PMT Audio
Rupert Neve Designs 535 Diode Bridge Compressor

Rupert Neve Designs

535 Diode Bridge Compressor

500 Series Module

From Rupert Neve Designs:

Originally developed for the dynamics circuit of the acclaimed Shelford Channel, the 535 Diode Bridge Compressor captures the soul of Rupert Neve’s original 2254 compressor while providing modern updates including advanced timing control, significantly lower noise, fully stepped controls throughout, and internal parallel processing capabilities.

Where the VCA compressor found in the Master Buss Processor provides unmatched clarity, the weighty, harmonically rich tonality of diode bridge compression can be essential in pushing key sources like vocals, electric guitars, bass and drums to the forefront of a mix.

By understanding the limitations of vintage units like the legendary 2254, painstaking effort was taken to reproduce the unique tone of these classics while improving the noise floor & accuracy, expanding inflexible time constants, adding full wave sidechain detection for improved dynamic response, and widening the range of threshold and ratio controls.

Specs

Maximum input level
+23.5 dBu
Maximum output level
+23.5 dBu
Input impedance
10K Ohm
Output impedance
40 Ohm
THD+N (@ 1 kHz @ Maximum Output Level, 22 Hz - 22 kHz BW)
0.001%
Noise (22 Hz - 22 kHz BW, 40 Ohm balanced source)
-101 dBu
Frequency response (10 Hz - 120 kHz, 30ft output XLR cable)
+/- 0.1 dB
Compressor timing (full range between 1.5
1 and 8:1 ratio): FAST – Attack 250 μS - 2 mS // Release 100 mS - 200 mS typical; MF (MEDIUM FAST) – Attack 1 mS - 5 mS // Release 100 mS - 200 mS typical; MED (MEDIUM) – Attack 3 mS - 18 mS // Release 350 mS - 700 mS typical; MS (MEDIUM SLOW) – Attack 5 mS - 40 mS // Release 600 mS - 1 S typical; SLOW – Attack 10 mS - 80 mS // Release 800 mS - 1.5 S typical; AUTO – Attack 5m S - 40m S // Release T1 400-900 mS, T2 1-2 S typical
Power consumption (+/-16VDC)
100 mA
Dimensions
1x 500 Series Module: 1.5” W x 5.9” D x 5.25” H (3.8 cm W x 15 cm D x 13.3 cm H)
Weight
1.5 lbs. (0.7 kg)

Source: Rupert Neve Designs 535 product page