impedance 40 Ohm balanced.
Better than -94 dBV

FREQUENCY RESPONSE
Main output, no load: +/- 0.25 dBu from 20 Hz to 45 kHz, -2 dB @ 120 kHz

MAXIMUM OUTPUT LEVEL
23 dBu

TOTAL HARMONIC DISTORTION AND NOISE
@ 1 kHz, +20 dBu output level, no load: Better than 0.009%
@ 20 Hz, +20 dBu output level, no load: 0.13% Typical (2nd and 3rd harmonic)

POWER REQUIREMENTS
120mA on +16VDC
110ma on -16VDC