£645.00 (Inc VAT)
£645.00 (Ex VAT). Shipping calculated at checkout.
Punchy, thick and versatile, 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. Originally developed for the dynamics circuit of the acclaimed Shelford Channel, the 535 is outfitted with Rupert Neve Designs’ custom transformers and class-A output amplifiers, all tailor-made for the popular 500-series format.
Almost 50 years after Mr. Rupert Neve created his first diode bridge compressor designs, the 535 reimagines the larger-than-life personality of these classic circuits with new levels of precision and adaptability, helping virtually any track shine through a mix.
Where the VCA compressor found in the 543 and 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. Mr. Rupert Neve`s original diode bridge compressors like the 2254 served as an inspiration for the design of the 535. By understanding the limitations of the original 2254 topology, painstaking effort was taken to reproduce the unique tone of the 2254 while improving the noise floor, expanding inflexible time constants, adding full wave sidechain detection for improved dynamic response, widening the range of threshold and ratio controls, and raising the headroom of the diode bridge itself. Delivering the powerful sound of these classic designs with enhanced flexibility for the modern age, the 535 is a dynamic tool equipped to make a statement on virtually any track.
The unified TIMING control is comprised of six selectable settings, carefully chosen for different applications – a major departure from the fixed attack of the 2254. FAST and MF settings are designed to help clamp down on more transient signals like drums, plucked string instruments and fast vocals. MED and MS have slightly slower attacks and releases which can allow more transients through while having a slightly longer recovery. Lastly, SLOW and AUTO are both significantly slower, and are designed for smoother level control.
FAST mode increases the speed of both attack and release for each setting, effectively doubling the number of time constants from 6 to 12. The FAST mode also allows for a dramatic increase in speed as compared to the 535’s renowned ancestors, providing significantly more tonal & operational versatility.
Faster TIMING settings will generally lead to higher peak-to-peak control voltage ripple, and therefore induce more harmonic content, translating into more colour in the main audio path. Slower TIMING settings will smooth the control voltage significantly, and thereby reduce the harmonic content added to the audio path, resulting in more transparent compression. It is also worth noting that due to the nature of this topology, these time constants adapt themselves slightly depending on several factors: compression ratio, threshold, and source material. This dynamically generated timing shift and harmonic content is what gives the Diode Bridge Compressor its unique personality.
Given the naturally coloured sonic signature of the 535’s diode bridge, this built-in parallel compression ability is especially useful. The BLEND control allows the user to inject smaller amounts of extreme compression into an otherwise unaffected signal, creating an enhanced yet natural sound that maintains dynamic range with blendable colour and punch.
In addition to the TIMING control, the diode bridge compressor can be further manipulated by the RATIO, THRESHOLD, GAIN, SC HPF and LINK controls. The RATIO control has six selectable positions on the rotary switch and allows the user to set the slope of the compressor curve, with pre-selected ratios of 1.5:1 through 8:1. The THRESHOLD control has 31 detents and allows the user to adjust the point at which compression begins, ranging from -25dBu to +20dBu. The GAIN control has 31 detents to add make-up gain ranging from -6dB to +20dB. The S/C HPF is 12dB/octave sidechain high-pass filter with a frequency set to 150Hz. This feature can be immensely useful for making the compressor respond less to the powerful – and often more sustaining – low frequencies in a mix or instrument, which may otherwise give the compressor a more "mushy" response. LINK is designed to utilise the 500-series link buss built into many 500 series racks like the R6 or R10 (check your rack’s manual for details). When both units have link engaged and connected, the control voltage is shared between them – so when one unit is triggered, it will trigger the other unit equally. This can often help maintain a solid centre image in a stereo source. Note: for stereo sources, it is always worth auditioning the “unlinked” sound as well, as linking can sometimes clamp down on the effective stereo width when the compressors are triggered by one side.
UK Mainland – Orders over £99 qualify for FREE standard shipping (1-3 working days) We also offer a range of chargeable express shipping options for next working day, pre 12pm, pre 10.30am, Saturday deliveries and deliveries on a specific date. Our main UK courier is DPD.
UK Non Mainland – Not eligible for free shipping. These areas include (but are not limited to) Isle of Man, Isle of Wight, Isles of Scilly, Jersey, Guernsey, Northern Ireland, Orkney, Scottish Highlands and Shetland. Shipping costs for these ares will be calculated at checkout.
International/Export – Delivery charges will be calculated at checkout. All orders that are in stock we aim to dispatch from our warehouse within 48 hours. We ship all orders outside of the UK, NI, Isle of Man, Channel Islands via Fedex. All prices and delivery charges are exclusive of VAT for export. The customer is responsible to pay for any additional duties and charges.
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